a decreasing trendp<0.001
For postpartum care visits at days 1–3, 10–15 and 30–42, we observed a decreasing trend before the COVID-19 pandemic (β 1 =−5.80% (95% CI −6.43% to –5.16%), −2.12% (95% CI −2.63% to −1.62%) and −1.84% (95% CI −2.32% to –1.23%) per month; p<0.001, p<0.001 and p<0.001, respectively).