melamine is a new risk of urinary stones. gansu province is a heavily affected area and has large population and underdeveloped economy. we hypothesized that number of family members and family income may play significant roles in the formation of urinary stones. a case-control study was performed among 190 infants. results showed that the case group had less numbers of family members than the ...

Equivalence scales are typically designed for adjusting households’ incomes for differences in size and composition. On the one hand, there is evidence that the way differences in needs across households are taken into account has a significant impact on the assessment of inequality in the society. On the other hand, equivalence scales with constant elasticity with respect to family size have b...

ABSTRAO'.-A case of attempted small mammal "domestication" is described based on ethnographic data from the Yemen Arab Republic (Fig. 1). Households of low economic status sought to supplement their cash incomes by taming a previously hunted species, the hyrax, Promvm CJlpensis jayakari. The experiments have largely ended in failure due to factors including the animal's biology and a poor manag...

the focus of this paper is to investigate economic analysis of the relationship between marriage benefits to age at marriage and its duration. economic theory helps to understand that family formation has some benefits that emerge in various aspects. one of the benefits of marriage –such that is observed in literature of family– can be the increase of the income of couples after family formatio...

The relation between low socioeconomic status (SES) and depression has been well documented in adult populations. A number of studies suggest that family SES may be associated with depression among children and adolescents as well, although the evidence is mixed. We assessed the relation between family income and depressive symptoms among 457 children aged 11-13 years and examined pathways that...

OBJECTIVE Elderly choose between utilizing private or public health care providers based on their socioeconomic, demographic, and epidemiological condition. The purposes of this study was to evaluate how these factors affect the choice of health care provider and to compare the impact of their choice on individual and family income. METHODS Data from 7,920 elders interviewed in a study of the...