Table 3. Multiple Regression Analysis of the Correlation Between Menarcheal Age and Various Variables^a.

Variables	Changes of Mean	95% CI	P. Value
Maternal Menarcheal age	0.66	0.58 to 0.73	< 0.001
BMI	-0.04	-0.06 to 0.01	0.002
Maternal Educational Level	0.25	0.03 to 0.47	0.027

^a Abbreviation: BMI, body mass index; CI, confidence interval.