INTRODUCTION Inconsistency in the time trade-off (TTO) task in EQ-5D-5L occurs when a respondent gives a higher value to a logically worse health state, the occurrence of inconsistency compromises the quality of the data. It is not yet clear which factors are associated with individual level inconsistency. Relating inconsistency to the characteristics of the respondent, interviewer, and the int...

Protecting the confidentiality of survey respondent data is related to the notion of data user uncertainty in various ways. The source of uncertainty that is most frequently exploited by agencies in formulating protection rules for tabular data is the fact that there is often more than one respondent (e.g., a company) contributing to a given table cell value. Agencies are required to protect th...

OBJECTIVES To examine the role of alcohol at the time of aggressive incidents between intimate partners in the general population by gender, by estimating (1) prevalence and severity of aggression, and drinking at the time, (2) associations of drinking at the time of the aggression with reported severity, anger and fear, and (3) association of usual drinking patterns with partner aggression. ...

STUDY OBJECTIVES To study the influence of the proxy respondent on health interview surveys in children. DESIGN Cross sectional study. SETTING Children under the age of 15 years drawn from the general population of Catalonia, Spain. PARTICIPANTS The Catalan Health Interview Survey consisted of a multistage probability sample representative to the population of Catalonia. The sample size w...

BACKGROUND Census-based measures of income derived from median income of a geographic area are often used in health research. Many national census surveys gather information on both the respondent's individual income and the income for the entire household, giving researchers a choice of census income measures. We compared the extent to which individual respondent income and household income (b...

BACKGROUND Francophones who live outside the primarily French-speaking province of Quebec, Canada, risk being excluded from research by lack of a sampling frame. We examined the adequacy of random sampling, advertising, and respondent-driven sampling for recruitment of francophones for survey research. METHODS We recruited francophones residing in the city of Calgary, Alberta, through adverti...

In 2000 and 2001 Canadians were shocked by water contamination events that took place in two provinces. In 2004 we undertook an internet-based survey across Canada that asked respondents to identify in percentage terms their total drinking water consumption according to one of three sources: tap water, bottled water, and home-filtered water (either some type of container or an in-tap filter dev...