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Table 1 Frequency distribution of the sample (n = 1612) according to variables; Belo Horizonte, Brazil, 2009

From: Association between treated/untreated traumatic dental injuries and impact on quality of life of Brazilian schoolchildren

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)