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Table 5 Babies' nasal results of a case control study of mastitis.

From: A case-control study of mastitis: nasal carriage of Staphylococcus aureus

  Cases N (%) Controls N (%)    
  S. aureuspos S. aureusneg S. aureuspos S. aureusneg Odds Ratio 95% CI
Babies 1–2 w 41 (91) 4 2 (67) 1 6.67 0.08 156.3
Babies 3–4 w 22 (82) 5 17 (53) 15 3.71 0.99 15.45
Babies 5–6 w 7 (78) 2 33 (59) 23 2.52 0.42 26.64
Babies >6 w 2 (29) 5 0 (0) 2    
Total 72 (82) 16 52 (56) 41 3.49* 1.38 8.83
  1. (n = 88 infants of mothers with mastitis and 93 control infants), Melbourne, Australia, 2002–2004: stratified by age.
  2. *Mantel-Haenszel Weighted Odds Ratio.
  3. w = week(s).