Table 3. Proportion of symptoms with respect to type of illness.
| Symptoms | ILI n/N (%) | P-value | SARI n/N (%) | P-value | ||
|---|---|---|---|---|---|---|
| Influenza Neg | Influenza Pos | Influenza Neg | Influenza Pos | |||
| Cough | 6422/7019 (91.5) | 2237/2332 (95.9) | < 0.001* | 1039/1192 (87.2) | 249/256 (97.3) | < 0.001* |
| Rhinorrhoea | 5883/6715 (87.6) | 2102/2254 (93.3) | < 0.001* | 944/1164 (81.1) | 220/256 (85.9) | 0.073 |
| Asthenia | 3770/5524 (68.2) | 1450/1906 (76.1) | < 0.001* | 772/1023 (75.5) | 174/223 (78.0) | 0.438 |
| Headache | 1886/3932 (48.0) | 900/1493 (60.3) | < 0.001* | 267/650 (41.1) | 61/160 (38.1) | 0.530 |
| Sore throat | 1366/3944 (34.6) | 542/1492 (36.3) | 0.252 | 252/743 (33.9) | 41/170 (24.1) | 0.014* |
| Vomitting | 1478/5528 (26.7) | 420/1838 (22.9) | 0.001* | 425/1030 (41.2) | 75/223 (33.6) | 0.035* |
| Arthralgia | 885/3455 (25.6) | 437/1263 (34.6) | < 0.001* | 161/601 (26.8) | 38/154 (24.7) | 0.682 |
| Noisy breath | 1334/5390 (24.7) | 287/1794 (16.0) | < 0.001* | 404/1010 (40.0) | 68/218 (31.2) | 0.017* |
| Myalgia | 769/3495 (22.0) | 363/1269 (28.6) | < 0.001* | 128/612 (20.9) | 32/157 (20.4) | 1.000 |
| Shortness of breath | 1174/5263 (22.3) | 260/1759 (14.8) | < 0.001* | 362/984 (36.8) | 53/223 (23.8) | < 0.001* |
| Diarrhoea | 1085/5515 (19.7) | 219/1794 (12.2) | < 0.001* | 339/1028 (33.0) | 42/218 (19.3) | < 0.001* |
| Conjonctivitis | 993/5291 (18.8) | 362/1764 (20.5) | 0.108 | 210/1015 (20.7) | 30/227 (13.2) | 0.009* |
| Ear pain | 615/3861 (15.9) | 212/1391 (15.2) | 0.577 | 70/669 (10.5) | 15/171 (8.8) | 0.572 |
| Skin rash | 509/5102 (10.0) | 93/1699 (5.5) | < 0.001* | 84/947 (8.9) | 17/216 (7.9) | 0.690 |
Neg: Negative; Pos: Positive