Table 2. Characteristics of the study population.
| Erasmus MC (n = 25,583) | Maasstad (n = 32,532) | Fernando Fonseca (n = 230,548) | |
|---|---|---|---|
| Age categories, n (%) | |||
| 0–16 years | 6185 (24.2) | 7032 (21.6) | 52,843 (22.9) |
| 16–65 years | 15,980 (62.5) | 18,226 (56.0) | 127,562 (55.3) |
| ≥65 years | 3418 (13.4) | 7274 (22.4) | 50,143 (21.7) |
| Gender, n (%) | |||
| Male | 14,611 (57.1) | 16,600 (51.0) | 99,406 (43.1) |
| Female | 10,972 (42.9) | 15,932 (49.0) | 131,142 (56.9) |
| Presenting problem, n (%) | |||
| Cardiac | 1780 (7.0) | 993 (3.1) | 14,185 (6.2) |
| Dermatological | 2960 (11.6) | 3969 (12.2) | 22,251 (9.7) |
| Ear, Nose and Throat | 796 (3.1) | 475 (1.5) | 20,236 (8.8) |
| Gastrointestinal | 3109 (12.2) | 4681 (14.4) | 29,101 (12.6) |
| Neurologic or psychiatric | 2644 (10.3) | 1769 (5.4) | 16,217 (7.0) |
| Respiratory | 1631 (6.4) | 3079 (9.5) | 21,955 (9.5) |
| Trauma or muscular | 7536 (29.5) | 11,689 (35.9) | 53,711 (23.3) |
| General malaise | 3304 (12.9) | 3463 (10.6) | 16,869 (7.3) |
| Uro- or gynaecological | 752 (2.9) | 620 (1.9) | 18,422 (8.0) |
| Other or unknown | 1071 (4.2) | 1794 (5.5) | 17,601 (7.6) |
| MTS urgency, n (%) | |||
| Immediate | 432 (1.7) | 208 (0.6) | 1365 (0.6) |
| Very urgent | 2425 (9.5) | 5075 (15.6) | 37,502 (16.3) |
| Urgent | 11,516 (45.0) | 16,811 (51.7) | 76,777 (33.3) |
| Standard | 11,016 (43.1) | 10,332 (31.8) | 109,956 (47.7) |
| Non-urgent | 194 (0.8) | 106 (0.3) | 4948 (2.1) |
| Disposition, n (%) | |||
| Hospital admission | 6914 (27.0) | 9472 (29.1) | 26,832 (11.6) |
| ICU admission | 438 (1.7) | 245 (0.8) | 461 (0.2) |
| Mortality at the ED | 43 (0.2) | 32 (0.1) | 74 (<0.1) |