Classification of psychiatric symptoms using deep interaction networks: the CASPIAN-IV study.

Identifying the possible factors of psychiatric symptoms among children can reduce the risk of adverse psychosocial outcomes in adulthood. We designed a classification tool to examine the association between modifiable risk factors and psychiatric symptoms, defined based on the Persian version of the WHO-GSHS questionnaire in a developing country. Ten thousand three hundred fifty students, aged 6-18 years from all Iran provinces, participated in this study. We used feature discretization and encoding, stability selection, and regularized group method of data handling (GMDH) to classify the a priori specific factors (e.g., demographic, sleeping-time, life satisfaction, and birth-weight) to psychiatric symptoms. Self-rated health was the most critical feature. The selected modifiable factors were eating breakfast, screentime, salty snack for depression symptom, physical activity, salty snack for worriedness symptom, (abdominal) obesity, sweetened beverage, and sleep-hour for mild-to-moderate emotional symptoms. The area under the ROC curve of the GMDH was 0.75 (CI 95% 0.73-0.76) for the analyzed psychiatric symptoms using threefold cross-validation. It significantly outperformed the state-of-the-art (adjusted p < 0.05; McNemar's test). In this study, the association of psychiatric risk factors and the importance of modifiable nutrition and lifestyle factors were emphasized. However, as a cross-sectional study, no causality can be inferred.

HIV/AIDS knowledge among Iranian Health Care Workers.

BACKGROUND: HIV/AIDS remains a major public health concern globally and Health Care Workers (HCWs) are in the frontline of preventing and providing care in the health care system. The aim of this study was to evaluate HIV/AIDS knowledge among Iranian HCWs. METHODOLOGY: This cross-sectional study was conducted among 200 HCWs who were randomly selected from health care centers in Kermanshah city, west of Iran, 2018. HCWs filled out a self-administered questionnaire including the socio-demographic characteristics and HIV/AIDS knowledge items. Data were analyzed by SPSS version 16 using bivariate correlations, t-test, and ANOVA statistical tests. RESULTS: The mean score of HIV/AIDS knowledge was 29.73 [95% CI: 28.79, 30.67], ranged from 0 to 40 (74.3% of total percent). There was no significant association and correlation between HIV/AIDS knowledge and sex, education level, marital status, age and job history. Up to 50% had inadequate knowledge about HIV/AIDS status and transmission in Iran. CONCLUSIONS: HCWs HIV/AIDS knowledge was average and it seems need to be educating regarding HIV/AIDS status and transmission in Iran.

Association of neck circumference with general and abdominal obesity in children and adolescents: the weight disorders survey of the CASPIAN-IV study.

OBJECTIVES: This study aimed to evaluate the association of neck circumference (NC) with obesity to determine the sex-specific and age-specific optimal cut-off points of this measure in association with obesity in a national sample of the Iranian paediatric population. METHODS: This survey on weight disorders was conducted among a national sample of Iranian children and adolescents, aged 6-18 years. Using the area under the curve (AUC) of the receiver operator characteristic curves, we evaluated the association of NC with general and abdominal obesity. RESULTS: This national survey was conducted among 23 043 school students (50.8% boys) with a mean age (SD) of 12.55 (3.31) years. A significant association was documented between NC and other anthropometric measures in both sexes and in the whole population. In all age groups and genders, NC performed relatively well in classifying participants to overweight (AUC: 0.67 to 0.75, p<0.001), general obesity (AUC: 0.81 to 0.85, p<0.001) and abdominal obesity (AUC: 0.73 to 0.78, p<0.001). CONCLUSIONS: NC can be considered as a simple time-saving clinical tool for obesity detection in large population-based studies in children and adolescents. It is significantly correlated with indices of adiposity and can reliably identify children with general and abdominal obesity in the Iranian paediatric population.