Objective To study the psychosocial factors of urban girls with early menarche in Harbin and to provide theoretical basis for carrying outhealth education.
Methods A 1:1 matched cas-econtrol study on 137 girls with early menarche was conducted.Conditional logistic regressions of univariate and multiveriate were applied to analyze influencial factors of early menar che.
Results Simple log istic regression revealed that early menarche were significantly related to 6 factors, and father's understanding and mother's rejection entered the regression model.
Conclusion Early menarche is related to psy chosocial factors.