Table 6 Distribution of antimicrobial resistance by serotype. Only serotypes represented by more than 10 isolates are reported. Correlation between frequency of serotypes in study population and in MDR fraction is given in the last column
serotypes | N (%) | Ceftazidime (%) | Clarithromycin (%) | Clindamycin (%) | Penicillin (%) | Tetracyclin (%) | Trimethropim/ sulfamethoxazole (%) | MDR Fraction N (%) | p value |
|---|---|---|---|---|---|---|---|---|---|
11A | 60 (6.4) | 8.3 | 6.7 | 3.3 | 5.0 | 0.0 | 10.0 | 5 (8,3) | 0.090 |
23A | 58 (6.2) | 0.0 | 19.0 | 19.0 | 1.7 | 19 | 24.1 | 2 (3,4) | 0.007* |
19A | 52 (5.5) | 67.3 | 53.8 | 50 | 67.3 | 55.8 | 30.8 | 32 (61,5) | < 0.001* |
3 | 50 (5.3) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.0 | 0 (0,0) | 0.001* |
6C/D | 44 (4.7) | 6.8 | 29.5 | 27.3 | 27.3 | 25.0 | 0.0 | 11 (25,0) | 0.001* |
23B | 39 (4.2) | 12.8 | 0.0 | 0.0 | 30.8 | 0.0 | 28.2 | 11 (28,2) | 0.093 |
19F | 37 (3.9) | 32.4 | 56.8 | 48.6 | 37.8 | 54.1 | 18.9 | 14 (37,8) | 0.001* |
23F | 37 (3.9) | 13.5 | 16.2 | 10.8 | 16.2 | 10.8 | 16.2 | 6 (16,2) | 0.934 |
15B/C | 35 (3.7) | 2.9 | 8.6 | 0.0 | 22.9 | 11.4 | 31.4 | 3 (8,6) | 0.255 |
35B | 34 (3.6) | 38.2 | 8.8 | 5.9 | 38.2 | 2.9 | 5.9 | 3 (8,8) | 0.283 |
35F | 33 (3.5) | 6.1 | 3.0 | 3.0 | 0.0 | 0.0 | 0.0 | 1 (3,0) | 0.050 |
22F | 32 (3.4) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0 (0,0) | 0.017* |
6A | 28 (3.0) | 39.3 | 39.3 | 10.7 | 39.3 | 10.7 | 25.0 | 10 (35,7) | 0.015* |
10A | 28 (3.0) | 7.1 | 10.7 | 7.1 | 7.1 | 10.7 | 10.7 | 2 (7,1) | 0.243 |
6B | 25 (2.7) | 24.0 | 32.0 | 28.0 | 20.0 | 28.0 | 24.0 | 8 (32,0) | 0.081 |
15A | 24 (2.6) | 58.3 | 62.5 | 62.5 | 62.5 | 50 | 8.3 | 15 (62,5) | < 0.001* |
17F | 23 (2.5) | 8.7 | 4.3 | 4.3 | 8.7 | 4.3 | 0.0 | 1 (4,3) | 0.172 |
24F | 21 (2.2) | 28.6 | 28.6 | 28.6 | 28.6 | 28.6 | 19.0 | 6 (28,6) | 0.260 |
18C | 20 (2.1) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 10.0 | 0 (0,0) | 0.079 |
16F | 19 (2.0) | 0.0 | 15.8 | 15.8 | 0.0 | 15.8 | 42.1 | 1 (5,3) | 0.282 |
37 | 17 (1.8) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 5.9 | 0 (0,0) | 0.117 |
7F | 17 (1.8) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0 (0,0) | 0.117 |
9 N | 17 (1.8) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0 (0,0) | 0.117 |
14 | 16 (1.7) | 81.3 | 31.3 | 25.0 | 81.3 | 18.8 | 43.8 | 8 (50,0) | 0.001* |
33F | 15 (1.6) | 0.0 | 33.3 | 33.3 | 0.0 | 26.7 | 6.7 | 1 (6,7) | 0.462 |
21 | 13 (1.4) | 0.0 | 0.0 | 0.0 | 7.7 | 0.0 | 0.0 | 0 (0,0) | 0.201 |
31 | 13 (1.4) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0 (0,0) | 0.201 |
34 | 13 (1.4) | 61.5 | 0.0 | 0.0 | 30.8 | 0.0 | 23.1 | 0 (0,0) | 0.201 |