Table 2. Comparisons of the transmission frequencies of Klebsiella pneumoniae carbapenemase (KPC)- and New Delhi metallo-beta-lactamase (NDM-1)- carbapenemase producing enterobacteriaceae (CPE).
| Variable/Index cases | Total (N = 211) | KPC (N = 52) | NDM-1 (N = 109) | OR (95% CI) | P-value |
|---|---|---|---|---|---|
| Contact patients | 2,689 | 873 | 1,248 | - | - |
| Screened contact patients | 1,369 (51) | 448 (51) | 649 (52) | 0.99 (0.87–1.11) | 0.83 |
| Contact patients per index case, median (IQR) | 10.0 (6.0–16.0) | 12.0 (9.0–22.0) | 9.0 (5.0–15.0) | - | 0.08 |
| CPE transmission rate (%) | 3.2% (44/1,369) | 5.4% (24/448) | 2.7% (16/649) | 2.17 (1.10–4.38) | 0.01 |
Data are presented as number of patients (%), unless otherwise specified.
OR, odd ratio; IQR, interquatile range.