Table 4.

Fixed Effects Parameter Estimates for GB Stage Model by Sex

	Parameter	Estimate	SE	DF	t-value	p-value
Males
Tempo
	Intercept	1.039	0.152	155	6.82	<0.0001
	Diagnosis	0.018	0.165	155	0.11	0.915
	BMI	0.009	0.003	155	3.64	0.0004
Timing
	Intercept	13.337	0.202	155	66.03	<0.0001
	Diagnosis	−0.286	0.182	155	−1.57	0.119
	BMI	−0.006	0.002	155	−2.25	0.026
Females
Tempo
	Intercept	0.856	0.217	64	3.94	0.0002
	Diagnosis	0.049	0.195	64	0.25	0.804
	BMI	0.003	0.003	64	1.07	0.287
Timing
	Intercept	14.035	0.360	64	38.94	<0.0001
	Diagnosis	−0.693	0.290	64	−2.39	0.020
	BMI	−0.016	0.005	64	−3.32	0.002

Note: Tempo parameters control the rate of progression through puberty, with positive values being faster. Timing parameters control the shift of the curve along the X-axis in years. SE, standard error; DF, degrees of freedom; BMI, body mass index