Table 2 Comparison between the 2 groups as regards surgical history using Chi-square test
From: Role of multi-detector CT venography in evaluation of pelvic congestion syndrome
Variable | Normal group (170) | PCS group (30) | Chi-square test | |
|---|---|---|---|---|
P value | ||||
Previous operations | No | 88 (51.8%) | 14 (46.7%) | = 0.751 |
Yes | 82 (48.2%) | 16 (53.3%) | ||
Number of C-sections | No operation | 91 (53.5%) | 14 (46.7%) | = 0.439 |
1 operation | 25 (14.7%) | 4 (13.3%) | ||
2 operation | 33 (19.4%) | 8 (26.7%) | ||
3 operation | 18 (10.6%) | 3 (10%) | ||
4 operation | 3 (1.8%) | 1 (3.3%) | ||
Number of D&Cs | No operation | 155 (91.2%) | 25 (83.3%) | = 0.264 |
1 operation | 11 (6.5%) | 4 (13.3%) | ||
2 operation | 4 (2.4%) | 1 (3.3%) | ||