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Table 2 Overall frequency of risk factors and amongst metronidazole and imipenem resistant strains

From: Antimicrobial susceptibility against metronidazole and carbapenem in clinical anaerobic isolates from Pakistan

Risk factors Total (189) Metronidazole resistance (total = 33) Imipenem resistance (total = 26 metronidazole resistant strains)
N (%) N (%) N (%)
Age
 < 18 years 31 (16.4) 3 (9.09) 1 (3.8)
 18–60 years 126 (66.7) 24 (72.7) 3 (11.5)
 > 60 years 32 (16.9) 6 (18.2) 3 (11.5)
Gender
 Male 129 (68.2) 26 (78.8) 7 (26.9)
 Female 60 (31.7) 7 (21.2) 0
Prolonged hospital staya 43 (22.7) 9 (27.3) 3 (11.5)
Diabetes Mellitus 26 (13.7) 2 (6.06) 0
Malignancy/Transplant 11 (5.82) 5 (15.1) 1 (3.8)
Dialysis 2 (1.06) 1 (3.03) 0
Bacteremia 35 (18.5) 9 (27.3) 3 (11.5)
Skin and soft tissue infections 49 (25.9) 6 (18.2) 1 (3.8)
Head and neck infections 18 (9.52) 1 (3.03) 0
Intra-abdominal infections 66 (34.9) 13 (39.4) 2 (7.7)
Empyema lung 6 (3.17) 2 (6.06) 1 (3.8)
Genitourinary tract infections 17 (8.99) 2 (6.06) 0
Expired 10 (5.29) 3 (9.09) 3 (11.5)
  1. aPrimary exposure