Table 5.
Multivariable logistic regression models examining gender and age as risk factors for acute gastrointestinal illness in three sentinel sites in Cuba during the dry and rainy seasons
| Variable | Overall | Cienfuegos | Centro Habana | Santiago de Cuba | ||||
|---|---|---|---|---|---|---|---|---|
| Dry (n=3,187) | Rainy (n=3,212) | Dry (n=548) | Rainy (n=548) | Dry (n=1,084) | Rainy (n=1,109) | Dry (n=1,555) | Rainy (n=1,555) | |
| Odds ratio (95% confidence interval) | ||||||||
| Gender | ||||||||
| Male | 1.4 (1.0-2.0)∗ | 1.1 (0.9-1.4) | 0.8 (0.3-2.2) | 1.0 (0.6-1.7) | 0.9 (0.5-1.4) | 1.2 (0.8-1.8) | 2.9 (1.6-5.1)∗ | 1.2 (0.9-1.6) |
| Female | Ref | Ref | Ref | Ref | Ref | Ref | Ref | Ref |
| Age-group (years) | ||||||||
| 0-12 | 4.5 (2.0-10.0)∗ | 2.9 (2.0-4.1)∗ | 4.1 (0.4-37.9) | 1.6 (0.5-5.0) | 1.7 (0.5-5.9) | 2.4 (1.3-4.6)∗ | 22.7 (6.0-86.2)∗ | 4.9 (2.9-8.3)∗ |
| 13-17 | 2.1 (1.0-4.6)∗ | 2.2 (1.4-3.5)∗ | ∗∗ | 0.5 (0.1-3.7) | 1.2 (0.4-3.5) | 5.7 (2.9-11.2)∗ | 4.4 (1.4-13.7)∗ | 1.4 (0.6-3.0) |
| 18-24 | 1.1 (0.6-1.9) | 1.0 (0.7-1.5) | ∗∗ | 0.8 (0.3-2.0) | 1.3 (0.7-2.7) | 2.0 (1.1-3.8)∗ | 1.4 (0.5-3.8) | 0.8 (0.5-1.4) |
| 25-54 | Ref | Ref | Ref | Ref | Ref | Ref | Ref | Ref |
| 55-64 | 0.5 (0.2-0.9) | 1.0 (0.7-1.3) | 0.6 (0.1-2.7) | 1.5 (0.8-2.7) | 0.5 (0.2-1.3) | 1.4 (0.8-2.3) | 0.5 (0.2-1.3) | 0.9 (0.6-1.3) |
| 65+ | 1.1 (0.7-1.6) | 1.0 (0.8-1.3) | 0.7 (0.2-2.1) | 1.2 (0.7-2.4) | 1.2 (0.6-2.3) | 1.4 (0.8-2.3) | 1.3 (0.7-2.6) | 0.9 (0.6-1.2) |
∗Significant at p<0.05
∗∗An odds ratio could not be calculated because there were zero cases in that category
CI=Confidence interval; Ref=Reference group