Table 4 Comparison of microbiological characteristic among clinical isolates of community-acquired (CA), healthcare-associated (HCA), and nosocomial K. pneumoniae bacteremia
Microbiological characteristics of isolates | CA (n = 70) | HCA (n = 102) | Nosocomial (n = 165) | p value | ||
|---|---|---|---|---|---|---|
CA vs. HCA | HCA vs. Nosocomial | CA vs. Nosocomial | ||||
Capsular type K1 | 12 (17.1) | 10 (9.8) | 8 (4.8) | 0.157 | 0.117 | 0.002 |
Capsular type K2 | 13 (18.6) | 12 (11.8) | 9 (5.5) | 0.213 | 0.063 | 0.002 |
Capsular type K1 and K2 | 25 (35.7) | 22 (21.6) | 17 (10.3) | 0.041 | 0.011 | < 0.001 |
Capsular type K1, K2, K5, K20, K54, and K57 | 36 (51.4) | 37 (36.3) | 32 (19.4) | 0.048 | 0.002 | < 0.001 |
Isolates with both antimicrobial resistancea and capsular type K1, K2, K5, K20, K54, and K57 | 2 (2.9) | 6 (5.9) | 9 (5.5) | 0.475 | 0.883 | 0.513 |
Isolated with both multidrug resistanceb and capsular type K1, K2, K5, K20, K54, and K57 | 2 (2.9) | 3 (2.9) | 7 (4.2) | 1.000 | 0.746 | 1.000 |
Presence of plasmid rmpA | 42 (60.0) | 39 (38.2) | 36 (21.8) | 0.005 | 0.004 | < 0.001 |
Presence of plasmid rmpA2 | 41 (58.6) | 37 (36.3) | 35 (21.2) | 0.004 | 0.007 | < 0.001 |