| Before the intervention | After the intervention for 1 month | After the intervention for 3 months | After the intervention for 6 months | |
| Not applicable | 18 (49) | 18 (49) | 22 (59) | 25 (68) |
| Risk level 1 | 7 (19) | 16 (43) | 12 (32) | 9 (24) |
| Risk level 2 | 12 (32) | 3 (8) | 3 (8) | 3 (8) |