湖南白族少年儿童体型特征

目的探讨湖南白族少年儿童体型发育特征及其规律。方法采用Heath-Carter体型法对1525例(男性748例,女性777例)湖南白族少年儿童的体型进行评价。结果男性中因子值大于女性,内因子值小于女性;男性体型以中胚层、外胚层为主,女性体型以中间型、外胚层为主;随着年龄增长,男性由均衡的中胚层体型、偏外胚层的中胚层体型、中胚层-外胚层均衡体型、偏中胚层的外胚层体型发展为中胚层-外胚层均衡体型。女性由中间型、均衡的外胚层体型、中间型、内胚层-中胚层均衡体型发展为偏中胚层的内胚层体型。结论白族少年儿童男女性的体型发育存在着差异,男性身体线性程度相对较高,肌肉发达;女性脂肪含量较多、线性度较差。与蒙古族等群体比较,白族学生脂肪含量较少,身材矮小,肌肉不发达。     

Perceived Discriminatory Factors that Impact Prenatal Care Satisfaction and Attendance Among Adolescent and Young Adult Couples

ObjectiveTo identify possible discriminatory factors that lead to prenatal care dissatisfaction and disengagement from prenatal care among young, expecting couples with a focus on exploring the experiences of Black and Latinx participants.MethodsA total of 296 young adolescent couples were recruited. Each couple consisted of an expecting female (ExpF) and an expecting male (ExpM). Participants were asked to give responses to a survey, and data was collected at 3 different time points.ParticipantsThe sample consisted of 296 expecting young couples.SettingParticipants were recruited from obstetrics and gynecology clinics and ultrasound clinics from 4 university-affiliated hospitals in southern Connecticut.Outcome MeasuresThe main outcome measure was prenatal care satisfaction. The secondary outcome was number of prenatal care visits that were attended by each member of the couple dyad. Both of these outcomes were assessed to evaluate whether discriminatory factors that participants experienced in healthcare had an effect on each outcome.ResultsA total of 51 males (17.5%) and 36 females (12.4%) reported a perception of experiencing discrimination in the healthcare system a few times a year or more. Those who believed that race contributed to discrimination in the healthcare system were 2.45 times more likely to have an unpleasant prenatal visit (P = .018). Those who believed that age contributed to discrimination in the healthcare system were 2.74 times more likely to have an unpleasant prenatal visit (P = .001). Participants who believed that physical appearance contributed to discrimination in the healthcare system were 2.83 times more likely to have an unpleasant prenatal visit (P = .01).ConclusionBlack and Latinx young expecting couples are not exempt from discriminatory experiences during prenatal care. Recommendations for quality improvement in prenatal healthcare settings include implementation of standard evaluative measures specific to personal treatment and supportiveness of the medical team.     

Outcome Evaluation of ‘Sharing the Gift of Life’: An Organ and Tissue Donation Educational Program for American Indians

Culturally focused education about deceased donation is needed for American Indians (AIs). This study tested a program designed to impact intention to serve as a deceased donor for reservation dwelling AIs. A pre/posttest design and a community‐based participatory research approach were used. The study was based upon the Transtheoretical Model. Adult participants (N = 1580, 58% women) were from four Northern Plains reservations. An outreach coordinator delivered the program using print and video materials. The outcome was stage of motivational readiness (SMR) to serve as a deceased donor. McNemar's test was used to compare pre‐ to postintervention changes in SMR. At baseline, 55% of participants were not thinking about being a donor (precontemplation stage) and 45% were thinking about it (contemplation stage). Postintervention, 43.1% of participants were unchanged in SMR and 56.9% progressed in SMR. Of those who progressed, 26.5% (n = 418) changed to the contemplation stage, 19.4% (n= 306) changed to the preparation stage (signed a donor card or joined a registry), and 11.1% (n = 175) confirmed a discussion of the decision with family (action stage). Progression in SMR from pre/post was significant, χ²(1) = 18.32, p < 0.05. The intervention resulted in important changes in deceased donor intentions for reservation dwelling AIs.     

Fatigue Severity, Attributions, Medical Utilization, and Symptoms in Persons with Chronic Fatigue

This study examined the roles of ethnicity, gender, and socioeconomic status (SES) in predicting fatigue severity, symptoms, medical utilization, and attributions among a sample of individuals with chronic fatigue. Using path analysis, a model was tested and revised. In the new model, gender predicted fatigue, ethnicity predicted attributions, fatigue predicted medical utilization and attributions, and attributions predicted medical utilization. Women reported more fatigue and were more likely to feel that stress and depression were causing their fatigue. Higher-SES participants were more likely to cite stress and overwork as causing their fatigue. Latinos reported more physical symptoms than African Americans and Whites. The implications of these results are discussed.     

Echogenic intracardiac focus on second trimester ultrasound: prevalence and significance in a Middle Eastern population

Objective: The association between echogenic intracardiac focus (EIF) and trisomy 21 is well established, with a recognized ethnic variation. Our study aimed to determine the prevalence of EIF in a Middle Eastern population and to examine its association with trisomy 21 and other adverse pregnancy outcomes.

Methods: Retrospective case-control study of second-trimester obstetric sonograms (16–28 weeks) performed at a tertiary care center over a 5-year period. Cases with EIF were retrieved, and a matched control group with no EIF was identified. The incidence of trisomy 21 and other adverse pregnancy outcomes was compared.

Results: A total of 9270 obstetric sonograms were examined, with an EIF prevalence of 2.5% (95% CI: 2.2–2.8%). Of patients with available outcome data, EIF was not associated with trisomy 21 (0/163 versus 1/163; p value = 1.00). Additionally, EIF was not associated with trisomy 18, trisomy 13, small for gestational age, preterm birth, fetal demise, cesarean delivery, operative vaginal delivery, or admission to the neonatal intensive care unit.

Conclusion: In a contemporary Middle Eastern population, EIF is a rare occurrence. As an isolated finding, it is not associated with aneuploidy or other adverse pregnancy outcomes. EIF appears to be incidental with no impact on clinical practice.     

Birds of a feather flock together – and fall ill? Migrant homophily and health in Sweden

Although studies show that health inequities between ethnic groups exist, few have expressed interest in the origins of these disparities. As homophily (the phenomenon that people principally form relationships with those who are similar to them) influences people’s norms and interactions, it might be an important property of migrants’ networks, and have implications on their health. The aim of this study is to examine health inequities between natives and immigrants in Sweden and the health consequences arising from participation in homogenous migrant networks. Using total population registers and representative survey data initial analyses show that migrants experience poorer health than native Swedes. The findings further suggest that homophily is a prominent feature of migrant social networks and that migrants in networks with a high proportion of other migrants experience poorer health than those who include a high proportion of natives in their networks. However, unhealthy behaviour and disadvantaged social conditions may account for a considerable share of their excess risk. Hence, network closure may reinforce and maintain norms leading to negative behaviour and social conditions in such networks.     

Prediction of resting cardiovascular functioning in youth with family histories of essential hypertension: A 5-year follow-up

Two hundred forty-six children (96 Whites, of whom 51 were mates; 150 African- Americans, of whom 69 were males) with a familial history of essential hypertension (EH) were re-evaluated 5 years after an initial evaluation. During the initial visit, anthropometric, demographic, and resting cardiovascular (CV) parameters (designated initial baseline levels) were assessed. These CV parameters (systolic and diastolic blood pressure [BP], heart rate, cardiac output index [CI], and total peripheral resistance index [TPRI]) were also measured during postural challenge, a video game challenge, and a cold pressor task. At follow-up, resting CV parameters were again evaluated, and designated as follow-up resting levels. Moderate temporal stability (r range = .43-.56) was observed for all resting CV parameters. Mean stress responses for each CV parameter for all 3 stressors during the initial visit were positively related to the respective CV follow-up resting level. BP stress responses to postural change and video game challenge were found to be significant independent predictors of future resting BP after controlling for standard EH risk factors. Follow-up resting CI was not predicted by any stress responses, whereas follow-up resting TPRI was predicted by TPRI responses to the video game after controlling for standard EH risk Factors. These results contrast with those from an earlier 1-year follow-up. where stress responses for neither CI nor TPRI predicted follow-up resting levels. It appears that, as children get older. TPRI stress responses play a stronger role in vasoconstrictive function. This research was supported by National Institutes of Health Grant HL41781.     

广西瑶族Heath-Carter法体型*

目的：研究广西瑶族成人的体型特点。方法：应用Heath-Carter 体型法对广西瑶族成人（ 男性275 例,女 性383 例）进行体型研究。结果：瑶族男性与女性的平均体型值分别为3.7-5.3-1.5 和5.9-5.3-0.9,体型类型分别 为偏内胚层的中胚层体型和偏中胚层的内胚层体型。线性相关分析显示,男性、女性内因子均与年龄呈正相关, 外因子与年龄呈负相关;男性中因子与年龄无相关,女性中因子与年龄呈正相关。单因素方差分析显示,男、女 性3 个因子值年龄组间的差异均具有统计学意义。结论：随着年龄增长,瑶族男性30 岁、女性40 岁以后体型出 现了明显的变化,女性年龄组间差异比男性更明显。