Age at Menarche in Tuzla Canton
A study of the age at menarche was conducted in Tuzla Canton on a sample which included 7047 girls between the ages of 9 and 17 years. Data were collected using thc status quo method. Median age at menarche estimated by Probit analysis was 13.07±0,05 years with a standard deviation of 1,05 years. Girls in rural places had a delay in their menstruation, with a mean age at menarche of 13,19 years, compared to those who lived in urban places, with a mean age at menarche of 12,84 years (P < 0.0001). As no previous Information is available about the age at menarche in Tuzla Canton, the present results will afford a basis for future studies which should aim at analyzing the secular trend in menarche while attempting to define the differences between the various socio-economic levels.