Prevalence of Staphylococcus aureus early and during intervention by study group
| First month intervention | Greater than 1 month intervention | Total study | χ2 | p-Value | |
| Cups | 4/38 (10.5) | 13/139 (9.4) | 17/177 (9.6) | 0.05 | 0.83 |
| Pads | 6/44 (13.6) | 21/197 (10.7) | 27/241 (11.2) | 0.32 | 0.57 |
| Control | 5/33 (15.2) | 16/153 (10.5) | 21/186 (11.3) | 0.6 | 0.44 |
| Total | 15/115 (13.0) | 50/439 (10.2) | 65/604 (10.8) | 0.77 | 0.38 |
| χ2 linear trend | 0.34 | 0.09 | 0.26 | ||
| p-value | 0.56 | 0.76 | 0.61 |