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Table 1 Baseline characteristics of the sample (n = 425)

From: Excessive TV viewing and cardiovascular disease risk factors in adolescents. The AVENA cross-sectional study

  Adolescent boys (n = 214) Adolescent girls (n = 211) p
Age (yrs) 14.9 ± 1.2 14.8 ± 1.4 0.370
Weight (kg) 64.4 ± 13.3 56.3 ± 10.6 <0.001
Height (m) 1.7 ± 0.1 1.6 ± 0.1 <0.001
Body mass index (kg/m2) 22.1 ± 3.9 21.6 ± 3.5 0.177
Non-overweight/Overweight 154/60 162/39 0.020
Waist circumference (cm) 77.1 ± 9.4 71.1 ± 8.4 <0.001
Sexual maturation (I/II/III/IV/V) 1/10/28/86/89 0/5/18/110/78 <0.001
Triglycerides (mg/dl)§ 71.1 ± 31.8 65.1 ± 27.0 0.037
Total cholesterol (mg/dl)§ 155.8 ± 26.3 170.1 ± 25.4 <0.001
HDL-cholesterol (mg/dl)§ 51.4 ± 10.0 59.4 ± 11.8 <0.001
LDL-cholesterol (mg/dl)§ 90.2 ± 23.5 97.8 ± 22.7 0.001
Glucose (mg/dl)§ 95.4 ± 9.7 91.5 ± 8.4 <0.001
Apoliprotein-A1 (mg/dl)§ 115.5 ± 15.5 125.5 ± 17.5 <0.001
Apoliprotein-B100 (mg/dl)§ 65.9 ± 14.8 69.3 ± 13.4 0.013
Lipoprotein(a) (mg/dl)§ 30.8 ± 36.8 31.6 ± 38.9 0.683
Low TV viewing/High TV viewing 89/125 111/100 0.023
  1. Values are mean ± SD. §Values were natural log-transformed, but not transformed values are presented in the table. High TV viewing: >3 hrs/day. Statistical analyses were analysis of variance for continuous variables and the Chi-square test for categorical variables.