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

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

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***

Unit: per 100 people
Statistically significant differences between boys and girls: * indicates p < .05; *** indicates p < .001.
^@indicates not comparable between boys and girls.

ISSN: 1471-2458