OBJECTIVE The aim of the present study was to investigate the epidemiology of psychological problems in adolescents in five provinces of Tehran, Khorasan Razavi, Isfahan, East Azerbaijan and Fars in Iran. METHODS In the present cross-sectional and descriptive - analytical study, 5171 adolescents aged 12 to 17 years were selected through multistage cluster sampling method from Tehran, Isfahan,...

To estimate the genetic diversity of chickpea germplasm from Iran, a total of 307 landraces from 4 regions including: northern areas (29 from Ardebil, 3 from Qazvin and 5 from Mazanderan provinces), temperate (16 from Kermanshah, 2 from Semnan, 54 from Khorasan and 20 from Kerman provinces), semi-arid (28 from Ghom and 56 from Isfahan provinces) and cold areas (15 from West Azarbayjan, 52 from ...

Weights and Heights of 22,349 children and adolescents aged 2 to 18 in Iran are reported. Data are from the 1990-1992 National Health Survey, a random cluster sample survey of 1 in 1000 families in all provinces of Iran. Multilevel models (Goldstein 1995) which take account of the survey design, reveal significant differences between provinces and between urban and rural children. Differences b...

This descriptive, cross-sectional study was conducted at 2 military hospitals in Pakistan from January 2004 to December 2005. Young adult males with age range 17-22 years from different districts of Pakistan were screened for hepatitis B surface antigens (HBsAg) and anti-hepatitis C antibodies (anti-HCV). Out of 5707 young men tested, 95 (1.70%) were positive for anti-HCV and 167 (2.93%) for HB...

BACKGROUND This study aims to evaluate the dialectical relationship between equity and efficiency of health resource allocation and health service utilization in China. METHODS We analyzed the inequity of health resource allocation and health service utilization based on concentration index (CI) and Gini coefficient. Data envelopment analysis (DEA) was used to evaluate the inefficiency of res...

in this paper, the notion of the digital divide has been described, and a few analyzing methods of digital divide have been reviewed. analyzing methods of digital divide are called indices which have different indicators and different formulas for calculation. since data collection for an indicator may be difficult, calculating an index is an essential problem. we collected and calculated some ...

background: during the last decades, the number of dentistry units increased significantly across the country. the aim of this study was to assess the efficiency of dental units of iran provinces regarding dental health inputs and outputs using data envelopment analysis approach. methods: in this applied descriptive-analytical study, the study population included all of iran 31 provinces. the o...