2.3.2 Comparison of Demographic Characteristics of Subsamples by Data Collection Location
Because each of the data collection sites had access to different sub-populations of WhMD users and slightly different methods of participant recruitment, we believed it would be important to understand the differences in the demographic characteristics of the sub-samples of each site.
Therefore the relative percentages of WhMD users stratified by gender, device type and age categories were compared across the study’s three data collection sites.
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