2.3. Statistical analysis
We used numbers and percentage to describe the incidence of DVT, PE, and maternal death due to VTE. Differences in the hospital-related characteristics were examined using χ2 tests. The association of hospital-related characteristics with DVT, PE, and maternal death due to VTE was analyzed by a T-test and analysis of variance (ANOVA). Statistical analyses were performed using SPSS version 26.0. Multiple imputation was considered appropriate as the number of missing values was low and could be predicted from the observed variables. One hundred simulated imputed datasets, each with 50 iterations, were generated and analyzed.