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Table 3 Association of MRSA isolates with patient characteristics in early SSI of orthopedic implants

From: Characterization of the clonal profile of methicillin resistant Staphylococcus aureus isolated from patients with early post-operative orthopedic implant based infections

All types of implant infections (N = 50) ST239 MRSA (n = 33) ST22 MRSA and others (n = 17) Comparison ST239 MRSA vs. ST22 and other ST types p-value*
Patient population: female 11 (36.37%) 5 (29.4%) 0.2
Mean age 40.21 years 37.35 years 0.5
Obesity (BMI > 30) 8 (24.24%) 4 (23.52%) 0.9
Mean time between implantation and onset of infection 14.21 days 11.29 days 0.16
Mean duration of antibiotics (antibiotic exposure) 28.51 days 19.58 days 0.000*
Elective surgery 8 (24.24%) 2 (11.76%) 0.2
Mean no. of surgical interventions (repeated debridement) 2.75 2.52 0.37
Removal of infected implant 26 (78.79%) 8 (47.05%) 0.02*
Re-implantation of a new implant 21 (63.64%) 6 (35.29%) 0.05*
Cure 23 (69.69%) 13 (76.47%) 0.00*
Mean length of hospital stay 34.9 days 27.41 days 0.02*
  1. *Statistically significant p-values of ≤ 0.05 (two-tailed)