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Table 2 The frequencies MRSA, VRSA and LRSA among biofilm and non-biofilm producers

From: Effect of ZnO nanoparticles on methicillin, vancomycin, linezolid resistance and biofilm formation in Staphylococcus aureus isolates

Antibiotic resistance

Biofilm production

Chi-squared

Non-biofilm producer N = 30

Biofilm producer N = 86

X2

p-value

Resistance freq. (%)

Sensitivity freq. (%)

Resistance freq. (%)

Sensitivity freq. (%)

Oxacillin

23 (76.6%)

7 (23.4%)

72 (83.72%)

14 (16.28%)

0.747

0.388

Vancomycin

17 (56.6%)

13 (43.4%)

22 (25.58%)

64 (74.42%)

10.549

0.005

Linezolid

14 (46.66%)

16 (53.34%)

20 (23.25%)

66 (76.75%)

5.883

0.015

  1. P-value ≤ 0.05 is significant