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  • prtest to calculate change in prevalence?

    Hi everyone. I am new to Statalist.

    I am using two timepoints/datasets from a cross-sectional public survey to calculate change in prevalence of a variable (binary variable: 1=used, 0=did not use).

    Will it be appropriate to use prtest to calculate the difference in prevalence and generating a p-value across the two timepoints?

    Of what I know, in order to do a trend analysis, I will need >=3 timepoints.

    In the literature, it seems more common to use a logistic regression and generating odd ratios to compare prevalences. Sorry if I am mixing two different things.

    I am using Stata 14.2. I will appreciate any help. Thank you.