Table 2.

Oral health-related quality of life (OHRQoL), dental caries (DMFT index) and levels of propensity of adolescents by the family development index (FDI) groups considered, Manguinhos, Rio de Janeiro, Brazil, 2010

	FDI not severe	FDI severe	FDI very severe	P value
OHRQoL (generic child-OIDP)
Mean (SD)	4.28 (4.75)	8.06 (9.23)	11.76 (12.86)	0.001*
≥1	66.9	74.3	79.0	≤0.001**
OHRQoL (specific child-OIDP)
Mean (SD)	3.50 (3.21)	3.11 (2.80)	3.15 (2.81)	0.001*
≥1	50.0	65.1	66.7	≤0.001**
Dental caries (DMFT)
Mean (SD)	1.00 (1.70)	1.39 (1.69)	1.78 (2.03)	≤0.001*
≥1	33.1	54.6	66.7	≤0.001**
% ‘D’ of DMFT	41.7	59.8	82.6	≤0.001**
% Severe caries	0.6	5.0	13.8	≤0.001**
Propensity				≤0.001**
Low	33.1	37.9	53.1
Medium	25.2	28.8	24.7
High	41.7	33.3	22.2

* P value refers to Kruskal–Wallis

** Chi-square test