Table 1. Characteristics of patients and physicians according to baseline features and events at first treatment.
| Characteristic | Patients | Physicians | Event at first treatment | |
|---|---|---|---|---|
| (n = 319,004) | (n = 115) | (n = 524,012) | ||
| Patients | Physicians | |||
| (n = 524,012) | (n = 524,012) | |||
| Age, years (mean ± SD) | ||||
| Female | 52.7 ± 15.6 | 36.5 ± 4.1 | ||
| Male | 53.6 ± 16.0 | 43.1 ± 7.3 | ||
| Gender, n (%) | ||||
| Female | 178,043 (55.8) | 25 (21.7) | 295,288 (56.4) | 93,915 (17.9) |
| Male | 140,961 (44.2) | 90 (78.3) | 228,724 (43.6) | 430,097 (82.1) |
| Medical school attended by physician, n (%) | ||||
| From SNU | 89 (77.4) | 466,249 (89.0) | ||
| Not from SNU | 26 (22.6) | 57,763 (11.0) | ||
| Specialization/hospital department, n (%) | ||||
| Neurology | 11 (9.6) | 65,505 (12.5) | ||
| Family medicine | 4 (3.5) | 38,880 (7.4) | ||
| Orthopedics | 6 (5.2) | 34,079 (6.5) | ||
| Internal medicine (division of pulmonology) | 5 (4.3) | 33,285 (6.4) | ||
| General surgery | 7 (6.1) | 31,597 (6.0) | ||
| Others | ||||
SNU: Seoul National University