Table 1.

3-Month height velocity during the first year of treatment and regression coefficients (2090 Patients, 5033 HVs)

	Mean (SD)	Regression coefficent	Pvalue
3-month HV during 1st year (cm/yr)	9.7 (3.7)
Daylight hours	11.9 (1.7)	0.146	<0.0001
Age (yr) at start of 3-month interval	9.0 (2.8)	−0.22	<0.0001
Height SDS at start of 3-month interval	−2.2 (0.8)	0.28	<0.0001
BMI SDS at start of 3-month interval	−0.4 (1.1)	0.52	<0.0001
Mother’s height SDS	−0.6 (1.1)	0.19	<0.0001
Father’s height SDS	−0.4 (1.1)	0.10	0.0340
Maximum stimulated GH (ng/mL)	6.1 (2.4)	−2.1*	<0.0001
GH Dose (mg/kg/wk) at start of 3-month interval	0.30 (0.05)	7.9	<0.0001
Time from GH start to midinterval for HV (yr)	0.4 (0.3)	−3.57	<0.0001

*Using log base 10 of maximum stimulated GH response.

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