Table 1

Descriptive characteristics of the study sample


Males (n = 260)
Females (n = 242)

Age (years)
15.4 ± 1.4
15.4 ± 1.4
Tanner II,III,IV,V (%)
5.8, 15.1, 41.8, 37.3
1.6, 8.1, 54.3, 36.0
Weight (kg)
64.6 ± 13.4
56.8 ± 10.5
Height (cm)
170.7 ± 8.2
161.5 ± 6.4
Body mass index (kg/m2)
22.1 ± 3.9
21.7 ± 3.5
Cardiorespiratory fitness (stage)
7.0 ± 2.6
4.1 ± 1.8
Sum of 6 skinfolds
75.8 ± 38.1
98.8 ± 31.9
Percentage body fat
20.2 ± 10.4
25.6 ± 6.6
Triglycerides (mg/dl)
71.3 ± 31.6
64.7 ± 26.4
TC (mg/dl)
156.7 ± 26.4
169.9 ± 26.4
HDLc (mg/dl)
51.0 ± 9.7
59.2 ± 11.6
LDLc (mg/dl)
91.4 ± 23.9
97.4 ± 23.2
ApoA (mg/dl)
116.9 ± 17.1
127.7 ± 19.2
ApoB (mg/dl)
66.9 ± 14.3
69.9 ± 13.8
Lp(a) (mg/dl)*
14.1 ± 4.2
5.3 ± 3.9
ApoA/ApoB (mg/dl)
1.8 ± 0.5
1.9 ± 0.5
TC-HDLc (mg/dl)
105.7 ± 25.9
110.6 ± 25.8
Birth weight (g)
3443.0 ± 539.0
3283 ± 564
Birth weight score
409.0 ± 516.0
353 ± 559
Socieconomic status I,II,III,IV,V (%)
5.9, 25.3, 41.6, 23.6, 3.6
7.2, 25.4, 37.1, 23.3, 6.9

Values are means ± SD, otherwise indicated.

TC indicates total cholesterol; HDLc, high density liprotein cholesterol; LDLc, low density lipoprotein cholesterol; TG, triglycerides; Apo, apolipoprotein; Lp(a), lipoprotein a.

*Geometric mean ± SD.

Ruiz et al. BMC Medical Genetics 2008 9:98   doi:10.1186/1471-2350-9-98