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Table 1 3-Month height velocity during the first year of treatment and regression coefficients (2090 Patients, 5033 HVs)

From: Is there “seasonal” variation in height velocity in children treated with growth hormone? Data from the National Cooperative Growth Study

 

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

  1. *Using log base 10 of maximum stimulated GH response.
  2. GH, growth hormone; HV, height velocity; SD, standard deviation; SDS, standard deviation score.