TABLE 4.
Comparison of clinical characteristics of hypervirulent K. pneumoniae infections and those caused by other isolates
| Clinical characteristic | No. (%) of patients infected with: |
Risk ratio (95% confidence interval)a | |
|---|---|---|---|
| Hypervirulent K. pneumoniae (n = 26) | Other isolates (n = 114) | ||
| Diabetes mellitus as an underlying condition | 12 (46.2) | 30 (26.3) | 1.75 (1.05–2.94) |
| Pneumonia | 4 (15.4) | 3 (2.6) | 5.85 (1.39–24.6) |
| Liver abscess | 4 (15.4) | 3 (2.6) | 5.85 (1.39–24.6) |
| Disseminated infections | 3 (11.5) | 2 (1.8) | 6.58 (1.16–37.4) |
| Septic shock | 6 (23.1) | 17 (14.9) | 1.55 (0.68–3.54) |
| Altered mental status | 7 (26.9) | 20 (17.5) | 1.54 (0.73–3.24) |
| 30-day crude mortality | 2 (7.7) | 7 (6.1) | 1.25 (0.28–5.69) |
a
Risk ratio of hypervirulent K. pneumoniae infections to have each characteristic compared with those caused by other isolates.