Characteristics of patients with intentional and unintentional injuries
| Patients | Unintentional injuries | Injuries from interpersonal violence | P value | |
| Patients, n (%) | 72 438 | 46 689 (64.5) | 25 008 (34.5) | |
| Age in years, median (IQR) | 29 (24–37) | 30 (24–39) | 28 (23–34) | 0.0001 |
| Female sex, n (%) | 16 744 (23.4) | 11 785 (25.3) | 4959 (19.8) | <0.001 |
| Transferred, n (%) | 10 578 (14.8) | 8050 (17.3) | 2528 (10.1) | <0.001 |
| Hours to presentation, n (%)* | <0.001 | |||
| 0–4 | 25 139 (59.5) | 16 800 (61.4) | 8339 (56.1) | |
| 5–24 | 11 527 (27.3) | 6433 (23.5) | 5094 (34.3) | |
| 25–48 | 2558 (6) | 1756 (6.4) | 802 (5.4) | |
| 49–96 | 1318 (3.1) | 1012 (3.7) | 306 (2.1) | |
| >96 | 1715 (4.1) | 1385 (5.1) | 330 (2.2) | |
| Night-time admission (18:00–06:00), n (%) | 26 721 (37.3) | 14 883 (31.9) | 11 838 (47.4) | <0.001 |
| Alcohol use, n (%)† | 6151 (8.6) | 2039 (4.4) | 4112 (16.5) | <0.001 |
| Year of admission, n (%) | <0.001 | |||
| 2009 | 5807 (8.1) | 3620 (7.8) | 2187 (8.8) | |
| 2010 | 7545 (10.5) | 4845 (10.4) | 2700 (10.8) | |
| 2011 | 9398 (13.1) | 6201 (13.3) | 3197 (12.8) | |
| 2012 | 9935 (13.9) | 6530 (14) | 3405 (13.6) | |
| 2013 | 10 407 (14.5) | 6715 (14.4) | 3692 (14.8) | |
| 2014 | 10 197 (14.2) | 6668 (14.3) | 3529 (14.1) | |
| 2015 | 9511 (13.3) | 6308 (13.5) | 3203 (12.8) | |
| 2016 | 8906 (12.4) | 5811 (12.4) | 3095 (12.4) | |
| Occupation, n (%) | <0.001 | |||
| Farmer | 5860 (8.4) | 4411 (9.7) | 1449 (5.9) | |
| Other employment | 54 755 (78.4) | 35 757 (78.8) | 18 998 (77.6) | |
| Unemployed | 9208 (13.2) | 5184 (11.4) | 4024 (16.4) | |
| Season of injury, n (%) | <0.001 | |||
| Rainy (December–February) | 17 339 (24.2) | 10 978 (23.5) | 6361 (25.4) | |
| Lush, green (March–May) | 17 991 (25.1) | 11 846 (25.4) | 6145 (24.6) | |
| Cold, dry (June–August) | 18 427 (25.7) | 12 452 (26.7) | 5975 (23.9) | |
| Hot, dry (September–November) | 17 949 (25) | 11 422 (24.5) | 6527 (26.1) | |
| Injury severity—Malawi Trauma Score, median (IQR) | 8 (6–11) | 8 (6–10) | 10 (8–12) | 0.0001 |
*Available for 42 257 patients (59.1%).
†Not documented in 307 people (0.4%).