Interviewer effects can have a substantial impact on survey data and may be particularly operant in public health surveys, where respondents are likely to be queried about racial attitudes, sensitive behaviors and other topics prone to socially desirable responding. This paper defines interviewer effects, argues for the importance of measuring and controlling for interviewer effects in health s...

BACKGROUND Canadian normative data for the Medical Outcomes Study 36-item short form (SF-36) have recently been published. However, there is evidence from other countries to suggest that regional variation in health-related quality of life (HRQOL) may exist. We therefore examined the SF-36 data from nine Canadian centres for evidence of systematic differences. METHODS Bayesian hierarchical mo...

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BACKGROUND Dental caries is a major public health problem in many countries. Since the last territority-wide dental survey of Hong Kong preschool children was conducted in 2001, a survey to update the information is necessary. This study aimed to describe the dental caries experience of preschool children in Hong Kong and factors affecting their dental caries status. METHODS A stratified rand...

teeth and t=permanent teeth) has been increasing from 1957 to 2015 years in iran. the current survey aimed to test the power of health promotion model for predicting the oral health behavior among high-school students.  materials and methods: a cross-sectional study was conducted on 482 high school students in gorgan city, iran. multi-cluster sampling was used to recruit the samples. a research...

introduction: given growing elderly population and high prevalence of oral and dental diseases in this age group, this study was conducted to investigate oral health status and related quality of life among older adults in yazd located in central iran. methods: the cross sectional study was carried out on 210 elderly people aged ≥ 60 years under the guise of yazd health care centers who entered...

Ð We use Demographic and Health Surveys (DHS) to compare ``poverty'' at two or more points in time within and between African countries. Our welfare measure is an index resulting from a factor analysis of various household characteristics, durables, and household headsÕ education. An advantage of this measure is that for intertemporal and intraregional comparisons, we need not rely on suspect p...

BACKGROUND To analyze the regular dental care behavior and prevalence of edentulism in adult Danes, reported in sequential cross-sectional oral health surveys by the application of a marginal approach to consider the possible clustering effect of birth cohorts. METHODS Data from four sequential cross-sectional surveys of non-institutionalized Danes conducted from 1975-2005 comprising 4330 res...