From: A case-control study of mastitis: nasal carriage of Staphylococcus aureus
 | Univariate analysis | Multivariate analysis Model 1 (n = 192) | Multivariate analysis Model 2 (n = 192) (No demographic variables) | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
 | Odds Ratio | (95% CI) | Odds Ratio | (95% CI) | P | Odds Ratio | (95% CI) | P | |||
Income | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
<Aus$70,000 | Reference | Â | Â | Reference | Â | Â | Â | - | - | - | - |
>Aus$70,001 | 0.37 | 0.20 | 0.68 | 0.31 | 0.13 | 0.71 | 0.006 | - | - | - | - |
Missing | 0.67 | 0.22 | 2.06 | 0.28 | 0.06 | 1.14 | 0.120 | - | - | - | - |
PHI | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
No | Reference | Â | Â | Reference | Â | Â | Â | - | - | - | - |
Yes | 0.27 | 0.14 | 0.51 | 0.23 | 0.10 | 0.55 | 0.001 | - | - | - | - |
Difficulty breastfeeding | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
No | Reference | Â | Â | Reference | Â | Â | Â | Reference | Â | Â | Â |
Yes | 7.76 | 3.86 | 15.58 | 6.32 | 2.53 | 15.76 | 0.000 | 4.64 | 2.11 | 10.22 | 0.001 |
Cracked nipple | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
No | Reference | Â | Â | Reference | Â | Â | Â | Reference | Â | Â | Â |
Yes | 15.02 | 5.60 | 40.33 | 9.34 | 2.99 | 29.20 | 0.000 | 9.39 | 3.24 | 27.21 | 0.000 |
Tight bra | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
No | v | Â | Â | Reference | Â | Â | Â | Reference | Â | Â | Â |
Yes | 2.31 | 1.21 | 4.41 | 3.47 | 1.30 | 9.22 | 0.013 | 2.38 | 1.06 | 5.36 | 0.036 |
Baby nasal S. aureus | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
No | Reference | Â | Â | Reference | Â | Â | Â | Reference | Â | Â | Â |
Yes | 3.70 | 1.85 | 7.40 | 3.23 | 1.30 | 8.27 | 0.017 | 2.70 | 1.19 | 6.14 | 0.018 |
Missing | 4.56 | 1.41 | 14.71 | 3.49 | 0.78 | 15.50 | 0.101 | 3.20 | 0.83 | 12.38 | 0.092 |