Table 1 Symptoms recorded on clinical history, with OR for death (univariate analysis).
Symptom | N (%) | Mean duration in hours (95% CI) | OR (95% CI) |
|---|---|---|---|
Fever | 814 (96) | 22 (21–23) | 0.44 (0.14–1.30) |
Nausea/Vomiting | 647 (76.3) | 18 (16–19) | 0.47 (0.26–0.85) |
Petechiae | 432 (50.9) | 8 (6–9) | 0.77 (0.43–1.38) |
Headache | 338 (39.9) | 23 (21–26) | 0.72 (0.39–1.33) |
Low level of consciousness | 334 (39.4) | 15 (13–17) | 0.60 (0.31–1.13) |
Cold-like symptoms | 127 (15) | 60 (48–72) | 2.43 (1.27–4.66) |
Pharyngoamygdalitis | 119 (14) | 35 (29–41) | 1.2 (0.55–2.65) |
Arthralgia | 113 (13.3) | 20 (16–25) | 1.29 (0.58–2.83) |
Neck stiffness | 71 (8.4) | 16 (10–22) | 0.45 (0.11–1.89) |
Irritability | 50 (5.9) | 14 (11–18) | 0.32 (0.04–2.36) |
Convulsions | 37 (4.4) | 3 (1–4) | 2.72 (1.01–7.33) |