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Table 2 Epidemiological characteristics of preterm infants infected/colonized with Staphylococcus spp. in Neonatal Intensive Care Unit at Nîmes University Hospital

From: Successful implementation of infection control measure in a neonatal intensive care unit to combat the spread of pathogenic multidrug resistant Staphylococcus capitis

Characteristics Period 1a Period 2 Period 3 Period 4 Period 1 & Period 3 Period 2 & Period 4 p
Dec 12-Apr 15 May 15-Nov 16 Dec 16-Feb 17 Mar 17-Dec 17
Number of microorganisms isolated 1033 598 103 330 1136 928  
Mean of microorganisms isolated per month 36.9 (12–59) 31.3 (19–44) 34.3 (26–36) 33.0 (28–59) 35.6 32.2 ns
Number of S. aureus isolated 48 31 5 17 53 54  
Mean of S. aureus isolated per month 1.7 (0–5) 1.6 (0–5) 1.7 (0–4) 1.7 (0–4) 1.7 1.7 ns
Number of CoNSa isolated 527 230 44 138 591 368  
Mean of CoNS isolated per month 18.8 (7–41) 12.1 (14–33) 14.7 (13–17) 13.8 (10–24) 16.8 12.95 ns
  1. aCoNS, Coagulase negative Staphylococcus; ns, not significant corresponding to comparison of incidences between different periods (Period 1, Period 2, Period 3 and Period 4) using Fisher’s exact test