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. Author manuscript; available in PMC: 2013 Sep 1.
Published in final edited form as: Obesity (Silver Spring). 2013 Mar;21(3):E271–E279. doi: 10.1002/oby.20080

Table 1.

Descriptive statistics and prevalence of risk factors stratified by grade and gender

6th Grade 8th Grade

Male Female Male Female

Descriptive Statistics Mean Std Dev Mean Std Dev Mean Std Dev Mean Std Dev
BMI Z-score# 0.99 0.93 0.86 0.90 0.89 0.91 0.87 0.84
WC Z-score 0.00 1.00 0.00 1.00 0.00 1.00 0.00 1.00
WC (cm)$ 61.42 28.73 64.60 25.45 59.24 32.89 66.23 28.70
Triglycerides (mg/dl)* 87.71 51.95 90.15 53.28 85.15 54.12 80.89 38.33
HDL-C (mg/dl)* 52.92 12.34 52.19 12.06 49.39 11.83 53.31 12.49
LDL-C (mg/dl)$ 88.76 23.72 85.73 22.68 79.07 22.83 81.59 22.22
Systolic Blood Pressure (mm.Hg)$ 108.00 10.29 106.77 9.98 114.36 10.47 108.03 9.57
Diastolic Blood Pressure (mm.Hg)* 63.74 8.82 63.82 8.62 64.03 8.05 65.22 7.82
Glucose (mg/dl)$ 94.43 6.60 92.69 6.63 95.88 7.84 92.13 8.22
Insulin (μU/dL)# 12.22 12.23 14.18 10.76 16.72 15.93 17.58 12.73
HBA1C(%)* 5.15 0.31 5.13 0.29 5.17 0.35 5.11 0.32
6th Grade 8th Grade

% At Risk (n) % At Risk (n)

Prevalence (% At Risk, n) Male Female Male Female
Triglycerides >=150 mg/dl* 9.66 (204) 9.55 (225) 8.62 (183) 5.38 (128)
HDL-C <40 mg/dl* 12.84 (271) 13.41 (316) 19.59 (416) 12.37 (294)
LDL-C ≥ 130 mg/dL 5.16 (109) 3.65 (86) 2.45 (52) 2.61 (62)
Systolic Blood Pressure >=130 mm.Hg* 2.30 (50) 1.86 (45) 6.81 (148) 1.57 (38)
Diastolic Blood Pressure>=85 mm.Hg 1.89 (41) 1.86 (45) 1.38 (30) 1.20 (29)
Glucose >= 100 mg/dl$ 19.28 (407) 13.11 (309) 29.96 (636) 14.89 354)
#

Gender difference at 6th Grade (p<.01)

*

Gender difference at 8th Grade (p<0.01)

$

Gender difference at 6th Grade and 8th Grade (p<0.01)