RESULTS
Of the 4,851 PRIDE Study participants who completed the first follow-up questionnaire in the study period, 1,516 (31.3%) completed the medication diary (Figure 1). Among participants with a completed medication diary, 1,275 (84.1%) gave permission to request pharmacy records. Pharmacy records including start and stop dates of medication were obtained from 816 participants (64.0%). Characteristics of the study population and excluded PRIDE Study participants are shown in Supplemental Table 2.
According to the pharmacy records, 235 (28.8%) participants used at least one of the selected medications during the 6-weeks diary period. These participants were slightly older, more often had a low/intermediate level of education, a net household income of <\euro3,500 per month, and a chronic condition, had a higher pre-pregnancy BMI, and were more likely to smoke during pregnancy compared to participants who were not dispensed medication in the diary period (Table 1).