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Table 1 Comparison between MRSA and MSSA isolates regarding characteristics of patients, biofilm production ability and antibiotic resistance

From: Ability of biofilm production and molecular analysis of spa and ica genes among clinical isolates of methicillin-resistant Staphylococcus aureus

FactorsMRSAa, N (%)MSSAb, N (%)P-valuec
Age
 0–253 (12.5)33 (27.0)0.33
 26–509 (37.5)35 (28.7) 
 51–8412 (50.0)54 (44.3) 
Sex
 Male13 (54.2)51 (41.8)0.08
 Female11 (45.8)71 (58.2) 
Clinical specimens
 Burn wound15 (62.4)41 (33.6)0.12
 Diabetic wound0 (0.0)5 (4.1) 
 Traumatic wounds0 (0.0)6 (4.9) 
 Eye6 (25.0)43 (35.2) 
 Urine0 (0.0)9 (7.4) 
 Blood1 (4.2)2 (1.7) 
 Brain abscess1 (4.2)4 (3.3) 
 Respiratory tract1 (4.2)10 (8.2) 
 Other2 (1.6) 
Hospitals
 Kashan  0.001
  Shahid Beheshti3 (12.5)49 (40.2) 
 Isfahan
  Imam Musa Kazem (Burns hospital)15(62.5)41(33.6) 
  Al-Zahra2(8.3)29(23.7) 
  Amin4(16.7)3(2.5) 
Wards
 Burns15(62.5)41(33.6)0.09
 Infectious diseases14(11.5) 
 Emergency7(29.2)47(38.5) 
 ICUd2(8.3)11(9.0) 
 Outpatients9(7.4) 
Biofilm production ability
 Strong21 (87.5)90 (73.7)0.43
 Moderate1 (4.2)5 (4.1) 
 Weak1 (4.2)18 (14.8) 
 Non-biofilm producers1 (4.2)9 (7.4) 
Antibiotic resistance
 MDRe20 (83.3)32 (26.2)0.001
 Non-MDR4 (16.7)90 (73.8) 
Total24122 
  1. aMethicillin-resistant Staphylococcus aureus
  2. bMethicillin-susceptible Staphylococcus aureus
  3. cP< 0.05 is significant
  4. dIntensive care unit
  5. eMultiple-drug resistance