Table 2.
Characteristics of patients with diarrhoea and their matched control in Hunan and Hebei, China, May 2011 to January 2013
| Characteristic | Cases (n = 461), n (%) | Controls (n = 461), n (%) |
|---|---|---|
| Age group | ||
| 0–6 months | 125 (27%) | 112 (24%) |
| 6–11 months | 177 (38%) | 179 (39%) |
| 12–24 months | 132 (29%) | 140 (30%) |
| 24–36 months | 17 (4%) | 20 (4%) |
| 36–59 months | 10 (2%) | 10 (2%) |
| Sex | ||
| Male | 300 (65%) | 297 (64%) |
| Female | 161 (35%) | 164 (36%) |
| Location | ||
| Hunan | 222 (48%) | 222 (48%) |
| Hebei | 239 (52%) | 239 (52%) |
| No. pathogens | ||
| 0 | 84 (18%) | 246 (53%) |
| 1 | 192 (42%) | 146 (32%) |
| 2 | 115 (25%) | 58 (13%) |
| 3 | 53 (11%) | 8 (2%) |
| 4 | 17 (3%) | 3 (0%) |