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Table 1 Morbidity of physical systems among first-graders (N = 53,053; Boy = 27,359, Girl = 25,694)

From: Morbidity at elementary school entry differs by sex and level of residence urbanization: a comparative cross-sectional study

Physical system Sum Boy Girl Significance
Eyes 47.8 46.6 49.2***
Teeth 99.8 100.5 99.0***
Ears, Nose, Throat 3.1 3.5 2.7***
Heart, Lung, Abdomen 2.0 2.1 2.2*
Bones, Muscle 0.8 0.9 0.6***
Reproductive 2.2 3.4 0.8@
Skin 0.6 0.6 0.6***
Total 159.9 161.5 158.2***
  1. Unit: per 100 people
  2. Statistically significant differences between boys and girls: * indicates p < .05; *** indicates p < .001.
  3. @indicates not comparable between boys and girls.