Table 2 Distribution of matching variables across cases and controls
From: Risk factors for community-acquired pneumonia among adults in Kenya: a case–control study
Matching variable | Categories | Cases | % | Controls | % |
|---|---|---|---|---|---|
Sex | Male | 177 | 63% | 749 | 62% |
Female | 104 | 37% | 453 | 38% | |
Age group | 15–24 | 65 | 23% | 267 | 22% |
25–29 | 48 | 17% | 265 | 22% | |
30–34 | 63 | 22% | 193 | 16% | |
35–44 | 61 | 22% | 255 | 21% | |
45–54 | 22 | 8% | 110 | 9% | |
Route of recruitment | CPGH Filter clinic | 45 | 16% | 214 | 18% |
CPGH Casualty | 188 | 67% | 785 | 65% | |
Kilifi District Hospital | 48 | 17% | 203 | 17% |