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Table 4 Antimicrobial resistance pattern of K. pneumoniae among biofilm producer and non-producer strains

From: Correlation between antimicrobial resistance and biofilm formation capability among Klebsiella pneumoniae strains isolated from hospitalized patients in Iran

Biofilm formation ability Strong (n = 25) Moderate (n = 19) Weak (n = 31) Non-biofilm formation (n = 25)
Antibiotics R No. (%) I No. (%) S No. (%) R No. (%) I No. (%) S No (%) RNo. (%) I No. (%) S No (%) R No. (%) I No. (%) S No. (%)
SXT 13 (52) 12 (48) 11 (57.8) 1 (5.2) 7 (36.8) 12 (38.7) 3 (9.6) 16 (51.6) 16 (68) 1 (4) 8 (28)
CTX 15 (60) 10 (40) 12 (63.1) 2 (10.5) 5 (26.3) 14 (45.1) 4 (12.9) 13 (41.9) 9 (36) 4 (16) 12 (48)
FEP 12 (48) 3 (12) 10 (40) 10 (52.6) 1 (5.2) 8 (42.1) 11 (35.4) 1 (3.2) 19 (61.2) 9 (36) 3 (12) 13 (52)
AN 4 (16) 1 (4) 20 (80) 1 (5.2) 2 (10.5) 16 (84.2) 1 (3.2) 3 (9.6) 27 (87.09) 1 (4) 1 (4) 23 (92)
IPM 13 (52) 1 (4) 11 (44) 9 (47.3) 10 (52.6) 6 (19.3) 1 (3.2) 24 (77.4) 7 (28) 18 (72)
MEM 14 (56) - 11 (44) 7 (36.8) 1 (5.2) 11 (57.8) 8 (25.8) 23 (74.1) 8 (32) 1 (4) 16 (64)
CRO 13 (52) 2 (8) 10 (40) 11 (57.8) 1 (5.2) 7 (36.8) 10 (32.2) 3 (9.6) 18 (58.06) 8 (32) 4 (16) 13 (52)
GM 8 (32) 17 (68) 4 (21.05) 1 (5.2) 13 (68.4) 9 (29.03) 22 (70.9) 3 (12) 2 (8) 20 (80)
CAZ 12 (48) 4 (16) 9 (36) 12 (63.1) 1 (5.2) 6 (31.5) 13 (41.9) 3 (9.6) 15 (48.3) 9 (36) 1 (4) 15 (60)
CIP 17 (68) 3 (12) 5 (20) 12 (63.1) 7 (36.8) 14 (45.1) 4 (12.9) 13 (41.9) 10 (40) 2 (8) 13 (52)
  1. R resistant, S susceptible, I intermediate resistant, SXT Trimethoprim-sulfamethoxazole, CTX cefotaxime, FEP cefepime, AN amikacin, IPM imipenem, MEM meropenem, CRO ceftriaxone, GM gentamicin, CAZ ceftazidime, and CIP ciprofloxacin
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