Evaluation of the dietary quality of De'ang nationality residents over 18 years old in Yunnan by Diet Balance Index DBI_16 / 公共卫生与预防医学

Objective To evaluate the dietary quality of De'ang nationality residents over 18 years old in Yunnan Provinceusing the new adjusted Diet Balance Index (DBI_16), and to provide scientific basis for improving the nutritional status of De'ang residents and formulating health promotion strategies. Methods A food-frequency questionnaire was used to investigate the diet of De'ang residents, and the new adjusted dietary balance index (DBI_16) was used to evaluate the dietary quality. Results The dietary quality of De'ang nationality residents over 18 years old in Yunnan Province was in a moderately imbalanced state (DQD=42), and the main problem was insufficient dietary intake (LBS = 26). The dietary imbalance among men, 65-79 years old and low-income people was serious. The intake of milk, vegetables, fruits and aquatic products was the most insufficient and people who met the recommended intake levels of these foods were 2%, 34.7%, 31.8%, and 36%, respectively. Meanwhile, there existed the problem of excessive intakes among people studied in the present investigation. Pople who consumed more than recommended amount of Cereal food, livestock and poultry meat, and edible oil accounted for 76.9%, 60.4% and 63.5%, respectively. Conclusion The dietary structure of De'ang residents over 18 years old in Yunnan Province is unreasonable. The problems of both insufficient and excessive dietary intakes exist. Education on balance diet should be conducted to improve nutrition and health status of De'ang nationality residents.

Impacts of antiretroviral treatment on drug use and high risk sexual behaviors among HIV-positive MMT clients / 中华预防医学杂志

<p><b>OBJECTIVE</b>To explore the impacts of antiretroviral treatment on drug use and high risk sexual behaviors among HIV-positive MMT clients.</p><p><b>METHODS</b>A cross-sectional study was conducted in patients undergoing ART (ART-experienced) and patients not undergoing ART (ART-naive) attending MMT in 5 clinics in Yunnan Honghe and Dehong prefectures in 2014. A questionnaire was designed to collect socio-demographic characteristics, ART and MMT information and sexual and drug use behaviors within 3 months before the investigation was conducted. Logistic regression analysis was conducted to identify the predictors for drug use and risky sexual behaviors.</p><p><b>RESULTS</b>A total of 328 cases were included in the analysis, among which 202 were ART-experienced and 126 were ART-naÏve. Among 152 respondents who were sexually active, 61 (40.1%) reported having unprotected sex (UPS) with their regular partners in the prior 3 months. A total of 57.6% (189/328) of the respondents used drugs in the prior 3 months. Multiple logistic regression analysis revealed that younger than 35 years old (OR = 3.57, 95% CI: 1.23-10.37), fertility desire (OR = 4.47, 95% CI: 1.49-13.41), partner being HIV-positive (OR = 4.62, 95% CI: 1.80-11.86), length of MMT attendance less than 5 years (OR = 2.92, 95% CI: 1.14-7.53), agreed that it was necessary to use condom no matter the viral load is high or low (OR = 0.14, 95% CI: 0.04-0.51) were protective factors of UPS in the prior 3 months. Multiple logistic regression analysis revealed that being Han (OR = 0.46, 95% CI: 0.24-0.89), feeling having good health status (OR = 0.39, 95% CI: 0.18-0.85), being enrolled in ART (OR = 0.32, 95% CI: 0.17-0.60) were protective factors for drug use in the prior three months, having contact with drug using friends (OR = 4.41, 95% CI: 2.31-8.29), having experience of missing an MMT dose (OR = 3.47, 95% CI: 1.92-6.29), and not satisfied with current MMT dose (OR = 13.92, 95% CI: 3.24-59.93) were risk factors for drug use during the prior three months.</p><p><b>CONCLUSION</b>ART was not associated with risky sexual behavior and drug use in the prior 3 months in this population. Future interventions should promote ART among this population, and provide education at the same time to prevent the emergence of cross infections and drug-resistant strains.</p>

Syphilis incidence and its risk factors in a cohort of young men who have sex with men / 中华预防医学杂志

<p><b>OBJECTIVES</b>To investigate the incidence of syphilis infection and to determine the risk factors related to syphilis infection among young men who had sex with men (YMSM), which were documented for developing effective intervention to prevent sexually transmitted diseases among YMSM.</p><p><b>METHODS</b>A cohort study was conducted in 8 cities (Beijing, Shanghai, Kunming,Guiyang, Chongqing, Chengdu, Urumqi and Nanning) from May to December, 2009. A total of 1 037 syphilis-negative YMSM aged 18-25 were enrolled in the cohort and the two follow-up surveys were carried out every six months. The contents of study included sociodemographic characteristics, HIV-related knowledge, sexual behavior and condom use in the 6 months prior to survey. All participants were tested for syphilis with whole blood specimens. Chi-square test was used to compare demographic characteristics of participants in baseline with those of two follow-up, and Cox regression analysis was used to identify risk factors associated with syphilis infection.</p><p><b>RESULTS</b>The rates of participants in 6, 12 months follow-up surveys was 79.85% (828/1 037) and 82.16% (852/1 037) respectively.39 syphilis seroconversions were found in the 12 months follow-up survey. Cumulative observed person-years during follow-up time was 1 106.67. The syphilis incidence rate was 3.5%. The Multivariate Cox regression analysis showed that the education of senior high school (senior high school vs some college or higher, RR = 2.19, 95% CI:1.21-3.98), bisexual orientation (bisexual orientation vs homosexual orientation, RR = 2.19, 95% CI:1.21-3.97), score of HIV/AIDS knowledge <8 (score of HIV/AIDS knowledge <8 vs knowledge = 8, RR = 2.39, 95%CI:1.35-4.21), had two and more sexual partners and inconsistent condom use in the past 6 months (inconsistent condom use vs consistent condom use, RR = 3.10, 95% CI:1.39-6.91) were significantly associated with syphilis seroconversion in the 12-month period.</p><p><b>CONCLUSIONS</b>The syphilis incidence was high and risk behaviors were common among YMSM of China.</p>