Table 1.
Demographic characteristics and clinical manifestations of norovirus-infected patients
| Total | GII.4 | Othersa | Untyped | ||
|---|---|---|---|---|---|
| GII.4 Sydney[P31] | GII. 4 Sydney[P16] | ||||
| Number of patients | 168 (100.0%) | 131 (78.0%) | 20 (11.9%) | 8 (4.8%) | 9 (5.4%) |
| Sex(male) | 103 (61.3%) | 80 (61.1%) | 12 (60.0%) | 6 (75.0%) | 5 (55.6%) |
| Age (month) | 19.0 (13.0–28.8) | 19.0 (13.0–28.0) | 19.5 (14.3–38.5) | 23.0 (21.3–36.8) | 16.0 (11.5–29.0) |
| Number of hospitalisation | 80 (47.6%) | 63 (48.1%) | 8 (40.0%) | 3 (37.5%) | 6 (66.7%) |
| Length of hospital stay(day) | 5.0 (3.0–7.5) | 5.0 (3.0–6.0) | 4.5 (3.0–9.0) | 8.0 (3.0–10.0) | 9.5 (3.0–12.0) |
| Fever | 56 (33.3%) | 41 (31.3%) | 9 (45.0%) | 4 (50.0%) | 2 (22.2%) |
| Body temperature (℃) | 37 (37–37.9) | 37 (37–37.8) | 37 (37–38) | 37.5 (37–39.73) | 37 (36.6–37.4) |
| Vomiting | 141 (83.9%) | 111 (84.7%) | 17 (85.0%) | 7 (87.5%) | 6 (66.7%) |
| Vomiting duration(day) | 2.0 (1.0–3.0) | 2.0 (1.0–3.0) | 1.5 (1.0–3.0) | 1 (1.0–1.8) | 1 (0.0–3.5) |
| Max. no. vomiting episodes/24 h | 3.0 (2.0–6.0) | 3.0 (2.0–6.0) | 4.0 (3.0–9.5) | 4.0 (1.5–4.8) | 3.0 (0.0–6.0) |
| Diarrhoea | 132 (79.0%) | 104 (80.0%) | 15 (75.0%) | 4 (50.0%) | 9 (100.0%) |
| Diarrhoea duration (day) | 2.0 (1.0–5.0) | 2.0 (1.0–5.0) | 2.0 (0.3–6.0) | 0.5 (0.0–1.0)b | 2.0 (1.0–3.0) |
| Max. no. diarrhoea stools/24 h | 3.0 (1.0–6.0) | 3.0 (1.0–5.0) | 5.0 (0.3–8.8) | 1.0 (0.0–2.8)c | 4.0 (3.0–4.5) |
| Anorexia | 82 (48.8%) | 70 (53.4%) | 8 (40.0%) | 2 (25.0%) | 2 (22.2%) |
| Dehydration | 15 (8.9%) | 13 (9.9%) | 1 (5.0%) | 1 (12.5%) | 0 (0.0%) |
| Abdominal pain | 22 (13.1%) | 15 (11.5%) | 4 (20.0%) | 2 (25.0%) | 1 (11.1%) |
| Bloating | 11 (6.5%) | 10 (7.6%) | 1 (5.0%) | 0 (0.0%) | 0 (0.0%) |
| Nausea | 21 (12.5%) | 15 (11.5%) | 3 (15.0%) | 1 (12.5%) | 2 (22.2%) |
| Seizures | 38 (22.6%) | 30 (22.9%) | 5 (25.0%) | 1 (12.5%) | 2 (22.2%) |
| Modified Vesikari scale (MVS) | 10.0 (8.0–13.0) | 10.0 (8.0–13.0) | 10.0 (8.0–14.5) | 8.0 (6.3–10.0)d | 9.0 (7.0–13.0) |
aThe “Others” group contained three genotypes: GII.2[P16], GII.6[P7] and GII.13[P21]
bp = 0.004 < 0.05: GII.4 (2.0; IQR: 1.0–5.0) vs. Others
cp = 0.011 < 0.05: GII.4 (4.0; IQR: 1.0–6.0) vs. Others
dp = 0.044 < 0.05: GII.4 (10.0; IQR: 8.0–13.0) vs. Others