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Table 2 Regression analysis of AM and basic characteristics of girls (n = 724)

From: Age at menarche, eating disorders, and their relationships with some parameters in female adolescents in Iran

Variables p value β (95% CI)
Weight (kg) < 0.01 − 0.01 (− 0.019, − 0.004)
Height (cm) 0.2 0.01 (− 0.005, 0.025)
WC (cm) 0.1 − 0.009 (− 0.019, 0.002)
BMI (kg/m2) < 0.001 − 0.03 (− 0.06, − 0.018)
Mother's AM (year) < 0.001 0.3 (− 0.0242, 0.381)
SES < 0.05 0.1 (0.003, 0.322)
  1. AM age at menarche, WC waist circumference, BMI body mass index; SES: socioeconomic status, CI confidence interval
  2. Linear regression was performed; p < 0.05