Table 4.
Characteristics of patients and timing of specimen collection and testing, April 21, 2009 to February 25, 2010, sentinel network, Ontario, Canada
| Patient characteristics | No virus detected n (%) | Single infection n (%) | Co‐infection n (%) | Overall number | Chi‐square P‐value |
|---|---|---|---|---|---|
| Patients | n = 350 (34·4) | n = 512 (50·2) | n = 156 (15·3) | n = 1018 | |
| Age category (years) | |||||
| 0–4 | 28 (27·5) | 51 (50·0) | 23 (22·5) | 102 | <0·001* |
| 5–14 | 44 (22·3) | 115 (58·4) | 38 (19·3) | 197 | |
| 15–29 | 85 (30·1) | 148 (52·3) | 50 (17·7) | 283 | |
| 30–54 | 121 (40·7) | 145 (48·8) | 31 (10·4) | 297 | |
| 55–64 | 34 (44·2) | 38 (49·4) | 5 (6·5) | 77 | |
| 65+ | 38 (61·3) | 15 (24·2) | 9 (14·52) | 62 | |
| Median (Range) | 34 (0–92) | 20 (0–96) | 18 (0–88) | 23 (0–96) | |
| Sex | |||||
| Female | 207 (34·6) | 303 (50·6) | 89 (14·9) | 599 | 0·8 |
| Male | 143 (34·1) | 209 (49·9) | 67 (16·0) | 419 | |
| Chronic Condition | |||||
| No | 267 (33·6) | 412 (51·8) | 116 (14·6) | 795 | 0·4 |
| Yes | 82 (37·4) | 98 (44·8) | 39 (17·8) | 219 | |
| Unknown | 1 (25·0) | 2 (50·0) | 1 (25·0) | 4 | |
| Time to specimen collection** (days) | |||||
| 0–2 | 192 (32·9) | 282 (48·5) | 108 (18·6) | 582 | <0·01* |
| 3–7 | 158 (36·3) | 230 (52·8) | 48 (11·0) | 436 | |
| Median (Range) | 2 (0–7) | 2 (0–7) | 2 (0–7) | 2 (0–7) | |
*P‐value <0·05 is considered significant.
**Time to specimen collection = Collection date‐symptom onset date.