| 6 months (n=20) | 7–9 months (n=11) | 10–12 months (n=5) | 13–24 months (n=55) | 24+ months (n=67) | |||||
---|---|---|---|---|---|---|---|---|---|---|
| Pre | Post | Pre | Post | Pre | Post | Pre | Post | Pre | Post |
Light |
| 4 | 1 | 3 |
|
| 3 | 19 | 1 | 26 |
Moderate | 1 | 6 |
| 2 |
| 2 | 1 | 11 | 2 | 11 |
Heavy | 19 | 2 | 10 | 1 | 5 | 2 | 51 | 4 | 64 | 3 |
None |
| 7 |
| 5 |
| 1 |
| 18 |
| 24 |
Variable |
| 1 |
|
|
|
|
| 3 |
| 2 |