Table 1 Baseline sample descriptive statistics
From: Comparative effectiveness of school-based caries prevention: a prospective cohort study
All (n = 8207) | Exposed (n = 6584) | Unexposed (n = 1623) | ||||
|---|---|---|---|---|---|---|
mean | SD | mean | SD | mean | SD | |
Age at exam | 7.33 | 1.76 | 7.32 | 1.71 | 7.39 | 1.93 |
TOCE | 2.06 | 2.72 | 2.19 | 2.83 | 1.55 | 2.13 |
N | % | N | % | N | % | |
Males | 3840 | 50.87 | 3338 | 51.4 | 502 | 47.58 |
Previous dental care | 4942 | 60.22 | 3986 | 60.54 | 956 | 58.9 |
Decay at baseline (any) | 2683 | 32.69 | 2211 | 33.58 | 472 | 29.08 |
Decay at baseline (permanent teeth) | 755 | 9.20 | 614 | 9.33 | 141 | 8.69 |