Table 2: Results of Student t test of the age of the children with early childhood caries and of the gender of the children with early childhood caries.

  Variable   N   Minimum   Maximum σ   p-value
  Age in years   332   1   5   2.83 ± 0.91   0.000*
Gender N σ p-value
Males 298 1.40 ± 0.491 0.812
Females 259 1.41 ± 0.493

*Statistically significant for P<0.05