Table 4.
Comparison of the incidence rates of PF and PBSI by type of surgery
| Type of surgery | Incidence of PF (%, n/N) |
χ² * | P value * | Incidence of PBSI (%, n/N) |
χ² * | P value * |
|---|---|---|---|---|---|---|
| Gynecological surgery |
2.71 (498/18368) |
0.04 | 0.841 |
1.32 (242/18368) |
0.01 | 0.920 |
| Gynecology + Obstetrics Surgery |
0.49 (5/1015) |
17.49 | < 0.001 |
0 (0/1015) |
12.33 | < 0.001 |
| Gynecology + Gastrointestinal Surgery |
6.98 (24/344) |
21.88 | < 0.001 |
4.07 (14/344) |
17.47 | < 0.001 |
| Gynecology + Urological Tract Surgery |
0 (0/96) |
1.70 | 0.192 |
0 (0/96) |
0.45 | 0.502 |
| Gynecology + Hepatobiliary Surgery |
10.00 (2/20) |
1.78 | 0.182 |
10 (2/20) |
5.94 | 0.015 |
| Gynecology + Other surgeries |
4.76 (3/63) |
0.40 | 0.527 |
1.59 (1/63) |
0.00 | 1.000 |
| Total |
2.67 (532/19906) |
Ref. | Ref. |
1.3 (259/19906) |
Ref. | Ref. |
* The ‘Total’ row was used as the reference group for all Chi-squared (χ²) tests and P value calculations