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Table 1 Characteristics of newborns with SA-infections

From: Epidemiology, antibiotic consumption and molecular characterisation of Staphylococcus aureus infections – data from the Polish Neonatology Surveillance Network, 2009–2012

  Infants with MSSA-infections [N = 39] Infants with MRSA-infections [N = 19] P-value
Risk factors of patients average (95%CI) average (95%CI)
Birth weight [grams] 873.7 (791.0–956.5) 948.3 (817.3–1079.4) 0.304
Gestational age [weeks] 27.7 (26.8–28.6) 27.2 (25.6–28.8) 0.316
CRIB 5.5 (3.5–7.5) 2.4 (1.9–6.8) 0.049
Apgar (1 min.) 4.9 (4.3–5.6) 4,7 (3.7–5.8) 0.860
Apgar (5 min.) 6.2 (5.6–6.8) 6.0 (4.8–7.2) 0.817
length of stay in hospital [days] 56.2 (49.1–63.2) 48.4 (37.1–59.8) 0.197
length of hospital stay until infection [days] 23.8 (19.7–28.5) 14.7 (9.8–19.7) 0.019
DOT 11.2 (9.6–12.7) 12.3 (7.7–16.8) 0.885
DDD 30.2 (22.6–37.8) 26.0 (16.4–33.5) 0.457
Risk factors of patients number (%) number (%) OR (95%CI) P-value
Female gender 19 (48.7) 7 (36.8) 0.614 (0.200–1.889) 0.393
Breast feeding 4 (10.5) 1 (5.6) 0.486 (0.051–4.677) 0.542
Trophic feeding 21 (55.3) 12 (66.7) 1.470 (0.477–4.525) 0.418
Total parenteral nutrition 25 (65.8) 15 (79.0) 2.1 (0.583–7.571) 0.306
Fatal cases 0 (0.0) 2 (10.5) n/a; n/a; 0.039
  1. CRIB, clinical risk index for babies; DOT, the aggregate sum of the number of days during which at least 1 dose of antibiotic was received for each one received, days of treatment; DDD, defined daily dose expressed in days.