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. Author manuscript; available in PMC: 2013 Apr 9.
Published in final edited form as: J Pediatr Endocrinol Metab. 2009 Jan;22(1):65–68. doi: 10.1515/jpem.2009.22.1.65

TABLE 1.

Changes during Period 1 versus Period 2 (two sample statistics) and changes during atorvastatin period alone (one sample statistics)

Mean ± SD at study entry Primary analysis Two sample statistics Secondary analysis One sample statistics

(n = 49 baseline) Point estimate of atorvastatin effect (SE) (n = 44) Two sample p value Point estimate of atorvastatin effect ± SD (n = 45) One sample p value
AI75 (%) 4.37 ± 13 -2.18 (2.14) 0.32 -2.0 ± 7.0 0.06
RH-PAT 1.77 ± 0.5 -0.11 (0.14) 0.43 -0.03 ± 0.5 0.75
HbA1c (%) 8.3 ± 1.2 0.30 (0.27) 0.27 0.18 ± 1.0 0.23
Total cholesterol (mmol/l) 4.27 ± 1.0 -1.06 (0.17) <0.001 -0.77 ± 0.63 <0.001
LDL-cholesterol (mmol/l) 2.25 ± 0.7 -1.14 (0.15) <0.001 -0.74 ± 0.52 <0.001
LDL-cholesterol change (%) -31 ± 18.7 <0.001
HDL-cholesterol (mmol/l) 1.6 ± 0.35 0.076 (0.057) 0.19 0.0026 ± 0.2 0.92
Triglycerides (mmol/l) 0.94 ± 0.59 0.018 (0.1) 0.86 0.07 ± 0.4 0.27
Glucose (mmol/l) 10.82 ± 4.7 1.95 (1.65)# 0.24 1.22 ± 6.2 0.20
AST (U/l) 20 ± 8.4 2.4 (1.9) 0.21 1.1 ± 4.6 0.12
ALT (U/l) 15 ± 5.5 4.3 (1.3) 0.002 2.8 ± 5.7 0.002
Urine microalbumin/creatinine (mg/g) 4 ± 5.9 19.3 (27.2)* 0.48 25.1 ± 173* 0.34
BMI 22.6 ± 4.3 -0.29 (0.21) 0.15 -0.1 ± 0.8 0.39
BMI percentile 67.9 ± 25.8 -2.52 (2.55) 0.33 -2.0 ± 9.9 0.17
Average systolic BP (mm Hg) 105 ± 9.9 3.50 (2.50) 0.17 3.1 ± 10.0 0.04
Average diastolic BP (mm Hg) 67 ± 9.7 -1.41 (2.48) 0.57 -0.8 ± 10.0 0.62
Heart rate (beats/min) 75 ± 15.2 1.23 (2.72) 0.65

Mean value at study entry, point estimate of atorvastatin effect, and p value for major study endpoints using the primary analysis (two sample statistics of the change during period 1 versus change during period 2). Also shown are point estimates of atorvastatin effect ± SD and p value using one sample statistics (secondary analysis). Negative point estimates suggest lower values following the atorvastatin treatment period.

*

Outlier prone variable

#

n = 42

n = 43

n = 44.

To convert cholesterol values from mmol/l to mg/dl multiply by 38.67. To convert triglycerides from mmol/l to mg/dl multiply by 88.6.

AI75 = augmentation index corrected to heart rate of 75; RH-PAT = reactive hyperemia peripheral artery tonometry; SD = standard deviation; SE = standard error.