Patient characteristics | Total (n = 1537) | Noncollapsed group (n = 731) | Collapsed group (n = 806) | Statistical value | P | |
---|---|---|---|---|---|---|
Age (years) | 43.11 ± 13.13 | 42 ± 13.60 | 44.12 ± 12.61 | -3.160 | 0.002 | |
Sex | Male | 1211 (78.8%) | 511 (69.9%) | 700 (86.8%) | 65.859 | < 0.001 |
Female | 326 (21.2%) | 220 (30.1%) | 106 (13.2%) | |||
Body mass index (kg/m²) | 25.10 ± 3.15 | 25.18 ± 3.22 | 25.03 ± 3.10 | 0.923 | 0.356 | |
Aetiology | Alcohol-induced | 693 (45.1%) | 305 (41.7%) | 388 (48.1%) | 21.890 | < 0.001 |
Idiopathic | 768 (50%) | 404 (55.3%) | 364 (45.2%) | |||
Corticosteroid-induced | 76 (4.9%) | 22 (3%) | 54 (6.7%) | |||
Side | Bilateral | 1260 (82%) | 594 (81.3%) | 666 (82.6%) | 0.488 | 0.485 |
Unilateral | 277 (18%) | 137 (18.7%) | 140 (17.4%) | |||
Occupation | Weight-bearing | 591 (38.5%) | 300 (41%) | 291 (36.1%) | 41.914 | < 0.001 |
Sitting | 477 (31%) | 170 (23.3%) | 307 (38.1%) | |||
Standing | 469 (30.5%) | 261 (35.7%) | 208 (25.8%) | |||
Smoker | NO | 811 (52.8%) | 434 (59.4%) | 377 (46.8%) | 24.405 | < 0.001 |
YES | 726 (47.2%) | 297 (4.6%) | 429 (53.2%) | |||
Alcohol use | NO | 957 (62.3%) | 508 (69.5%) | 449 (55.7%) | 31.010 | < 0.001 |
YES | 580 (37.7%) | 223 (30.5%) | 357 (44.3%) |