Table 2.

3-Month height velocity after the first year of treatment and regression coefficients (1292 Patients, 6356 HVs)

	Mean (SD)	Regression coefficient	Pvalue
3-month HV after 1st year (cm/yr)	7.2 (2.9)
Daylight hours	11.9 (1.7)	0.121	<0.0001
Age (yr) at start of 3-month interval	9.2 (2.1)	−0.076	<0.0001
Height SDS at start of 3-month interval	−1.4 (1.0)	0.16	0.0002
BMI SDS at start of 3-month interval	−0.1 (1.0)	0.34	<0.0001
Mother’s height SDS	−0.6 (1.2)	0.03	0.3434
Father’s height SDS	−0.4 (1.2)	0.02	0.6048
Maximum stimulated GH (ng/mL)	6.1 (2.4)	−1.4*	<0.0001
GH dose (mg/kg/wk) at start of 3-month interval	0.32 (0.07)	1.6	0.0053
Time from GH start to midinterval for HV (yr)	2.8 (1.5)	−0.45	<0.0001

*Using log base 10 of maximum stimulated GH response.

GH, growth hormone; HV, height velocity; SD, standard deviation; SDS, standard deviation score.