Variables | Pneumococcal carriage (+) | Pneumococcal carriage (−) | Subtotal | Odds ratio (95% CI) (univariate) | P | Odds ratio (95% CI) (multiple) | P |
---|---|---|---|---|---|---|---|
Gender | |||||||
 Male | 161 (34.1%) | 311 | 472 | 0.92 (0.69–1.23) | 0.5874 | 0.85 (0.63–1.14) | 0.2725 |
 Female | 124 (35.9%) | 221 | 345 | ||||
Age group | |||||||
 6–11 m | 74 (39.8%) | 112 | 186 | Reference |  | 0.63 (0.43–0.93)* | 0.0203 |
 1–2 yr | 175 (37.1%) | 297 | 472 | 0.89 (0.63–1.26) | 0.5189 | ||
  ≥ 3 yr | 36 (22.6%) | 123 | 159 | 0.44 (0.28–0.71) | 0.0007 | ||
Daycare attendance | |||||||
 Yes | 156 (37.9%) | 256 | 412 | 1.30 (0.98–1.74) | 0.0714 | 1.56 (1.13–2.17) | 0.0073 |
 No | 129 (31.9%) | 276 | 405 | ||||
Situation | |||||||
 ARI | 190 (39.1%) | 296 | 486 | 1.59 (1.18–2.15) | 0.0022 | 1.33 (0.93–1.90) | 0.1137 |
 Healthy children | 95 (28.7%) | 236 | 331 | ||||
Living in a large family (≥ 5 persons) | |||||||
 Yes | 153 (34.9%) | 286 | 439 | 1.00 (0.75–1.33) | 0.9836 |  |  |
 No | 132 (34.9%) | 246 | 378 | ||||
Prior antibiotic use | |||||||
 Yes | 100 (43.7%) | 129 | 229 | 1.69 (1.23–2.31) | 0.0010 | 1.42 (0.98–2.05) | 0.0621 |
 No or unknown | 185 (31.5%) | 403 | 588 | ||||
Season | |||||||
 Apr-Jun 2008 | 41 (38.3%) | 66 | 107 | Reference |  |  |  |
 Jul-Sept 2008 | 142 (31.8%) | 305 | 447 | 0.75 (0.48–1.16) | 0.1956 |  |  |
 Oct-Dec 2008 | 54 (41.2%) | 77 | 131 | 1.13 (0.67–1.90) | 0.6491 |  |  |
 Jan-Mar 2009 | 48 (36.4%) | 84 | 132 | 0.92 (0.54–1.56) | 0.7560 |  |  |