marginally significantp = 0.048
Among women aged 25–34 years, there was also a marginally significant decline in the month‐to‐month prevalence ratio of valproate use in the post‐April 2018 intervention period (PR = 0.996, 95% CI: [0.992, 1.000], p = 0.048) compared to the pre‐April 2018 intervention period.