Table 2.
Characteristics of patients with bilateral inguinal hernia repair (2016–2019)
| Total N = 21,795 | Open N = 18,263 | Laparoscopy N = 3532 | p value | |
|---|---|---|---|---|
| Age, Mean ± SD | 61.43 ± 13.58 | 62.27 ± 13.49 | 57.08 ± 13.2 | < 0.001 |
| Age < 65 years, N (%) | 12,266 (56.3) | 9,863 (54) | 2,403 (68) | < 0.001 |
| Age ≥ 65 years, N (%) | 9529 (43.7) | 8400 (46) | 1129 (32) | < 0.001 |
| Sex, N (%) | – | – | – | 0.371 |
| Male | 20,243 (92.9) | 16,950 (92.8) | 3293 (93.2) | – |
| Female | 1552 (7.1) | 1313 (7.2) | 239 (6.8) | – |
| Comorbidities, N (%) | – | – | – | – |
| Arterial hypertension | 5512 (25.3) | 4818 (26.4) | 694 (19.6) | < 0.001 |
| Heart disease | 1676 (7.7) | 1528 (8.4) | 148 (4.2) | < 0.001 |
| Chronic pulmonary disease | 1277 (5.9) | 1122 (6.1) | 155 (4.4) | < 0.001 |
| Renal disease | 386 (1.8) | 366 (2) | 20 (0.6) | < 0.001 |
| Liver disease | 319 (1.5) | 277 (1.5) | 42 (1.2) | 0.138 |
| Diabetes mellitus | 1839 (8.4) | 1618 (8.9) | 221 (6.3) | < 0.001 |
| Obesity | 531 (2.4) | 464 (2.5) | 67 (1.9) | 0.023 |
| Peripheral vascular disease | 256 (1.2) | 239 (1.3) | 17 (0.5) | < 0.001 |
| Cerebrovascular disease | 97 (0.4) | 89 (0.5) | 8 (0.2) | 0.033 |
| Rheumatic disease | 162 (0.7) | 148 (0.8) | 14 (0.4) | 0.009 |
| Alcohol abuse | 421 (1.9) | 366 (2) | 55 (1.6) | 0.077 |
| Tobacco use | 2515 (11.5) | 2114 (11.6) | 401 (11.4) | 0.705 |
| Charlson Index, Mean (SD) | 0.29 ± 0.76 | 0.31 ± 0.78 | 0.18 ± 0.58 | < 0.001 |
| Elixhauser Index, Mean (SD) | 0.73 ± 2.66 | 0.8 ± 2.75 | 0.38 ± 2.07 | < 0.001 |
| Hernia characteristics, N (%) | – | – | – | |
| Recurrent hernia | 1608 (7.4) | 1299 (7.1) | 309 (8.7) | 0.001 |
| Complicated hernia* | 375 (1.7) | 320 (1.8) | 55 (1.6) | 0.415 |
| Type of admission, N(%) | – | – | – | < 0.001 |
| Inpatient surgery | 14,513 (66.6) | 12,376 (67.8) | 2137 (60.5) | |
| Outpatient surgery | 7282 (33.4) | 5887 (32.2) | 1395 (39.5) | |
| Hospital volume, N (%) | – | – | – | 0.144 |
| 1–20 cases/year | 7279 (33.4) | 6132 (33.6) | 1147 (32.5) | |
| 20–40 cases/year | 7027 (32.2) | 5911 (32.4) | 1116 (31.6) | |
| 40–60 cases/year | 4587 (21) | 3745 (20.5) | 842 (23.8) | |
| 60–80 cases/year | 1595 (7.3) | 1427 (7.8) | 168 (4.8) | |
| > 80 cases/year | 1307 (6) | 1048 (5.7) | 259 (7.3) | |
| Hospital length of stay (days), Mean ± SD | 1.17 ± 1.87 | 1.2 ± 1.95 | 0.97 ± 1.32 | < 0.001 |
SD standard deviation
Complicated hernia: hernia with obstruction or gangrene