To determine the prevalence of smoking among new students in a university,researchers conduct an anonymous survey at the first day of classes.They find that 22% of women and 28% of men were smokers.What type of study design was used?

A) Ecologic
B) Cross-sectional
C) Cohort
D) Case-control
E) Systematic review

Cross-sectional

An observational study method that examines data collected from a population or a selected representative sample at one particular moment.

Prevalence Of Smoking

The proportion of a population that smokes, measured at a specific point in time.

Anonymous Survey

A survey in which the identities of the respondents are not known to the researchers, ensuring privacy and encouraging honest answers.