| Baseline-2009 | Follow-up 1-2010 | Follow-up 2-2011 | |||
---|---|---|---|---|---|---|
Number of groups eaten | I | C | I | C | I | C |
N = 500 | N = 498 | N = 522 | N = 539 | N = 500 | N = 543 | |
No. (%) | No. (%) | No. (%) | No. (%) | No. (%) | No. (%) | |
1 | 2 (0.5) | 0 (0) | 0 (0) | 1 (0.3) | 1 (0.2) | 2 (0.6) |
2 | 12 (2.8) | 15 (3.8) | 3 (0.8) | 7 (1.7) | 6 (1.4) | 6 (1.7) |
3 | 81 (18.7) | 63 (15.8) | 37 (9.2) | 39 (9.7) | 36 (8.5) | 38 (10.5) |
4 | 117 (27.0) | 117 (29.4) | 97 (24.1) | 120 (29.7) | 108 (25.4) | 104 (28.8) |
5 | 124 (28.6) | 122 (30.7) | 134 (33.3) | 142 (35.2) | 155 (36.5) | 100 (27.7) |
6 | 67 (15.5) | 64 (16.1) | 83 (20.7) | 61 (15.1) | 83 (19.5) | 73 (20.2) |
7 | 24 (5.5) | 12 (3.0) | 35 (8.7) | 30 (7.4) | 29 (6.8) | 33 (9.1) |
8 | 5 (1.2) | 3 (0.8) | 13 (3.2) | 4 (1.0) | 7 (1.7) | 4 (1.1) |
9 | 1 (0.2) | 2 (0.5) | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
Total | 433 (100) | 396 (100) | 402 (100) | 404 (100) | 424 (100) | 360 (100) |
DDS ≤4 | 212 (49 %) | 195 (49 %) | 317 (79 %) | 167 (41 %) | 151 (36 %) | 150 (42 %) |