From: Pelvic floor structural changes during the first singleton pregnancy and the risk factors of stress urinary incontinence
1st trimester
2nd trimester
3rd trimester
P
Post hoc tests
Maternal Age
31.38 ± 3.39
32.52 ± 4.04
32.68 ± 3.99
0.122
1st < 3rd
BMI
21.67 ± 3.25
25.62 ± 4.92
26.25 ± 3.34
0.001**
1st < 2nd, 1st < 3rd