Table 2. Prevalence and incidence of PD in this study.
| 2006 | 2007 | 2008 | 2009 | |
|---|---|---|---|---|
| Prevalence | 545 | 670 | 806 | 932 |
| Incidence | 188 | 223 | 258 | 257 |
Data are presented as n.
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