Table 2.
Patient characteristics (stratified by trocar site hernia on CT)
| Variable | TSH (N = 17) |
No TSH (N = 62) |
Total (N = 79) |
p value |
|---|---|---|---|---|
| Sex | 0.519a | |||
| Female | 12 (70.6) | 49 (79) | 61 (77.2) | |
| Male | 5 (29.4) | 13 (21) | 18 (22.8) | |
| Age at surgery (years) | ||||
| Mean (SD) | 44.4 (6.5) | 40.6 (9.8) | 41.4 (9.3) | 0.216b |
| Preoperative BMI (kg/m2) | ||||
| Median (IQR) | 45.5 (13.3) | 43.5 (7) | 43.6 (8.3) | 0.183b |
| BMI loss (kg/m2) | ||||
| Median (IQR) | 10.2 (6.8) | 10.0 (5.8) | 10.1 (6.2) | 0.886b |
| Missing | 6 | |||
| Patients with previous abdominal surgery | 2 (11.8) | 19 (30.6) | 21 (26.6) | 0.213a |
| Patients with later abdominal surgery | 0 | 6 (9.7) | 6 (7.6) | 0.331a |
| Patients with previously suspected abdominal wall hernia | 2 (11.8) | 1 (1.6) | 3 (3.8) | 0.115a |
|
Follow-up time (months) Mean (SD) |
34.7 (13.2) | 37.3 (13.3) | 36.7 (13.2) | 0.465c |
| Comorbidities | ||||
| Hypertension | 7 (41.2) | 17 (27.4) | 24 (30.4) | 0.372a |
| Diabetes mellitus | 2 (11.8) | 5 (8.1) | 7 (8.9) | 0.639a |
| Sleep apnea | 4 (23.5) | 2 (3.2) | 6 (7.6) | 0.018*,a |
| Chronic obstructive pulmonary disorder | 0 | |||
| Smoking status | 0 | 3 (4.1) | 3/74 (4.1) | 1.000a |
| Missing | 5 | |||
| Operative data | ||||
| Duration of surgery (hours) | ||||
| Mean (SD) | 0.40 (0.16) | 0.38 (0.12) | 0.38 (0.13) | 0.584c |
| Perioperative bleeding complications | 0 | 2 (3.2) | 2 (2.5) | 1.000a |
| Postoperative wound infection | 1 (6.3) | 0 | 1/76 (1.3) | 0.211a |
| Missing | 3 | |||
| Reoperation | 0 | |||
| TSH at 1-year clinical follow-up | 0 | |||
| Missing | 3 | |||
| TSH at 2-year clinical follow-up | 0 | |||
| Missing | 13 | |||
Data are presented as numbers (percentages) of patients unless otherwise specified
IQR interquartile range, SD standard deviation, TSH trocar site hernia
aFisher’s exact test
bMann-Whitney test
cTwo-tailed, unpaired T-test
*Significance level p < 0.05