Visit | N | Mean | SD | Minimum | Maximum |
2 | 42 | 9.0 | 2.3 | 6 | 14 |
3 | 42 | 5.8 | 2.6 | 0 | 12 |
4 | 42 | 4.7 | 2.2 | 0 | 8 |
5 | 42 | 4.1 | 2.5 | 0 | 10 |