All participants with PPCM demonstrated reduced LVEF (<45%) and left ventricular systolic dysfunction (9 (100.0%)), whereas none of the non-PPCM group showed these findings (0 (0.0%)), with a highly significant association (χ2 = 99.99, p < 0.001).
Other risk factors, including gestational hypertension (3 (33.3%) vs 22 (24.2%)), obesity (3 (33.3%) vs 18 (19.8%)), twin gestation (2 (22.2%) vs 9 (9.9%)), gestational diabetes mellitus (1 (11.1%) vs 10 (11.0%)), and eclampsia (2 (22.2%) vs 5 (5.5%)), were more frequently observed in the PPCM group but did not reach statistical significance.