Associations between body mass index and health-related quality of life among Australian adults

Objectives  

To assess the relationship between body mass index (BMI) and health-related quality of life (HQoL), as measured by the Short Form Health Survey (SF-36) within a sample with broad population coverage.     

The relationship between body mass index and health-related quality of life in urban disadvantaged children

Introduction

The study’s aim was to establish, for children living in urban disadvantage, the nature and extent of the relationship between body mass index (BMI) and health-related quality of life (HRQoL), including the role of individual and family factors in influencing this relationship.

Methods

Within the context of a longitudinal design, 255 children aged 7–12 years (50 % male) self-reported their HRQoL (Kidscreen-27) and had their height and weight measured at year one and two. One parent/guardian for each child was also assessed at year one with the OSLO Social Support Scale and Hospital Anxiety and Depression Scale. Regression analysis was also conducted.

Results

BMI was weakly inversely associated with ‘total HRQoL’ (r = ?.15, p < .05), ‘physical well-being’ and ‘autonomy and parent relations’. Significant differences were found between normal weight and obese children on all but the latter dimension. Neither weight group, however, fell below the average European HRQoL range. BMI predicted physical well-being a year later and vice versa, whilst autonomy and parent relations also predicted BMI a year later. In terms of ‘overweight’ children (38 %), those approaching adolescence had poorer physical and school well-being than younger children, and those whose parents had moderate-to-severe levels of depression fared worse on school well-being than children whose parents were not depressed.

Conclusion

The findings suggest that obesity programmes could aim to prevent/reduce obesity and optimise HRQoL in urban disadvantaged preadolescent children whilst also targeting parental mental health difficulties. Future research should examine mediators of the effect of BMI on HRQoL.     

The effect of body mass on health-related quality of life among Singaporean adolescents: results from the SCORM study

Purpose  

To investigate the relationship between body mass and health-related quality of life (HRQOL) among Singaporean adolescents. Variation in this relationship by age, gender and ethnicity, and association of HRQOL with change in body mass over time and with demographic, socioeconomic and health variables were also assessed.     

Health-related quality of life and body mass index among US adolescents

Purpose

To examine the magnitude of differences in health-related quality of life (HRQOL) by body mass index (BMI) in a population-based sample of United States adolescents overall and by sex, and to provide national prevalence estimates of reported HRQOL outcomes for not only obese and overweight but also underweight adolescents.

Methods

From the 2001 through 2010 cross-sectional National Health and Nutrition Examination Surveys, we estimated the percentages of four HRQOL outcomes—self-rated health, physically unhealthy days, mentally unhealthy days, and activity limitation days—in four BMI categories—obese, overweight, normal weight, and underweight—of approximately 6,000 US adolescents aged 12–17 years. We also estimated the percentages for boys and girls separately.

Results

Substantial gaps in self-rated health exist between normal-weight adolescents and those who are obese and overweight, but not underweight. Eighteen percent (95 % CI 15–22) of obese adolescents reported fair or poor health compared to only 5 % (95 % CI 4–7) of normal-weight adolescents. Thirty-seven percent (95 % CI 33–42) of obese adolescents reported excellent or very good health, compared to 65 % (94 % CI 63–67) of normal-weight adolescents. However, all BMI groups reported similar percentages of physically unhealthy days, mentally unhealthy days, and activity limitation days. The associations between HRQOL and BMI groups did not vary by sex. Boys generally reported significantly better self-rated health and mental health than girls. Specifically, obese boys reported better self-rated health, mental health, and fewer activity limitation days than obese girls.

Conclusions

Substantially, significant differences in some domains of HRQOL are found between above normal-weight and normal-weight US adolescents. This relationship between BMI and HRQOL is robust and observed among both boys and girls.     

中国9省市中老年人群体重指数与健康相关生命质量的关系

Objective To study the association between body mass index (BMI) and the health-related quality of life (HRQOL) in the middle-aged and older Chinese people. Methods Data of 9539 middle-aged and older adults was collected from a cross-sectional survey performed in 9 provinces of China (Jiangsu, Anhui, Gansu, Qinghai, Fujian, Beijing, Jilin, Jiangxi and Henan province). MO SSF-36 was used to measure HRQOL. BMI classification was in accordance with the criteria recommended by the Ministry of Health of China. Rank sum test was used to compare HRQOL between subjects with normal weight and those with different BMI classification. Multiple logistic regression analysis was used to assess the association of HRQOL with BMI after adjusted for sex, age, marital, education, physical activity status and chronic diseases. Results When compared with middle-aged and older adults at normal weight range (18.5≤BMI<24) , data on physical domain (P<0.001) , mental domain (P< 0.01) and 8 dimensions of HRQOL (physical functioning, mental health, P<0.05; role-physical, bodily pain, general health, vitality, social functioning, role-emotional, P<0.01)among subjects with underweight (BMI<18.5) were significantly lower while mental component summary (P<0.05) of overweight subjects (24≤BMI<28) was significantly higher. Obese subjects (BMI≥28) had worse physical function (physical functioning, P<0.01) but better mental health (mental health, P<0.01; mental component summary, P<0.05). After adjusting for other factors, and compared to middle aged and older adults with normal weight, data on odds ratios (ORs) of impaired HRQOL in physical domain (OR=1.67, 95% CI: 1.35-2.06), mental domain (OR=1.39, 95%CI: 1.13-1.70) and 8 dimensions increased among underweight subjects while ORs of impaired HRQOL in mental domain (0R=0.86,95% CI: 0.78-0.95) and role-physical, vitality, social functioning, role-emotional and mental health dimensions decreased among overweight subjects. ORs increased (OR=1.51,95% CI: 1.27-1.80) in impaired HRQOL in physical functioning dimension but decreased in mental domain (OR=0.71,95%CI: 0.60-0.85) as well as vitality, role-emotional and mental health dimensions among obese subjects. Conclusion HRQOL of each domain were different among middle aged and older adults with different BM1 classification. Underweight people had poor HRQOL in both physical domain and psychological domain, and obese people had poor physical function but good mental health condition.     

中国9省市中老年人群体重指数与健康相关生命质量的关系

Objective To study the association between body mass index (BMI) and the health-related quality of life (HRQOL) in the middle-aged and older Chinese people. Methods Data of 9539 middle-aged and older adults was collected from a cross-sectional survey performed in 9 provinces of China (Jiangsu, Anhui, Gansu, Qinghai, Fujian, Beijing, Jilin, Jiangxi and Henan province). MO SSF-36 was used to measure HRQOL. BMI classification was in accordance with the criteria recommended by the Ministry of Health of China. Rank sum test was used to compare HRQOL between subjects with normal weight and those with different BMI classification. Multiple logistic regression analysis was used to assess the association of HRQOL with BMI after adjusted for sex, age, marital, education, physical activity status and chronic diseases. Results When compared with middle-aged and older adults at normal weight range (18.5≤BMI<24) , data on physical domain (P<0.001) , mental domain (P< 0.01) and 8 dimensions of HRQOL (physical functioning, mental health, P<0.05; role-physical, bodily pain, general health, vitality, social functioning, role-emotional, P<0.01)among subjects with underweight (BMI<18.5) were significantly lower while mental component summary (P<0.05) of overweight subjects (24≤BMI<28) was significantly higher. Obese subjects (BMI≥28) had worse physical function (physical functioning, P<0.01) but better mental health (mental health, P<0.01; mental component summary, P<0.05). After adjusting for other factors, and compared to middle aged and older adults with normal weight, data on odds ratios (ORs) of impaired HRQOL in physical domain (OR=1.67, 95% CI: 1.35-2.06), mental domain (OR=1.39, 95%CI: 1.13-1.70) and 8 dimensions increased among underweight subjects while ORs of impaired HRQOL in mental domain (0R=0.86,95% CI: 0.78-0.95) and role-physical, vitality, social functioning, role-emotional and mental health dimensions decreased among overweight subjects. ORs increased (OR=1.51,95% CI: 1.27-1.80) in impaired HRQOL in physical functioning dimension but decreased in mental domain (OR=0.71,95%CI: 0.60-0.85) as well as vitality, role-emotional and mental health dimensions among obese subjects. Conclusion HRQOL of each domain were different among middle aged and older adults with different BM1 classification. Underweight people had poor HRQOL in both physical domain and psychological domain, and obese people had poor physical function but good mental health condition.     

中国9省市中老年人群体重指数与健康相关生命质量的关系

Objective To study the association between body mass index (BMI) and the health-related quality of life (HRQOL) in the middle-aged and older Chinese people. Methods Data of 9539 middle-aged and older adults was collected from a cross-sectional survey performed in 9 provinces of China (Jiangsu, Anhui, Gansu, Qinghai, Fujian, Beijing, Jilin, Jiangxi and Henan province). MO SSF-36 was used to measure HRQOL. BMI classification was in accordance with the criteria recommended by the Ministry of Health of China. Rank sum test was used to compare HRQOL between subjects with normal weight and those with different BMI classification. Multiple logistic regression analysis was used to assess the association of HRQOL with BMI after adjusted for sex, age, marital, education, physical activity status and chronic diseases. Results When compared with middle-aged and older adults at normal weight range (18.5≤BMI<24) , data on physical domain (P<0.001) , mental domain (P< 0.01) and 8 dimensions of HRQOL (physical functioning, mental health, P<0.05; role-physical, bodily pain, general health, vitality, social functioning, role-emotional, P<0.01)among subjects with underweight (BMI<18.5) were significantly lower while mental component summary (P<0.05) of overweight subjects (24≤BMI<28) was significantly higher. Obese subjects (BMI≥28) had worse physical function (physical functioning, P<0.01) but better mental health (mental health, P<0.01; mental component summary, P<0.05). After adjusting for other factors, and compared to middle aged and older adults with normal weight, data on odds ratios (ORs) of impaired HRQOL in physical domain (OR=1.67, 95% CI: 1.35-2.06), mental domain (OR=1.39, 95%CI: 1.13-1.70) and 8 dimensions increased among underweight subjects while ORs of impaired HRQOL in mental domain (0R=0.86,95% CI: 0.78-0.95) and role-physical, vitality, social functioning, role-emotional and mental health dimensions decreased among overweight subjects. ORs increased (OR=1.51,95% CI: 1.27-1.80) in impaired HRQOL in physical functioning dimension but decreased in mental domain (OR=0.71,95%CI: 0.60-0.85) as well as vitality, role-emotional and mental health dimensions among obese subjects. Conclusion HRQOL of each domain were different among middle aged and older adults with different BM1 classification. Underweight people had poor HRQOL in both physical domain and psychological domain, and obese people had poor physical function but good mental health condition.     

中国9省市中老年人群体重指数与健康相关生命质量的关系

Objective To study the association between body mass index (BMI) and the health-related quality of life (HRQOL) in the middle-aged and older Chinese people. Methods Data of 9539 middle-aged and older adults was collected from a cross-sectional survey performed in 9 provinces of China (Jiangsu, Anhui, Gansu, Qinghai, Fujian, Beijing, Jilin, Jiangxi and Henan province). MO SSF-36 was used to measure HRQOL. BMI classification was in accordance with the criteria recommended by the Ministry of Health of China. Rank sum test was used to compare HRQOL between subjects with normal weight and those with different BMI classification. Multiple logistic regression analysis was used to assess the association of HRQOL with BMI after adjusted for sex, age, marital, education, physical activity status and chronic diseases. Results When compared with middle-aged and older adults at normal weight range (18.5≤BMI<24) , data on physical domain (P<0.001) , mental domain (P< 0.01) and 8 dimensions of HRQOL (physical functioning, mental health, P<0.05; role-physical, bodily pain, general health, vitality, social functioning, role-emotional, P<0.01)among subjects with underweight (BMI<18.5) were significantly lower while mental component summary (P<0.05) of overweight subjects (24≤BMI<28) was significantly higher. Obese subjects (BMI≥28) had worse physical function (physical functioning, P<0.01) but better mental health (mental health, P<0.01; mental component summary, P<0.05). After adjusting for other factors, and compared to middle aged and older adults with normal weight, data on odds ratios (ORs) of impaired HRQOL in physical domain (OR=1.67, 95% CI: 1.35-2.06), mental domain (OR=1.39, 95%CI: 1.13-1.70) and 8 dimensions increased among underweight subjects while ORs of impaired HRQOL in mental domain (0R=0.86,95% CI: 0.78-0.95) and role-physical, vitality, social functioning, role-emotional and mental health dimensions decreased among overweight subjects. ORs increased (OR=1.51,95% CI: 1.27-1.80) in impaired HRQOL in physical functioning dimension but decreased in mental domain (OR=0.71,95%CI: 0.60-0.85) as well as vitality, role-emotional and mental health dimensions among obese subjects. Conclusion HRQOL of each domain were different among middle aged and older adults with different BM1 classification. Underweight people had poor HRQOL in both physical domain and psychological domain, and obese people had poor physical function but good mental health condition.     

中国9省市中老年人群体重指数与健康相关生命质量的关系

Objective To study the association between body mass index (BMI) and the health-related quality of life (HRQOL) in the middle-aged and older Chinese people. Methods Data of 9539 middle-aged and older adults was collected from a cross-sectional survey performed in 9 provinces of China (Jiangsu, Anhui, Gansu, Qinghai, Fujian, Beijing, Jilin, Jiangxi and Henan province). MO SSF-36 was used to measure HRQOL. BMI classification was in accordance with the criteria recommended by the Ministry of Health of China. Rank sum test was used to compare HRQOL between subjects with normal weight and those with different BMI classification. Multiple logistic regression analysis was used to assess the association of HRQOL with BMI after adjusted for sex, age, marital, education, physical activity status and chronic diseases. Results When compared with middle-aged and older adults at normal weight range (18.5≤BMI<24) , data on physical domain (P<0.001) , mental domain (P< 0.01) and 8 dimensions of HRQOL (physical functioning, mental health, P<0.05; role-physical, bodily pain, general health, vitality, social functioning, role-emotional, P<0.01)among subjects with underweight (BMI<18.5) were significantly lower while mental component summary (P<0.05) of overweight subjects (24≤BMI<28) was significantly higher. Obese subjects (BMI≥28) had worse physical function (physical functioning, P<0.01) but better mental health (mental health, P<0.01; mental component summary, P<0.05). After adjusting for other factors, and compared to middle aged and older adults with normal weight, data on odds ratios (ORs) of impaired HRQOL in physical domain (OR=1.67, 95% CI: 1.35-2.06), mental domain (OR=1.39, 95%CI: 1.13-1.70) and 8 dimensions increased among underweight subjects while ORs of impaired HRQOL in mental domain (0R=0.86,95% CI: 0.78-0.95) and role-physical, vitality, social functioning, role-emotional and mental health dimensions decreased among overweight subjects. ORs increased (OR=1.51,95% CI: 1.27-1.80) in impaired HRQOL in physical functioning dimension but decreased in mental domain (OR=0.71,95%CI: 0.60-0.85) as well as vitality, role-emotional and mental health dimensions among obese subjects. Conclusion HRQOL of each domain were different among middle aged and older adults with different BM1 classification. Underweight people had poor HRQOL in both physical domain and psychological domain, and obese people had poor physical function but good mental health condition.     

Body mass index and health-related quality of life in apparently healthy individuals

Purpose

Obesity is known to be associated with a range of chronic medical comorbidities, but little is known about the impact of overweight and obesity on health-related quality of life (HRQoL) in persons without chronic diseases. The aim of this study was to assess HRQoL, body mass index (BMI) and health behavior patterns in a community sample of subjects who had no long-lasting medical comorbidities

Methods

We assessed HRQoL in 1,187 apparently healthy individuals (mean age 57 ± 7 years), of whom 24 % were classified as normal weight, 49 % as overweight, 20 % as obese and 7 % as very obese. Two different instruments of HRQoL were used: the generic Short-Form Health Survey (SF-36) questionnaire and the preference-based instrument EuroQol (EQ-5D).

Results

All physical components of the SF-36 decreased linearly according to BMI categories in women. In men, only poorer physical functioning scale showed linearity with rising BMI. Scores on the mental components of the SF-36 did not differ by BMI categories in either gender. The EQ-5D index and EuroQol visual analogue scale scores decreased linearly with rising BMI only in women.

Conclusions

In apparently healthy middle-aged subjects, physical HRQoL decreases with increasing level of BMI and more so in women than in men. Mental components of HRQoL do not differ between the categories of BMI in either gender.     

中国9省市中老年人群体重指数与健康相关生命质量的关系

Objective To study the association between body mass index (BMI) and the health-related quality of life (HRQOL) in the middle-aged and older Chinese people. Methods Data of 9539 middle-aged and older adults was collected from a cross-sectional survey performed in 9 provinces of China (Jiangsu, Anhui, Gansu, Qinghai, Fujian, Beijing, Jilin, Jiangxi and Henan province). MO SSF-36 was used to measure HRQOL. BMI classification was in accordance with the criteria recommended by the Ministry of Health of China. Rank sum test was used to compare HRQOL between subjects with normal weight and those with different BMI classification. Multiple logistic regression analysis was used to assess the association of HRQOL with BMI after adjusted for sex, age, marital, education, physical activity status and chronic diseases. Results When compared with middle-aged and older adults at normal weight range (18.5≤BMI<24) , data on physical domain (P<0.001) , mental domain (P< 0.01) and 8 dimensions of HRQOL (physical functioning, mental health, P<0.05; role-physical, bodily pain, general health, vitality, social functioning, role-emotional, P<0.01)among subjects with underweight (BMI<18.5) were significantly lower while mental component summary (P<0.05) of overweight subjects (24≤BMI<28) was significantly higher. Obese subjects (BMI≥28) had worse physical function (physical functioning, P<0.01) but better mental health (mental health, P<0.01; mental component summary, P<0.05). After adjusting for other factors, and compared to middle aged and older adults with normal weight, data on odds ratios (ORs) of impaired HRQOL in physical domain (OR=1.67, 95% CI: 1.35-2.06), mental domain (OR=1.39, 95%CI: 1.13-1.70) and 8 dimensions increased among underweight subjects while ORs of impaired HRQOL in mental domain (0R=0.86,95% CI: 0.78-0.95) and role-physical, vitality, social functioning, role-emotional and mental health dimensions decreased among overweight subjects. ORs increased (OR=1.51,95% CI: 1.27-1.80) in impaired HRQOL in physical functioning dimension but decreased in mental domain (OR=0.71,95%CI: 0.60-0.85) as well as vitality, role-emotional and mental health dimensions among obese subjects. Conclusion HRQOL of each domain were different among middle aged and older adults with different BM1 classification. Underweight people had poor HRQOL in both physical domain and psychological domain, and obese people had poor physical function but good mental health condition.     

中国9省市中老年人群体重指数与健康相关生命质量的关系

Objective To study the association between body mass index (BMI) and the health-related quality of life (HRQOL) in the middle-aged and older Chinese people. Methods Data of 9539 middle-aged and older adults was collected from a cross-sectional survey performed in 9 provinces of China (Jiangsu, Anhui, Gansu, Qinghai, Fujian, Beijing, Jilin, Jiangxi and Henan province). MO SSF-36 was used to measure HRQOL. BMI classification was in accordance with the criteria recommended by the Ministry of Health of China. Rank sum test was used to compare HRQOL between subjects with normal weight and those with different BMI classification. Multiple logistic regression analysis was used to assess the association of HRQOL with BMI after adjusted for sex, age, marital, education, physical activity status and chronic diseases. Results When compared with middle-aged and older adults at normal weight range (18.5≤BMI<24) , data on physical domain (P<0.001) , mental domain (P< 0.01) and 8 dimensions of HRQOL (physical functioning, mental health, P<0.05; role-physical, bodily pain, general health, vitality, social functioning, role-emotional, P<0.01)among subjects with underweight (BMI<18.5) were significantly lower while mental component summary (P<0.05) of overweight subjects (24≤BMI<28) was significantly higher. Obese subjects (BMI≥28) had worse physical function (physical functioning, P<0.01) but better mental health (mental health, P<0.01; mental component summary, P<0.05). After adjusting for other factors, and compared to middle aged and older adults with normal weight, data on odds ratios (ORs) of impaired HRQOL in physical domain (OR=1.67, 95% CI: 1.35-2.06), mental domain (OR=1.39, 95%CI: 1.13-1.70) and 8 dimensions increased among underweight subjects while ORs of impaired HRQOL in mental domain (0R=0.86,95% CI: 0.78-0.95) and role-physical, vitality, social functioning, role-emotional and mental health dimensions decreased among overweight subjects. ORs increased (OR=1.51,95% CI: 1.27-1.80) in impaired HRQOL in physical functioning dimension but decreased in mental domain (OR=0.71,95%CI: 0.60-0.85) as well as vitality, role-emotional and mental health dimensions among obese subjects. Conclusion HRQOL of each domain were different among middle aged and older adults with different BM1 classification. Underweight people had poor HRQOL in both physical domain and psychological domain, and obese people had poor physical function but good mental health condition.     

中国9省市中老年人群体重指数与健康相关生命质量的关系

目的 研究中国中老年人BMI与健康相关生命质量(HRQOL)的关系.方法 汇集9省市(汀苏、安徽、甘肃、青海、福建、北京、吉林、江西、河南)横断面健康状况调查中老年人群数据共9539例.采用秩和检验比较BMI分类不同的中老年人生命质量的差异;用多元logistic回归模型检验排除性别、年龄、婚姻状况、学历、运动水平和慢性病史等混杂因素后,中老年人BMI分类与生命质最的相关性.结果 与体重正常的中老年人相比,体重过轻组SF-36的生理领域(P<0.001)、心理领域(P<0.01)及其8个维度(生理机能、精神健康,P<0.05;生理职能、躯体疼痛、健康状况、精力、社会功能、情感职能,P<0.01)生命质量均显著较差;超重组心理领域生命质量显著较好(P<0.05);肥胖组生理机能维度显著较差(P<0.01),心理领域(P<0.05)、精神健康维度(P<0.01)显著较好.排除已知的混杂因素后,体重过轻组在生理领域(OR=1.67,95%CI:1.35～2.06)、心理领域(OR=1.39,95%CI:1.13～1.70)以及所有8个维度生命质量减损的危险度显著增高;超重组心理领域(OR=0.86,95%CI:0.78～0.95)及其生理职能、精力、社会功能、情感职能、精神健康维度生命质最受损的危险度显著降低;肥胖组生理机能维度(OR=1.51,95%CI:1.27～1.80)受损的危险度显著增高,心理领域(OR=0.71,95%CI:0.60～0.85)及其精力、情感职能、精神健康维度生命质量受损的危险度显著降低.结论 BMI分类不同的中老年人其SF-36各领域生命质量不同,体重过轻组生理领域和心理领域生命质量均较差,超重和肥胖组心理领域生命质最较好,肥胖组生理领域生命质量较差.超重和肥胖的中老年人生命质量的减损与慢性疾病有关.     

中国9省市中老年人群体重指数与健康相关生命质量的关系

Objective To study the association between body mass index (BMI) and the health-related quality of life (HRQOL) in the middle-aged and older Chinese people. Methods Data of 9539 middle-aged and older adults was collected from a cross-sectional survey performed in 9 provinces of China (Jiangsu, Anhui, Gansu, Qinghai, Fujian, Beijing, Jilin, Jiangxi and Henan province). MO SSF-36 was used to measure HRQOL. BMI classification was in accordance with the criteria recommended by the Ministry of Health of China. Rank sum test was used to compare HRQOL between subjects with normal weight and those with different BMI classification. Multiple logistic regression analysis was used to assess the association of HRQOL with BMI after adjusted for sex, age, marital, education, physical activity status and chronic diseases. Results When compared with middle-aged and older adults at normal weight range (18.5≤BMI<24) , data on physical domain (P<0.001) , mental domain (P< 0.01) and 8 dimensions of HRQOL (physical functioning, mental health, P<0.05; role-physical, bodily pain, general health, vitality, social functioning, role-emotional, P<0.01)among subjects with underweight (BMI<18.5) were significantly lower while mental component summary (P<0.05) of overweight subjects (24≤BMI<28) was significantly higher. Obese subjects (BMI≥28) had worse physical function (physical functioning, P<0.01) but better mental health (mental health, P<0.01; mental component summary, P<0.05). After adjusting for other factors, and compared to middle aged and older adults with normal weight, data on odds ratios (ORs) of impaired HRQOL in physical domain (OR=1.67, 95% CI: 1.35-2.06), mental domain (OR=1.39, 95%CI: 1.13-1.70) and 8 dimensions increased among underweight subjects while ORs of impaired HRQOL in mental domain (0R=0.86,95% CI: 0.78-0.95) and role-physical, vitality, social functioning, role-emotional and mental health dimensions decreased among overweight subjects. ORs increased (OR=1.51,95% CI: 1.27-1.80) in impaired HRQOL in physical functioning dimension but decreased in mental domain (OR=0.71,95%CI: 0.60-0.85) as well as vitality, role-emotional and mental health dimensions among obese subjects. Conclusion HRQOL of each domain were different among middle aged and older adults with different BM1 classification. Underweight people had poor HRQOL in both physical domain and psychological domain, and obese people had poor physical function but good mental health condition.     

中国9省市中老年人群体重指数与健康相关生命质量的关系

Objective To study the association between body mass index (BMI) and the health-related quality of life (HRQOL) in the middle-aged and older Chinese people. Methods Data of 9539 middle-aged and older adults was collected from a cross-sectional survey performed in 9 provinces of China (Jiangsu, Anhui, Gansu, Qinghai, Fujian, Beijing, Jilin, Jiangxi and Henan province). MO SSF-36 was used to measure HRQOL. BMI classification was in accordance with the criteria recommended by the Ministry of Health of China. Rank sum test was used to compare HRQOL between subjects with normal weight and those with different BMI classification. Multiple logistic regression analysis was used to assess the association of HRQOL with BMI after adjusted for sex, age, marital, education, physical activity status and chronic diseases. Results When compared with middle-aged and older adults at normal weight range (18.5≤BMI<24) , data on physical domain (P<0.001) , mental domain (P< 0.01) and 8 dimensions of HRQOL (physical functioning, mental health, P<0.05; role-physical, bodily pain, general health, vitality, social functioning, role-emotional, P<0.01)among subjects with underweight (BMI<18.5) were significantly lower while mental component summary (P<0.05) of overweight subjects (24≤BMI<28) was significantly higher. Obese subjects (BMI≥28) had worse physical function (physical functioning, P<0.01) but better mental health (mental health, P<0.01; mental component summary, P<0.05). After adjusting for other factors, and compared to middle aged and older adults with normal weight, data on odds ratios (ORs) of impaired HRQOL in physical domain (OR=1.67, 95% CI: 1.35-2.06), mental domain (OR=1.39, 95%CI: 1.13-1.70) and 8 dimensions increased among underweight subjects while ORs of impaired HRQOL in mental domain (0R=0.86,95% CI: 0.78-0.95) and role-physical, vitality, social functioning, role-emotional and mental health dimensions decreased among overweight subjects. ORs increased (OR=1.51,95% CI: 1.27-1.80) in impaired HRQOL in physical functioning dimension but decreased in mental domain (OR=0.71,95%CI: 0.60-0.85) as well as vitality, role-emotional and mental health dimensions among obese subjects. Conclusion HRQOL of each domain were different among middle aged and older adults with different BM1 classification. Underweight people had poor HRQOL in both physical domain and psychological domain, and obese people had poor physical function but good mental health condition.     

中国9省市中老年人群体重指数与健康相关生命质量的关系

Objective To study the association between body mass index (BMI) and the health-related quality of life (HRQOL) in the middle-aged and older Chinese people. Methods Data of 9539 middle-aged and older adults was collected from a cross-sectional survey performed in 9 provinces of China (Jiangsu, Anhui, Gansu, Qinghai, Fujian, Beijing, Jilin, Jiangxi and Henan province). MO SSF-36 was used to measure HRQOL. BMI classification was in accordance with the criteria recommended by the Ministry of Health of China. Rank sum test was used to compare HRQOL between subjects with normal weight and those with different BMI classification. Multiple logistic regression analysis was used to assess the association of HRQOL with BMI after adjusted for sex, age, marital, education, physical activity status and chronic diseases. Results When compared with middle-aged and older adults at normal weight range (18.5≤BMI<24) , data on physical domain (P<0.001) , mental domain (P< 0.01) and 8 dimensions of HRQOL (physical functioning, mental health, P<0.05; role-physical, bodily pain, general health, vitality, social functioning, role-emotional, P<0.01)among subjects with underweight (BMI<18.5) were significantly lower while mental component summary (P<0.05) of overweight subjects (24≤BMI<28) was significantly higher. Obese subjects (BMI≥28) had worse physical function (physical functioning, P<0.01) but better mental health (mental health, P<0.01; mental component summary, P<0.05). After adjusting for other factors, and compared to middle aged and older adults with normal weight, data on odds ratios (ORs) of impaired HRQOL in physical domain (OR=1.67, 95% CI: 1.35-2.06), mental domain (OR=1.39, 95%CI: 1.13-1.70) and 8 dimensions increased among underweight subjects while ORs of impaired HRQOL in mental domain (0R=0.86,95% CI: 0.78-0.95) and role-physical, vitality, social functioning, role-emotional and mental health dimensions decreased among overweight subjects. ORs increased (OR=1.51,95% CI: 1.27-1.80) in impaired HRQOL in physical functioning dimension but decreased in mental domain (OR=0.71,95%CI: 0.60-0.85) as well as vitality, role-emotional and mental health dimensions among obese subjects. Conclusion HRQOL of each domain were different among middle aged and older adults with different BM1 classification. Underweight people had poor HRQOL in both physical domain and psychological domain, and obese people had poor physical function but good mental health condition.     

Self-reported body mass index and health-related quality of life: findings from the Behavioral Risk Factor Surveillance System

OBJECTIVE: To examine the relationship between self-reported body mass index (BMI) and health-related quality of life in the general adult population in the United STATES: RESEARCH METHODS AND PROCEDURES: Using data from 109,076 respondents in the 1996 Behavioral Risk Factor Surveillance System, we examined how self-reported BMI is associated with five health-related quality of life measures developed by the Centers for Disease Control and Prevention for population health surveillance. RESULTS: After adjusting for age, gender, race or ethnicity, educational attainment, employment status, smoking status, and physical activity status, participants with a self-reported BMI of <18.5 kg/m(2) and participants with a self-reported BMI of > or =30 kg/m(2) reported impaired quality of life. Compared with persons with a self-reported BMI of 18.5 to <25 kg/m(2), odds ratios (ORs) of poor or fair self-rated health increased among persons with self-reported BMIs of <18.5 (1.57, 95% confidence interval [CI]: 1.31 to 1.89), 25 to <30 kg/m(2) (1.12, 95% CI: 1.04 to 1.20), 30 to <35 kg/m(2) (1.65, 95% CI: 1.50 to 1.81), 35 to <40 kg/m(2) (2.58, 95% CI: 2.21 to 3.00), and > or =40 kg/m(2) (3.23, 95% CI: 2.63 to 3.95); ORs for reporting > or =14 days of poor physical health during the previous 30 days were 1.44 (95% CI: 1.21 to 1.72), 1.04 (95% CI: 0.96 to 1.14), 1.32 (95% CI: 1.19 to 1.47), 1.80 (95% CI: 1.52 to 2.13), and 2.37 (95% CI: 1.90 to 2.94), respectively; ORs for having > or =14 days of poor mental health during the previous 30 days were 1.18 (95% CI: 0.97 to 1.42), 1.02 (95% CI: 0.95 to 1.11), 1.22 (95% CI: 1.10 to 1.36), 1.68 (95% CI: 1.42 to 1.98), and 1.66 (95% CI: 1.32 to 2.09), respectively. DISCUSSION: In the largest study to date, low and increased self-reported BMI significantly impaired health-related quality of life. Particularly, deviations from normal BMI affected physical functioning more strongly than mental functioning.     

The relationship between body image discrepancy and body mass index across ethnic groups

OBJECTIVE: This study sought to examine at what body mass index (BMI) body image discrepancy (BD) was reported in a community sample of 389 white, Hispanic, and black women. In addition, we assessed the trajectory of the BMI-BD relationship as BMI increases by ethnic group. RESEARCH METHODS AND PROCEDURES: All participants were assessed on height and weight and completed the Figure Rating Scale. RESULTS: We found no difference in the proportion of women in each ethnic group reporting BD. However, white women experienced BD at a lower BMI level (BMI = 24.6), and below the criterion for overweight (BMI = 25). In contrast, black and Hispanic women did not report BD until they were overweight (BMIs of 29.2 and 28.5, respectively). Compared with black and white women, Hispanic women registered increases in BD at smaller increases in BMI. DISCUSSION: These findings could have unhealthful implications for weight control behavior. The results encourage a closer look at ethnicity and BD, and their relationship to obesity and weight control.