Table 2 Characteristics of the two cohorts
From: Toothbrushing: to the best of one’s abilities is possibly not good enough
1995 cohort | 1992 cohort | p (exact test) | |
|---|---|---|---|
sex | male/female | male/female | 0.491 |
42/54 | 43/58 | ||
at least one parent has university entrance diploma (UED) | no UED/UED | no UED/UED | 0.085 |
36/60 | 51/50 | ||
brushing hand in video | right/left/both | right/left/both | 0.886 |
85/7/4 | 85/10/6 |