بررسي عوامل موثر بر سن منارك دختران

Menarche: Mean Age and Related Factors

This study done to determine the mean age and effect of other factors in menarche. The results of this study showed that the menarche mean age of girls was 13.4 years (SD=1.3) and in their motherʹs it was 14.04 years (SD=1.9); girls experienced menarche about one year earlier (P<0.05). In different ethnic groups the mean age of menarche was different and as follows: Fars 11.9(SD=3.2), Turk 12.7 (SD=1.1) and Lur 13.4(SD=1.6). Also a positive statistical correlation existed between the number of the motherʹs children and age of menarche (P<0.05).