BACKGROUND Despite the importance of obesity and its association with socioeconomic status, little is known about this condition in Korean adolescents. We examined the relationship between obesity in Korean adolescents and several socioeconomic variables and compared the association of obesity with conventional and subjective indicators of socioeconomic status. METHODS The study comprised 60 ...

BACKGROUND The objective of this study is to outline a capabilities approach to the social determinants of population health and to compare its explanatory power and implications for public policy-making with psychosocial approaches. METHODS A model linking the structures of economic and social relations to health outcomes is developed and logistic methods used to confirm its base validity fo...

The most important reason for studying population is to gain better understanding how societies function and change. In the study of demography, fertility is the most important and perhaps the most complicated aspect of the population. It plays a significant role in the size, composition and distribution. The importance of demographic study lies on population growth can affect our lives in a va...

background: prenatal care consists of a series of clinical visits and services offered to pregnant women throughout the ante-partum period. despite advances in the extent of prenatal care use in iran, some women still avoid using these services. it is therefore very important to investigate the prevalence of prenatal care use, and to identifythe factorsassociated with it. objective: this study ...

BACKGROUND Visual acuity, like many other health-related problems, does not have an equal distribution in terms of socio-economic factors. We conducted this study to estimate and decompose economic inequality in presenting visual acuity using two methods and to compare their results in a population aged 40-64 years in Shahroud, Iran. METHODS The data of 5188 participants in the first phase of...

Glossary Econometrics: a statistical approach to economic modelling in which all the parameters in the structural equations are estimated according to a 'best fit' to historical data. Maximum likelihood: a statistical concept which underpins calibration optimisation and which generates the most likely parameter values; it is equivalent to the parameter set which minimises the chi-square value. ...

Emphasis on sustainable agriculture in Iran like the other developing countries, is responsedto the adverse environmental and economic impacts of conventional agriculture. Thisproblem, particularly about “greenhouse production” is considerable. The perceptions ofgreenhouse owners about the environmental, economical and social aspects of sustainableagriculture was discussed in this article. The ...

the main goal of this study is the effectiveness evaluation of socio-demographic variables on increasing marriage age of working female students in university of tehran. using statistical method and questionnaire technique, 387 married female students have been participated in this study by cluster-sampling method. the explanatory variables of female students increase marriage age are: educatio...

This paper introduces the variable objective search framework for combinatorial optimization. The method utilizes different objective functions used in alternative mathematical programming formulations of the same combinatorial optimization problem in an attempt to improve the solutions obtained using each of these formulations individually. The proposed technique is illustrated using alternati...