新疆饮食特点食物频率问卷信度和效度评价

目的对自行设计的食物频率问卷信度和效度进行评价,为饮食习惯与慢性疾病关联性的研究提供一个简便、可靠的测量工具。方法 2018年9月,以自愿参与的形式招募118名乌鲁木齐市居民,通过自行设计的食物频率问卷结合连续3天24 h膳食记录,了解调查对象膳食摄入水平。对调查对象进行第1次食物频率问卷调查后,间隔4周再进行第2次相同的食物频率问卷调查,比较前后2次调查结果所得能量与各营养素的相关性检验问卷的信度;对同一调查对象在进行第1次食物频率问卷调查之后,用连续3天24 h膳食记录法作为对照,进行效度检验。结果 (1)信度研究中,总能量和各营养素摄入量均呈显著正相关,Pearson相关系数在0.431(锰)和0.988(维生素A)之间,平均相关系数为0.775。(2)效度研究中,食物频率问卷与连续3天24 h膳食记录膳食调查所得总能量和营养素摄入量呈显著正相关,Pearson相关系数在0.312(硫胺素)和0.993(锌)之间,平均值为0.627。(3)在一致率分析中,膳食营养素的信度一致率为96%,膳食营养素的效度一致率为100%。结论所制订的膳食食物频率问卷具有较好的信度和效度,可用于膳食营养与慢性病相关性研究。     

成都地区老年人群的简化膳食频率问卷信度和效度评价

目的 编制适用于成都地区老年人群的简化膳食频率问卷(Simplified Food Frequency Questionnaire,SFFQ),并评价SFFQ的信度和效度。方法 以2014年12月四川省人民医院健康体检中心老年人为研究对象,其中78人完成了两次SFFQ,92人完成了一次SFFQ和3天24小时膳食记录(3d24h DR)的调查。结果 信度研究中,两次调查的能量及营养素摄入量由原始数据计算的Pearson相关系数为0.499~0.835,平均值为0.668,经对数转换、 能量校正的相关系数平均值分别为0.701、0.592;效度研究中,以原始数据计算的Pearson相关系数均在 0.443~0.644之间,平均值为0.539。经对数转换、能量校正所得Pearson 相关系数平均值分别为0.578、0.473。结论 SFFQ具有较好的信度和效度,可用于调查成都地区老年人群的慢性病与食物摄入之间的关系。     

老年人膳食钙摄入的食物频率问卷的信度与效度评价

目的研制老年人膳食钙摄入的食物频率问卷。方法采用连续3 d 24 h膳食回顾法与膳食钙摄入的食物频率问卷进行对照,计算钙摄入含量。并对该问卷进行信度、效度考评。结果老年人膳食钙摄入的食物频率问卷重测信度系数为0.931。食物频率问卷所测得的钙摄入平均值为(238.9±26.73)mg/d,连续3 d 24 h膳食回顾法所测得钙摄入平均值为(260.7±28.33)mg/d,两种方法获得的钙摄入量差异无统计学意义(t=0.89,P>0.05)。结论老年人膳食钙摄入的食物频率问卷具有较好的信度和效度。     

食物频率问卷法评估人群膳食营养素摄入量的相对效度研究

目的 以称重记录法结合24 h回顾法为参考方法,评估食物频率问卷法(FFQ)应用于调查人群膳食营养素和食物摄入量的相对效度。方法 采用随机抽样的方法在上海市抽取闵行区和金山区居民作为调查对象。使用称重法结合24 h膳食回顾法与食物频率问卷法对调查对象进行膳食调查,并以称重法结合24 h膳食回顾法作为标准,采用t检验,Wilcoxon秩和检验及相关系数检验对食物频率问卷所得数据进行统计分析。结果 FFQ和24 h回顾调查2种方法食用的食物大类相同,获得的谷类、豆类及其制品、蔬菜、十字花科蔬菜、水果、肉禽水产类以及奶及奶制品的每日摄入量有相关性(相关系数0.248~1.000)。FFQ和24 h回顾调查2种方法获得的能量、蛋白质、脂肪、碳水化合物、胆固醇每日摄入量均呈显著正相关(相关系数0.209~0.340),其中能量与脂肪无统计学差异;镁、钾、磷、锰、碘、钙与硒每日摄入量呈显著正相关(相关系数0.204~0.419),其中镁、钾、磷、锰、碘元素无统计学差异;维生素B1、B2、C、烟酸每日摄入量均呈显著正相关(相关系数0.170~0.305),其中维生素B1、B2无统计学差异。结论 食物频率问卷可以评估碘元素、十字花科蔬菜、大豆异黄酮以及能量、脂肪、镁、钾、磷、锰、维生素B1和维生素B2摄入量。     

应用于膳食模式研究的简化膳食频率问卷信度和效度评价

目的评价应用于膳食模式研究的简化膳食频率问卷的信度和效度。方法对94名40～80岁上海市社区居民进行了两次简化膳食频率问卷(FFQ25)、一次完整膳食频率问卷(FFQ146)和一次3d24h膳食纪录(DR)的调查。FFQ25的重测信度以间隔2 w的两次食物摄入量比较和相关系数进行评价。FFQ25的效度以FFQ25与FFQ146、FFQ25与DR的食物摄入量和膳食模式分析结果进行评价。结果前后两次FFQ25的食物摄入量差别无统计学意义(P>0.05),相关系数在0.56～0.87(P<0.01)。FFQ25与FFQ146、DR食物摄入量的相关系数为0.31～0.72(P<0.01),膳食模式因子负荷相关系数为0.54～0.77(P<0.01)。膳食模式因子积分的Bland-Altman分析表明FFQ25与FFQ146、FFQ25与DR的因子积分具有较好的一致性。结论 FFQ25具有较好的重测信度和膳食模式分析效度,且简单方便,可用于调查城市中老年人群的膳食模式研究。     

广州地区食物频率问卷信度和效度研究

目的对广州地区人群营养与慢性病研究中使用的食物频率问卷(food frequency questionnaire,FFQ)进行信度和效度研究。方法间隔2～5周进行两次FFQ调查,比较两次结果的相关性,检验问卷的信度。在3个月内进行3次三日膳食回顾和1次FFQ调查,用3次三日膳食回顾的平均结果与FFQ的相关性分析结果评价FFQ的内容效度。结果 (1)信度研究中膳食能量和10种营养素均为显著性正相关,以原始数值计算的相关系数(r)为0.379～0.740,平均值为0.609;经自然对数转换后的平均r为(0.589±0.123);校正能量后平均r为(0.511±0.139)。(2)效度研究中FFQ与三日膳食回顾法的膳食能量和10种营养素均为显著正相关,以原始数值计算的r为0.318～0.782,平均值0.439;自然对数转换后的平均r为(0.448±0.122);校正能量后平均r为(0.427±0.132)。(3)食物和营养素的信度研究一致率分别为70.3%和100.0%,营养素的效度一致率为100.0%。结论所制订的广州地区FFQ具有较好的信度和效度,是研究广州市人群营养与慢性病关系较为理...     

孤独症儿童营养及饮食行为问题干预的追踪研究

目的 探讨以IMFeD策略为主的综合干预对孤独症儿童营养素摄入、饮食行为问题以及对孤独症儿童家长营养及饮食相关知识知晓的干预效果。方法 随机选择孤独症儿童49例, 采用24 h膳食回顾法评估患儿营养素摄入情况, 自拟问卷完成儿童饮食及相关行为问题调查。通过对基线调查、3个月随访以及6个月终期调查结果的统计分析, 评价IMFeD对孤独症儿童营养素摄入、饮食行为问题以及家长饮食知识知晓的干预效果。结果 干预完成后, 孤独症儿童饮食行为问题中胃口差、食物偏好、不良进食习惯和家长的不良喂养行为均减少(均为P<0.05);家长营养及饮食知识知晓率由61.3%提升至77.5%;孤独症儿童能量、维生素C、钠、蛋白质、维生素B₆、磷、钾、硫胺素和叶酸的摄入水平有显著改善(P均<0.05)。结论 以IMFeD干预策略为主的综合干预手段对改善孤独症儿童的膳食营养素摄入、减少其饮食行为问题、提高家长正确营养及饮食知识知晓率均有明显作用。     

农村0～5岁留守儿童的膳食营养调查

目的:了解农村0～5岁留守儿童膳食营养状况,为制定科学的膳食指导方法及保健措施提供依据。方法:采用24h膳食回顾法及食物频率法连续调查留守儿童3天膳食情况,计算能量、蛋白质等营养素摄入量;测量身高、体重及血红蛋白含量,采用Z评分法进行生长发育评价并统计贫血患病率。结果:留守儿童能量、蛋白质、钙、钾、铁、锌、VitA、VitB1、VitC平均摄入量达不到RNIs的80%;生长迟缓率7.44%、低体重率4.21%、贫血患病率为15.21%。结论:留守儿童能量、蛋白质、钙等营养素摄入不足,影响正常生长发育,应对农村留守儿童进行膳食指导。     

中国孕妇及儿童青少年食物频率问卷信效度系统综述

目的 系统性梳理我国孕妇及儿童青少年食物频率问卷（food frequency questionnaire, FFQ）的信效度研究现状。方法 基于中国知网、万方数据知识服务平台、维普期刊、PubMed、Embase数据库,系统检索截至2022年4月6日发表的关于中国孕妇及儿童青少年FFQ的信效度研究。对文献进行筛选评价,分析研究基本特征及整体信效度。结果 共纳入12篇文献（孕妇组、儿童青少年组各6篇）,样本量范围为100~405名,FFQ食物清单数目范围为63~172项。大多数研究缺乏针对FFQ设计、实施及数据处理标准化流程的详细说明。经质量评价,6篇评价为质量好,4篇中等,2篇较差。 FFQ信度均值范围:孕妇组为0.32~0.45（食物组）和0.29~0.71（营养素）;儿童青少年组为0.40~0.53（食物组）和0.34~0.66（营养素）。FFQ对比金标准（包括24小时膳食回顾或膳食记录法）的效度均值范围:孕妇组为0.34~0.43（食物组）和0.16~0.69（营养素）,其中禽肉、鱼类和叶酸的效度较低（＜0.30）;儿童青少年组为0.21~0.60（食物组）和0.29~0.85（营养素）,其中鱼类和坚果的效度较低（＜0.30）。结论 中国孕妇及儿童青少年FFQ的信效度水平存在一定差异,部分FFQ的平均信效度能达到中等及较高水平,个别营养素和食物组的效度较低。此外,FFQ应用的规范化标准流程仍需完善与统一,不同地区人群流行病学研究及临床研究中FFQ的应用及推广有待进一步的优化。     

学龄前儿童饮食行为量表的编制与评价

【目的】 编制学龄前儿童饮食行为评价量表,为我国儿童饮食行为评价和相关研究提供基本工具。 【方法】 广泛查阅国内、外有关文献形成152问题的条目库,结合5名儿科临床和25名儿童家长意见,经2次测试和分析后形成“学龄前儿童饮食行为试用问卷”。通过对325名学龄前儿童的调查,采用因子分析和条目分析方法对试用问卷的条目进行了筛选,最终形成了包括56个条目的学龄前儿童饮食行为评价量表。在西安市5所幼儿园随机抽取603名3~6岁儿童家长进行调查,采用因子分析、相关分析等对量表的信度、效度、反应度进行检验。 【结果】 量表由56个条目组成,包括不良进食习惯、偏食、食物喜好、情绪性进食、过饱响应、食物响应、外因性进食、主动进食8个维度,累计方差贡献率达50.9%;验证性因子分析各指标均达到统计学要求。量表Cronbach's α系数为0.92,分半信度系数为0.86,重测信度系数为0.72。不良进食习惯、挑食、情绪性进食、过饱响应和食物响应5个维度得分在不同体重组间差异有统计学意义(P<0.05);不良进食习惯、挑食、食物喜好、外因性进食4个维度得分在不同文化程度家长间差异均有统计学意义(P<0.05)。 【结论】 学龄前儿童饮食行为量表具有良好信度和效度,8个维度能较为全面地反映学龄前儿童饮食行为特点。     

Validity and Calibration of Food Frequency Questionnaires Used with African-American Adults in the Jackson Heart Study

Objective

To examine the relative validity of two food frequency questionnaires (FFQs) developed for use in investigating diet and disease relationships within the adult African-American population in the southern United States.

Design

Cross-sectional analyses of dietary nutrient intake data, comparing four 24-hour dietary recalls with an FFQ developed by the Lower Mississippi Delta Nutrition Intervention Research Initiative, and its shorter version adapted for use in the Jackson Heart Study.

Subjects

A representative subset of participants (n=499, aged 35 to 81 years) from the baseline Jackson Heart Study cohort (N=5,302) was selected for this study. Data collection took place between winter 2000 and spring 2004.

Statistical analyses

Pearson's correlation coefficients (energy adjusted and de-attenuated) for 26 nutrients estimates from each of the FFQs, comparing them with the mean of four 24-hour dietary recalls. The ability of the FFQs to rank individuals based on nutrient intakes was compared to that of the mean of four 24-hour dietary recalls and attenuation coefficients were also calculated.

Results

Median nutrient intake estimates tended to be higher on the long and lower on the short FFQ compared to the median for the mean of four 24-hour dietary recalls. Energy adjusted and deattenuated correlations of FFQ intake estimates with recalls ranged from 0.20 for sodium to 0.70 for carbohydrate for the short FFQ and from 0.23 for polyunsaturated fat to 0.75 for dietary fiber and magnesium for the long. Attenuation coefficients for men on average were 0.42 for the short and 0.49 for the long FFQ. For women, these were 0.31 for the short and 0.42 for the long FFQ.

Conclusions

Both FFQs appear to be reasonably valid for assessment of dietary intake of adult African Americans in the South. The Lower Mississippi Delta Nutrition Intervention Research Initiative FFQ exhibited higher intake estimates and stronger correlations with recalls than the Jackson Heart Study FFQ for most nutrients analyzed, more so for women than men.     

云锡矿工食物频率问卷的信度和效度研究

本文研究了云锡矿工肺癌高危人群普查中所使用的食物频率问卷的信度和效度。信度研究是将间隔一年的食物频率问卷资料相比较做相关分析;效度研究是以１９９５年四季２８天２４小时饮食回顾调查资料为标准,将食物频率问卷资料调查结果与其比较做相关分析。以一致率来评价膳食调查工具的可靠程度。     

Validity and reproducibility of a semi-quantitative food frequency questionnaire for use among pregnant women in rural China

A longitudinal study was conducted to validate a 68-item semi-quantitative food-frequency questionnaire (FFQ) for assessing nutrient intake among pregnant women in rural China. The interview administrated FFQs were conducted at the start of the third trimester (FFQ1) and repeated three months later prior to delivery (FFQ2), and compared with six repeated 24-hour recalls collected between the FFQs. From June to September 2004, 125 women at 23 to 26 weeks of gestation were recruited into the study in two rural counties in Shaanxi province, China. Pearson correlation coefficients for crude nutrients assessed by FFQ1 and FFQ2 had a mean of 0.46, and ranged from 0.31 for thiamin to 0.61 for fat. Pearson correlation coefficients estimated by FFQ2 and 24-hour recalls had a mean of 0.62 for all nutrients, and ranged from 0.53 for cholesterol and carotene to 0.70 for alpha-vitamin E and potassium. De-attenuated coefficients had a mean of 0.69 for all nutrients, and ranged from 0.58 for cholesterol to 0.77 for alpha- vitamin E. Bland-Altman plots revealed significant relationships between the difference and the average of the two methods with larger differences at higher average intakes. On average, 74% of participants were classified into the same or adjacent nutrient intake quintiles, while 1% were grossly misclassified to opposite quintiles. In conclusion, this FFQ has adequate reproducibility and validity for most nutrients but would benefit from the addition of wheat porridge to ensure it is suitable for assessing dietary intake in pregnant women in rural China.     

Relative Validity and Reproducibility of a Food Frequency Questionnaire to Assess Food Group Intake in Pregnant Jordanian Women

BackgroundResearch on the relationship between maternal diet and pregnancy outcomes requires valid dietary assessment tools in pregnancy.ObjectiveThis study aimed to develop and examine the relative validity and reproducibility of a quantitative food frequency questionnaire (FFQ) to estimate food group intake in a sample of pregnant Jordanian women.DesignIn this validation study, food group intake from a culturally sensitive quantitative FFQ was compared with food group intake from three 24-hour dietary recalls.Participants and settingThe validation study was conducted from 2015 to 2017 at the maternity clinics in Jordan University Hospital among 131 healthy singleton pregnant Jordanian women. Of these women, 30 also took part in the reproducibility phase, which involved repeated completion of the FFQ in a time frame of 1 month. Pregnant women who had gestational diabetes, preeclampsia, and chronic diseases were excluded.Main outcome measuresRelative validity and reproducibility of a 117-item quantitative FFQ used to estimate usual food intake over a period of 1 month.Statistical analyses performedIntraclass correlation coefficients and weighted κ statistics were calculated to test the reproducibility between the two administrations of the FFQ. Pearson correlations were estimated to validate the FFQ against 24-hour dietary recalls. Cross-classification and Bland-Altman plots were used to examine the agreement between the two dietary assessment methods.ResultsThe intraclass correlation coefficients between the two FFQs ranged from 0.24 for legumes to 0.93 for processed meats. A moderate level of agreement was observed between two FFQs. De-attenuated and energy-adjusted correlations ranged from 0.08 for sweets and sugar to 0.93 for sugary drinks. On average, 50.9% and 45.2% of participants were classified by the FFQ and the 24-hour dietary recalls into the same quartile based on their crude and energy-adjusted food group intake, respectively. Bland-Altman plots showed satisfactory agreement between two methods for most food groups.ConclusionsThe FFQ showed moderate reproducibility and good relative validity for most food groups.     

Validity and reliability of an omega-3 fatty acid food frequency questionnaire for first-generation Midwestern Latinas

This study tested the hypothesis that a culturally developed omega-3 (n-3) fatty acid food frequency questionnaire (FFQ) could be an accurate instrument to capture n-3 fatty acid food intakes of first-generation Midwestern Latinas. The goal of the study was to assess validity and test-retest reliability of an FFQ to estimate total n-3 fatty acid (total n-3), α-linolenic acid (ALA), eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA) intakes. An n-3 FFQ was developed and pilot tested. Two FFQs and 3 nonconsecutive 24-hour recalls were collected from 162 participants. Pearson correlation and paired t test were used to test the hypothesis. Correlation of the 2 FFQs was 0.71 for total n-3, 0.65 for ALA, 0.74 for EPA, and 0.54 for DHA (P < .01). The means of the 2 FFQs and of the 24-hour recalls were not significantly different for total n-3 and ALA (P > .05), but were significantly different for EPA and DHA. The n-3 FFQ had acceptable reliability, validated only total n-3 and ALA, and provided relevant findings about the n-3 eating habits of Midwestern Latinas.     

Validation of three food frequency questionnaires and 24-hour recalls with serum carotenoid levels in a sample of African-American adults

The validity of self-reported fruit and vegetable intake in minority populations has not been adequately established. In this study, the authors examined the association of three food frequency questionnaires (FFQs) and 24-hour dietary recalls with serum carotenoid levels. Approximately 1,000 African-American adults recruited from 15 churches in Atlanta, Georgia (1997-1998) completed three fruit and vegetable FFQs: a seven-item instrument assessing intake during the past month; a two-item measure assessing usual intake; and a 36-item measure adapted from the Health Habits and History Questionnaire. A total of 414 participants received a 24-hour recall by telephone, and 105 of them received two additional recalls. Serum levels of lycopene, lutein, cryptoxanthin, alpha-carotene, and beta-carotene were assessed in 813 participants and used as the validity criterion. The correlations of fruit and vegetable servings with specific and total serum carotenoid levels were generally higher for the 36-item FFQ than for the two-item and seven-item instruments. The strongest correlation of fruit and vegetable servings with total carotenoid levels was observed for the three recalls (r = 0.42), with the 36-item FFQ and the single 24-hour recall yielding comparable correlations (r = 0.35 and r = 0.37, respectively). The validity of the 36-item fruit and vegetable FFQ was generally as strong as the validity of both 1 and 3 days of recalls. Given the lower cost and time needed for administration relative to recalls, it appears that the 36-item FFQ has merit for evaluating fruit and vegetable health interventions.     

Reliability and relative validity of a food frequency questionnaire for Italian adults living in Sicily,Southern Italy

The aim of this study was to develop and test the reliability and relative validity of a food frequency questionnaire (FFQ) specifically developed for individuals living in Sicily, southern Italy. This study was conducted on a convenient sample of 178 adult volunteers aged 18–80 years recruited in the urban population of Catania. Dietary intake estimated by 2 FFQs was compared with six 24-h recalls covering a period of 10 months. A total of 110 food items were included in the FFQ. Person’s coefficients between the first FFQ and mean of the six 24-h recalls showed high correlations for coffee, tea, pasta and dairy products, alcohol, total fats and carbohydrates (in women). The test–retest analysis showed high reproducibility of the FFQ. We showed that our FFQ provided a useful estimate of both food and nutrient intake in a healthy adult population.     

西安市50岁以上居民食物频率问卷准确性及重现性研究

目的对用于评价西安城区居民膳食营养状况的西安食物频率问卷(FFQ)的重现性和准确性进行食物组的研究。方法在西安城区随机抽取出125名50～80岁当地居民,共完成6轮的食物摄入情况的调查,其中4轮24小时膳食回顾调查(24HDRs)的结果作为参考,通过第一轮FFQ结果与第二轮FFQ以及4轮24HDRs结果之间的比较分别进行FFQ的重现性和准确性研究。结果各个食物组在两轮FFQ间的Spearman相关系数在0.38(糕点类)～0.74(茶类)。第二轮FFQ与4轮24HDRs均值间的相关系数在0.12～0.74之间,经过个体内方差校正后,相关系数均有所提高。结论西安食物频率问卷可以相对准确、可靠地评价西安城区50岁以上居民的膳食营养状况。     

Reproducibility and validity of an interviewer-administered semi-quantitative food frequency questionnaire to assess dietary intake of urban adults in southern India

We report on the reproducibility and validity of a food frequency questionnaire (FFQ) developed for southern India. One hundred and two adult subjects aged > or =20 years drawn from the Chennai Urban Rural Epidemiology Study participated. The FFQ was developed based on local foods and habits, and was administered three times at 0, 6 and 12 month periods (called FFQ1, FFQ2 and FFQ3) to assess the reproducibility. To test the validity of the FFQ, multiple 24-h recalls collected at 2-monthly intervals for a period of 1 year and the estimated energy intake/basal metabolic rate (EI/BMR) ratio were used. The 'EpiNu' in-house food and nutrient database was used to compile dietary intakes, which were analyzed for statistical analysis. The intraclass correlation coefficient for all three FFQs ranged from 0.72 for carbohydrates to 0.45 for folate. The de-attenuated Pearson correlation for the energy adjusted nutrients between FFQ3 and 24-h recalls ranged from 0.73 for carbohydrates to 0.35 for calcium. Bland and Altman plots for energy intake between the two methods showed the limits of agreement ranged from 768 to -1358 calories/day (+/-2 standard deviations). Misclassification was low for most of the nutrients. Under-reporting of the energy intake (EI/BMR ratio<1.2) was higher in females than males. This FFQ appears to be a robust tool to measure dietary intakes in southern India.     

Reproducibility and validity of an interviewer-administered semi-quantitative food frequency questionnaire to assess dietary intake of urban adults in southern India

We report on the reproducibility and validity of a food frequency questionnaire (FFQ) developed for southern India. One hundred and two adult subjects aged ≥20 years drawn from the Chennai Urban Rural Epidemiology Study participated. The FFQ was developed based on local foods and habits, and was administered three times at 0, 6 and 12 month periods (called FFQ1, FFQ2 and FFQ3) to assess the reproducibility. To test the validity of the FFQ, multiple 24-h recalls collected at 2-monthly intervals for a period of 1 year and the estimated energy intake/basal metabolic rate (EI/BMR) ratio were used. The ‘EpiNu’ in-house food and nutrient database was used to compile dietary intakes, which were analyzed for statistical analysis. The intraclass correlation coefficient for all three FFQs ranged from 0.72 for carbohydrates to 0.45 for folate. The de-attenuated Pearson correlation for the energy adjusted nutrients between FFQ3 and 24-h recalls ranged from 0.73 for carbohydrates to 0.35 for calcium. Bland and Altman plots for energy intake between the two methods showed the limits of agreement ranged from 768 to ?1358 calories/day (±2 standard deviations). Misclassification was low for most of the nutrients. Under-reporting of the energy intake (EI/BMR ratio<1.2) was higher in females than males. This FFQ appears to be a robust tool to measure dietary intakes in southern India.