objective of this study was determining of the hamadanian young couples about family size, sex ratio and birth order of their asked children. the population of this study was the young men and women that were imminent of marriage, refereed to marriage offices as well as hygienic and therapeutic centres in hamadan city. this was a cross sectional descriptive study and has been done by using ques...

objectives: the object of this research was to investigate the «quality of life» and relation to demographic characteristics in elderly peopel of tehran. methods & materials: the method of this research was a descriptive-correlation. in this research 243 of elder were selected with accessible sampling from people who referred to elder centers, cultural centers, and public parks in deferent dist...

background: st. john’s wort (hypericum perforatum l.) is an important medicinal plant that has been widely used for its antidepressant properties. objective: in this study morphological characteristics variation of populations of h. perforatum were investigated. methods: in this study, different morphological characteristics of 25 h. perforatum populations in iran’s natural habitats were evalua...

background opium abuse significantly affects the nutritional status of users and frequently leads to undernourishment. methadone maintenance therapy has been used as one of the possible ways to prevent of infection diseases such as hiv and hepatitis b and c and improve the quality of life in opioid-dependent patients. objectives the aim of this study was to assess the anthropometric and socio-d...

Market research or employee surveys often involve: 1) a population of interest and 2) a need for measuring the number (percent) of people with a certain characteristic. Some of these population characteristics might be: percent of satisfied customers, percent of customers who showed interest toward a future product/service, or the number of people who might be users of a particular product/tech...

conclusions lower agreeableness, decreased conscientiousness, higher neuroticism, diminished openness, low socio-economic status, and male sex might make university students more inclined to substance abuse. thus, it is reasonable to show the importance of these factors in tailored prevention programs. results being male sex and neuroticism had a significant positive role in predicting positive...

Population estimates are generally drawn from one point in time to study disease trends over time; changes in population characteristics over time are usually not assessed and included in the study design. We evaluated whether population characteristics remained static and assessed the degree of population shifts over time. The analysis was based on the New York State 1990 and 2000 census data ...

Geoffrey Rose's 1985 paper, Sick individuals and sick populations, continues to spark debate and discussion. Since this original publication, there have been two notable challenges to Rose's population strategy of prevention. First, identification of high-risk individuals has improved considerably in accuracy, which some believe obviates the need for population-wide prevention strategies. Secon...

PURPOSE Although disaster exposure has been linked with increased child aggression by previous reports, population-level trends are unknown. Pre- to post-Katrina changes in violence-related behaviors among New Orleans high school youth (ages: 12-18 years) were assessed. METHODS Data from the 2003 (pre-Katrina), 2005 (pre-Katrina), and 2007 (post-Katrina) New Orleans Youth Risk Behavior Survey...