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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%)