Table 4.

Regression analyses of femoral neck BMD, age at menarche, BMI, and years of age in the total population and G1.

Group (n)	Region Measured	Variable	β Crude	p	β Adjusted	p
G1 (9)	FN	Age at menarche (years)	−0.0755 a	0.0016 *
Total (39)	FN	Age at menarche (years)	−0.0307	0.0568	−0.0346 b	0.0145 *
		BMI (kg/m2)	0.0050	0.2439	0.0098 c	0.0125 *
		Years of age	−0.0091	0.0218 *	−0.0126 d	0.0011 *

^a Simple linear regression; ^b adjusted by BMI and years of age; ^c adjusted by age at menarche and years of age; ^d adjusted by age at menarche and BMI; G1: nulliparous women; * significant association at p ≤ 0.05. FN: femoral neck; BMI: body mass index.