Patient data (n = 558) | Valuea | Odds ratio | < 18 years (n = 269) | > 18 years (n = 289) | P-valueb | |
---|---|---|---|---|---|---|
Age (years) | 26 (0.4–74) |  | (0.4–18) | (19–74) |  | |
Sex (M/F) (%) | Â | 305/253 (54.6/45.4) | 1.2 | Â | Â | Â |
Duration of febrile state (days) |  | 3.6 (1–7) |  |  |  |  |
Signs and symptoms | Temperature on admission (°C) | 38.8 (38–40) |  |  |  |  |
Headache | 248 (44) | 0.8 | 36.4 | 51.9 | 0.0003 | |
Myalgia | 328 (59) | 1.4 | 30.8 | 64.8 | 0.0001 | |
Arthralgia | 117 (21) | 0.3 | 10.0 | 31.1 | 0.0001 | |
Rash | 189 (16) | 0.5 | 35.3 | 32.5 | 0.5311 | |
Petechia | 156 (10) | 0.4 | 15.6 | 38.8 | 0.0001 | |
Nausea/ Vomiting | 68 (3.2) | 0.13 | 13.7 | 1.04 | 0.0001 | |
Positive tourniquet test | 53 (9.5) | 0.1 | 4.5 | 14.2 | 0.0001 | |
Warning sign | Back pain | 56 (10) | 0.11 | 1.85 | 17.7 | 0.0001 |
Bleeding gums | 18 (3.2) | 0.03 | 0.74 | 5.54 | 0.0001 | |
Abdominal pain | 38 (6.8) | 0.07 | 3.34 | 10.03 | 0.001 |