Table 1.

Frequency distribution of the sample (n = 1612) according to variables; Belo Horizonte, Brazil, 2009

Variables	Frequency n (%)
Gender
Male	672 (41.7)
Female	940 (58.3)
Age (years)
11-12	856 (53.1)
13-14	756 (46.9)
Dental caries
Free of teeth with untreated lesion	1161 (72.0)
One or more teeth with untreated lesion	451 (28.0)
Malocclusion
Absent	1108 (68.7)
Present	504 (31.3)
Socioeconomic status
Low social vulnerability	931 (57.8)
High social vulnerability	681 (42.2)
TDI
Absence of fractures	1337 (82.9)
Untreated TDI	211 (13.1)
Treated TDI	56 (3.5)
Both untreated and treated TDI	8 (0.5)