Table 3.
Comparison of resistance pattern among biofilm and nonbiofilm producers
| Antibiotics | Biofilm producers (n=69), n (%) | Nonbiofilm producers (n=31), n (%) | ||
|---|---|---|---|---|
| Sensitive | Resistant | Sensitive | Resistant | |
| Ampicillin | 6 (8.7) | 63 (91.3) | 4 (12.9) | 27 (87.1) |
| Co-trimoxazole | 18 (26.1) | 51 (73.9) | 19 (61.3) | 12 (38.7) |
| Norfloxacin | 4 (5.8) | 65 (94.2) | 6 (19.4) | 25 (80.6) |
| Ciprofloxacin | 4 (5.8) | 65 (94.2) | 8 (25.8) | 23 (74.2) |
| Gentamicin | 4 (5.8) | 65 (94.2) | 19 (61.3) | 12 (38.7) |
| Nalidixic acid | 5 (8.3) | 64 (92.7) | 8 (25.8) | 23 (74.2) |
| Amoxyclav | 1 (1.4) | 68 (98.6) | 4 (12.9) | 27 (87.1) |
| Amikacin | 35 (50.7) | 34 (49.3) | 19 (61.3) | 12 (38.7) |
| Cephalexin | 1 (1.4) | 68 (98.6) | 6 (19.4) | 25 (80.6) |
| Cefoperozone with sulbactam | 17 (24.6) | 52 (75.4) | 11 (35.5) | 20 (64.5) |
| Piperacillin/tazobactam | 40 (58) | 29 (42) | 19 (61.3) | 12 (38.7) |
| Ofloxacin | 7 (10.1) | 62 (89.9) | 6 (19.4) | 25 (80.6) |
| Imipenem | 61 (88.4) | 8 (11.6) | 30 (96.8) | 1 (3.2) |
| Nitrofurantoin | 52 (75.4) | 17 (24.6) | 26 (83.9) | 5 (16.1) |
| Ceftazidime/clavulanic acid | 15 (21.7) | 54 (78.3) | 07 (23.6) | 24 (77.4) |
χ2=16.79, P=0.01 (co-trimoxazole, norfloxacin, gentamicin, ciprofloxacin, nalidixic acid, cephalexin, imipenem, amoxyclav), χ2=2.036, P=0.92 (ampicillin, amikacin, cefoperozone with sulbactam, piperacillin/tazobactam, ofloxacin, nitrofurantoin, ceftazidime/clavulanic acid)