Table 4 Comparison of microbiological characteristics of clinical K. pneumoniae strains
Microbiological characteristics of isolates | CAP (n = 68) | HCAP (n = 74) | HAP (n = 134) | p value | ||
|---|---|---|---|---|---|---|
CAP vs. HCAP | HCAP vs. HAP | CAP vs. HAP | ||||
Capsular type K1 | 13 (19.1) | 8 (10.8) | 13 (9.7) | 0.164 | 0.799 | 0.059 |
Capsular type K2 | 14 (20.6) | 15 (20.3) | 16 (11.9) | 0.963 | 0.106 | 0.102 |
Capsular type K1 and K2 | 27 (39.7) | 23 (31.1) | 29 (21.6) | 0.282 | 0.132 | 0.007 |
Capsular type K1, K2, K5, K20, K54, and K57 | 46 (67.6) | 35 (47.3) | 50 (37.3) | 0.014 | 0.161 | < 0.001 |
Presence of plasmid rmpA | 53 (77.9) | 40 (54.1) | 53 (39.6) | 0.003 | 0.044 | < 0.001 |
Presence of plasmid rmpA2 | 49 (72.1) | 38 (51.4) | 52 (38.8) | 0.011 | 0.080 | < 0.001 |
Hvpervirulent K. pneumoniaea | 54 (79.4) | 41 (55.4) | 55 (41.0) | 0.002 | 0.047 | < 0.001 |
Hvpervirulent K. pneumoniae with antimicrobial resistanceb | 3 (4.4) | 7 (9.5) | 13 (9.7) | 0.330 | 0.955 | 0.272 |
Hvpervirulent K. pneumoniae with multidrug resistancec | 2 (2.9) | 4 (5.4) | 8 (6.0) | 0.682 | 1.000 | 0.500 |