To better understand the risk factors for the high prevalence of asthma in her school, the school nurse gets approval to send out an anonymous survey to the parents. She is seeking preliminary data on how many of the students who may have asthma are exposed to secondary smoke. Questions for the parents include information about their children's history of asthma and whether anyone living in the home smokes. Which study design best describes her study?
A)Case-control study
B)Cross-sectional study
C)Cohort study
D)Outbreak investigation

Question

Quizplus · Accepted Answer

The study is cross-sectional because it involves collecting data at a single point in time to assess the prevalence of asthma and exposure to secondary smoke among students.

To Better Understand the Risk Factors for the High Prevalence