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Table 1 Sample distribution of sociodemographic and dental status from birth to 6 yr of age according to OIDP levels (n, %) in adolescents (n = 339) age 12 yr.

From: Social and dental status along the life course and oral health impacts in adolescents: a population-based birth cohort

Variables Sample distribution OIDP = 0 OIDP = 1 OIDP ≥ 2
  n (%) n (%)
Sex     
Male 182(53.7) 76(41.8) 54(29.7) 52(28.5)
Female 157(46.3) 66(42.0) 48(30.6) 43(27.4)
Skin color     
White 270(79.7) 113(41.9) 83(30.7) 74(27.4)
Blacks 69(20.3) 29(42.1) 19(27.5) 21(30.4)
Family income at child birth*     
> 6 45(13.3) 21(46.6) 17(37.9) 7(15.5)
1.1-6 232(68.6) 94(40.5) 66(28.5) 72(31.0)
≤ 1 61(18.1) 27(44.3) 18(29.5) 16(26.2)
Maternal schooling at child birth     
≥ 9 yr 78(23.1) 32(41.0) 27(34.6) 19(24.4)
5 - 8 yr 164(48.5) 76(46.3) 42(25.6) 46(28.1)
≤ 4 96(28.4) 34(35.4) 32(33.3) 30(31.3)
Mother employment status at child aged 6 month     
No 230(68.1) 110(47.8) 67(29.1) 53(23.1)
Yes 108(31.9) 32(29.6) 34(31.5) 42(38.9)
Untreated dental caries at age 6     
0 124(36.7) 54(43.5) 40(32.3) 30(24.2)
1-3 92(27.2) 38(41.3) 25(27.2) 29(31.5)
4-19 122(36.1) 50(41.0) 36(29.5) 36(29.5)
Open bite at age 6 yr     
No 173(52.2) 73(42.2) 49(28.3) 51(29.5)
Yes 165(48.8) 69(41.8) 52(31.5) 44(26.7)
Cross bite at age 6 yr     
No 277(81.9) 120(43.3) 85(30.7) 72(26.0)
Yes 61(18.1) 22(36.1) 16(26.2) 23(37.7)
  1. Pelotas, Brazil, 2005.
  2. *BMW = Brazilian Minimum Wage (around US$ 190,00 in June 2007)