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Table 1 Number of injuries, according to age groups

From: Large overjet as a risk factor of traumatic dental injuries: a prospective longitudinal study

  Age Total
7.00 8.00 9.00 10.0 11.0 12.0 13.0 14.0  
TRAUMA
 No trauma during follow-up period
  Count 32 160 212 243 249 223 182 36 1337
  Expected count 31 164 214 241 256 221 175 35 1337
 Trauma during follow-up period
  Count 1 13 14 12 22 10 3 1 76
  Expected count 1.8 9.3 12.2 13.7 14.6 12.5 10.0 2.0 76.0
Total
 Count 33 173 226 255 271 233 185 37 1413
 Expected count 33 173 226 255 271 233 185 37 1413
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