| DP2 | DP3 | DP4 | DP4.5 | DP5 |
---|---|---|---|---|---|
1st year (n = 50) | 3.4 (5.4) | 23.0 (17.9)* | 20.8 (12.6)* | 3.5 (6.0) | 49.3 (18.2) |
2nd year (n = 43) | 3.0 (7.3) | 17.4 (13.7) | 15.6 (13.6) | 5.1 (7.1) | 51.2 (16.3) |
3rd year (n = 49) | 3.1 (6.0) | 15.6 (13.6) | 26.5 (15.9) | 5.7 (7.9) | 49.1 (16.3) |
4th year (n = 52) | 3.8 (6.7) | 20.7 (15.3) | 19.0 (10.4) | 3.4 (6.3) | 53.2 (17.0) |
5th year (n = 47) | 4.3 (6.5) | 15.2 (13.5) | 27.1 (12.5) | 4.8 (8.1) | 48.6 (15.2) |
6th year (n = 51) | 5.1 (7.0) | 19.0 (13.2) | 24.5 (14.1) | 4.5 (7.1) | 46.9 (16.9) |
residents (n = 66) | 2.3 (6.5) | 14.8 (13.6) | 27.0 (14.9) | 6.2 (8.8) | 49.7 (19.8) |
 | [NS] | [p < 0.05] | [p < 0.01 ] | [NS] | [NS] |