Table 5 Subgroup analysis of the association between chronic periodontitis and the risk of community-acquired pneumonia
From: Chronic periodontitis and community-acquired pneumonia: a population-based cohort study
| Â | Non-severe CPa | Severe CP |
|---|---|---|
Community-acquired pneumonia | ||
 Men | ||
  Number of cases | 6872 | 1559 |
  HR (95% CI) | 1.00 | 0.98(0.92–1.04) |
 Women | ||
  Number of cases | 5168 | 1239 |
  HR (95% CI) | 1.00 | 1.03(0.97–1.10) |
 Smoker | ||
  Number of cases | 2908 | 667 |
  HR (95% CI) | 1.00 | 1.01(0.93–1.10) |
 Non-smoker | ||
  Number of cases | 8115 | 1896 |
  HR (95% CI) | 1.00 | 1.00(0.95–1.05) |
 CCI = 0 | ||
  Number of cases | 2355 | 535 |
  HR (95% CI) | 1.00 | 1.01(0.92–1.11) |
 CCI = 1 or 2 | ||
  Number of cases | 6417 | 1499 |
  HR (95% CI) | 1.00 | 1.00(0.96–1.04) |
 CCI ≥ 3 | ||
  Number of cases | 3268 | 764 |
  HR (95% CI) | 1.00 | 0.97(0.91–1.02) |