No. (%) | ||||
---|---|---|---|---|
Overall (N = 161) | Onset before 24 January (N = 75) a | Onset after 24 January (N = 86) | p | |
Asymptomatic | 6 (3.7) | 0 (0.0) | 6 (100) | 0.06 |
Fever | 138 (85.7) | 68 (90.7) | 70 (81.4) | 0.09 |
Highest temperature, °C | ||||
Median ([IQR]) | 38.0 (37.5–38.3) | 38.0 (37.6–38.4) | 38.0 (37.3–38.2) | 0.27 |
< 37.3 | 23 (14.3) | 7 (9.3) | 16 (18.6) | |
37.3–38.0 | 74 (46.0) | 34 (45.3) | 40 (46.5) | |
38.1–39.0 | 59 (36.6) | 32 (42.7) | 27 (31.4) | |
> 39.0 | 5 (3.1) | 2 (2.7) | 3 (3.5) | |
Cough | 66 (41.0) | 36 (48.0) | 30 (34.9) | 0.09 |
Fatigue | 31 (19.3) | 19 (25.3) | 12 (14.0) | 0.07 |
Body aches | 28 (17.4) | 13 (17.3) | 15 (17.4) | 0.99 |
Sputum production | 24 (14.9) | 12 (16.0) | 12 (14.0) | 0.72 |
Headache | 24 (14.9) | 13 (17.3) | 11 (12.8) | 0.42 |
Pharyngalgia | 24 (14.9) | 13 (17.3) | 11 (12.8) | 0.42 |
Chill | 15 (9.3) | 6 (8.0) | 9 (10.5) | 0.59 |
Snivel | 13 (8.1) | 8 (10.7) | 5 (5.8) | 0.26 |
Nasal congestion | 7 (4.3) | 3 (4.0) | 4 (4.7) | 0.84 |
Loss of appetite | 7 (4.3) | 3 (4.0) | 4 (4.7) | 0.84 |
Chest congestion | 5 (3.1) | 2 (2.7) | 3 (3.5) | 0.76 |
Diarrhea | 5 (3.1) | 2 (2.7) | 3 (3.5) | 0.76 |
Nausea | 4 (2.5) | 3 (4.0) | 1 (1.2) | 0.52 |
Dyspnea | 3 (1.9) | 3 (4.0) | 0 (0.0) | 0.20 |
Polypnea | 3 (1.9) | 2 (2.7) | 1 (1.2) | 0.48 |
Vomit | 3 (1.9) | 3 (4.0) | 0 (0.0) | 0.20 |
Fever + at least 1 other | 107 (66.5) | 56 (74.7) | 51 (59.3) | 0.03 |
Fever + at least 2 other | 66 (41.0) | 38 (50.7) | 28 (32.6) | 0.04 |
Fever + at least 3 other | 32 (19.9) | 18 (24.0) | 14 (16.3) | 0.02 |
White blood cell count, × 109/L (normal range 3.5–9.5) | 0.45 | |||
Median ([IQR]) | 5.0 (3.8–6.2) | 5.0 (3.7–6.0) | 5.0 (4.0–6.5) | |
Increased | 4 (2.5) | 2 (2.7) | 2 (2.3) | |
Normal | 135 (83.9) | 60 (80.0) | 75 (87.2) | |
Decreased | 22 (13.7) | 13 (17.3) | 9 (10.5) | |
Neutrophil count, ×109/L (normal range 1.8–6.3) | 0.62 | |||
Median ([IQR]) | 3.0 (2.3–3.9) | 2.9 (2.3–3.9) | 3.0 (2.3–3.9) | |
Increased | 9 (5.6) | 3 (4.0) | 6 (7.0) | |
Normal | 133 (82.6) | 63 (84.0) | 70 (81.4) | |
Decreased | 19 (11.8) | 9 (12.0) | 10 (11.6) | |
Lymphocyte count, ×109/L (normal range 1.1–3.2) | 0.30 | |||
Median ([IQR]) | 1.3 (0.9–1.7) | 1.2 (0.8–1.7) | 1.3 (1.0–1.7) | |
Increased | 3 (1.9) | 1 (1.3) | 2 (2.3) | |
Normal | 93 (57.8) | 39 (52.0) | 54 (62.8) | |
Decreased | 65 (40.4) | 35 (46.7) | 30 (34.9) |