Table 2.

Prevalence of twice-a-day toothbrushing for boys and girls by family affluence, family structure, school type and rurality, % (s.e.)

Variable	Boys	Girls
Sample Size (N)	1274	1418
Family Affluence Scale
Low FAS	62.2 (2.7)	77.8 (1.8)
Medium FAS	62.7 (2.3)	85.5 (1.7)
High FAS	70.1 (2.6)	87.4 (1.6)
Family structure
Both parent	67.7 (1.8)	85.7 (1.2)
Single parent	60.1 (3.3)	77.0 (2.5)
Step family	56.9 (4.5)	81.4 (3.1)
Other	50.0 (11.8)	76.0 (8.8)
School type
Independent school	75.5 (7.7)	90.6 (4.1)
State school	64.4 (1.7)	83.1 (1.1)
Rurality
Urban	65.6 (2.3)	84.4 (1.4)
Remote towns	60.8 (4.3)	81.1 (3.9)
Accessible rural	65.2 (3.3)	77.3 (3.2)
Remote rural	64.5 (3.5)	86.0 (2.1)
Deprivation (SIMD quintiles)
SIMD 1 (most deprived)	56.1 (4.7)	75.0 (3.7)
SIMD 2	63.4 (4.1)	80.8 (2.5)
SIMD 3	60.8 (3.0)	79.4 (2.0)
SIMD 4	67.7 (2.4)	87.4 (1.6)
SIMD 5 (least deprived)	70.9 (3.5)	90.1 (2.2)

Clustering by school is accounted for in the calculation of SEs