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Frequency of dressing change
| 2005 | 2006 | 2007 | |
|---|---|---|---|
| Daily or more frequently (%) | 48 | 14 | 15 |
| Once per 2 days (%) | 26 | 5 | 19 |
| Once per 3 days (%) | 19 | 17 | 37 |
| Once per 4 days (%) | 2 | 15 | 13 |
| Once per 5 days (%) | 0 | 22 | 0 |
| Once per 6 days (%) | 0 | 9 | 0 |
| Once per 7 days (%) | 6 | 18 | 18 |
