Baseline | 12 months | |||
---|---|---|---|---|
Mean (mm) S.D. n Range (mm) |
0.22 0.33 143 0.00 – 1.53 |
0.73 0.39 143 0.0 – 1.87 |
||
Distribution | n | % | n | % |
0 mm | 97 | 67.8 | 13 | 9.1 |
0.5 mm | 36 | 25.2 | 63 | 44.1 |
1.0 mm | 7 | 4.9 | 54 | 37.8 |
1.5 mm | 3 | 2.1 | 11 | 7.7 |
2.0 mm | 0 | 0 | 2 | 1.4 |