Additional file 1 of Reduction in spontaneous and iatrogenic preterm births in twin pregnancies during COVID-19 lockdown in Melbourne, Australia: a multicenter cohort study

Additional file 1: Supplementary Table 1. Primary and secondary outcomes for all pregnancies in the pre-pandemic, exposure 1 and 2 cohorts (Unadjusted RR). Supplementary Table 2. Infant outcomes in the pre-pandemic, exposure 1 and exposure 2 cohorts (Unadjusted RR). Supplementary Table 3. Primary and secondary outcomes for all pregnancies in the pre-pandemic, exposure 1 and 2 cohorts (Sensitivity analysis excluding terminations of pregnancies and major birth defects). Supplementary Table 4. Infant outcomes in the pre-pandemic, exposure 1 and exposure 2 cohorts (Sensitivity analysis excluding terminations of pregnancies and major birth defects). Supplementary Table 5. Primary and secondary outcomes for all pregnancies in the pre-pandemic, exposure 1 and 2 cohorts (Sensitivity analysis retaining sex-discordant twins only). Supplementary Table 6. Infant outcomes in the pre-pandemic, exposure 1 and exposure 2 cohorts (Sensitivity analysis retaining sex-discordant twins only)