Table 5.

Relationship Between Pubertal Timing and Tempo and Girls’ Physical Outcomes

Variable	Breast development						Pubic hair development
	Model 1			Model 2			Model 1			Model 2
	B	SE B	β	B	SE B	β	B	SE B	β	B	SE B	β
BMI z score, age 12.5 years (breast, N = 301; hair, N= 299)
Timing	−0.55	0.05	−.54**	−0.52	0.05	−.52**	−0.47	0.05	−.46**	−0.43	0.06	−.42**
Tempo	−0.28	0.28	−.05	−0.26	0.28	−.05	0.74	0.35	.11*	0.75	0.35	.11*
Timing × Tempo				0.34	0.30	.06				0.69	0.36	.11†
R2		0.29			0.30			0.22			0.23
F for change in R2		61.93**			1.21			42.14**			3.65†
Weight-for-age percentile, age 12.5 years (breast, N = 302; hair, N = 300)
Timing	−18.58	1.27	−.65**	−18.34	1.38	−.64**	−17.41	1.34	−.59**	−16.55	1.45	−.56**
Tempo	0.10	7.22	.00	0.31	7.24	.00	31.98	8.84	.17**	32.20	8.82	.17**
Timing × Tempo				3.54	7.83	.02				13.66	9.15	.07
R2		0.42			0.42			0.38			0.38
F for change in R2		107.10**			0.20			90.90**			2.22
Height-for-age percentile, age 12.5 years (breast, N = 302; hair, N = 300)
Timing	−15.00	1.44	−.52**	−15.36	1.56	−.53**	−15.62	1.41	−.53**	−16.20	1.53	−.55**
Tempo	12.65	8.13	.08	12.31	8.16	.07	41.83	9.26	.22**	41.69	9.26	.21**
Timing × Tempo				−5.16	8.85	−.03				−9.16	9.65	−.05
R2		0.27			0.27			0.33			0.33
F for change in R2		55.33**			0.34			71.52**			0.90

Note. BMI = body mass index.

^†p < .10.

^*p < .05.

^**p < .01.