Background Surveys are an effective method for collecting a large quantity of data. However,
incomplete responses to these surveys can affect the validity of the studies and introduce …

Background Questionnaires are valuable data collection instruments in public health
research, and can serve to pre-screen respondents for suitability in future studies. Survey …

Background Achieving adequate response rates is an ongoing challenge for longitudinal
studies. The World Trade Center Health Registry is a longitudinal health study that …

Background Both childhood maltreatment (CM) and intimate partner violence (IPV) are
public health problems that have been related to a wide range of adverse health …

Background A much more substantial European evidence base on the accessibility of
healthcare services among women experiencing homelessness across healthcare systems …

Nationwide estimates of food allergy prevalence are frequently based on telephone surveys,
as this allows population-based sampling from geographically diverse regions. The most …

Background Studies suggest that individuals of low education and/or income, new
Canadians (immigrated< 10 years ago), and individuals of Aboriginal identity may have …

Background Diabetes is a chronic disease with increasing prevalence worldwide. Although
research has improved its treatment and management, little is known about which research …

Background: Studies suggest an increase in food allergy prevalence over the last decade,
but the contributing factors remain unknown. The aim of this study was to evaluate the …

Anaphylaxis is a life-threatening condition defined as the involvement of 2 or more systems
after exposure to a possible allergen or hypotension after exposure to a known allergen. 1-3 …