Table 1.
Characteristics of 37,815 adolescents enrolled in the Study of Cardiovascular Risk Factors in Adolescents (ERICA, 2013–2014).
| Variables | n | |||
| Continuous | Median | 1°Q | 3°Q | |
| Age (years) | 37,815 | 15 | 13 | 16 |
| TG/HDL δ | 37,706 | 0.65 | 0.47 | 0.91 |
| TyG Φ | 37,559 | 8.0 | 7.73 | 8.28 |
| Insulin (mU/L) | 37,760 | 8.3 | 5.8 | 11.7 |
| Categorical | (%) | 95% CI | ||
| Female | 22,682 | 50.2 | - | - |
| Smoking (≥1 cigarette smoked in the last 30 days) | 1406 | 4.2 | 3.8 | 4.7 |
| Alcohol consumption (≥1 drink in the last 30 days) | 7685 | 21.6 | 20.3 | 23.0 |
| Sedentary behavior γ | 14,133 | 40.5 | 38.9 | 42.1 |
| Physical inactivity (<420 min per week) | 24,713 | 62.7 | 61.7 | 63.8 |
| Public Schools | 27,990 | 77.8 | 72.4 | 82.3 |
| Tanner Stage | ||||
| Stage 1 | 172 | 0.5 | 0.4 | 0.6 |
| Stage 2 | 1917 | 5.6 | 4.9 | 6.2 |
| Stage 3 | 6651 | 16.9 | 16.0 | 17.9 |
| Stage 4 | 14,889 | 40.0 | 38.5 | 41.5 |
| Stage 5 | 14,162 | 37.0 | 35.7 | 38.3 |
| Nutritional status | ||||
| Normal a | 27,073 | 71.0 | 69.4 | 72.5 |
| Overweight b | 6635 | 17.5 | 44.0 | 49.2 |
| Obesity c | 3097 | 9.2 | 8.5 | 10.0 |
| Waist circumference (cm) | ||||
| Normal | 33,373 | 87.4 | 86.3 | 88.4 |
| Elevated d | 4386 | 12.6 | 11.6 | 13.7 |
δ Triglyceride/high-density lipoprotein; Φ triglyceride/glucose index; γ ≥3 h a day spent with television, video games, or computer in an ordinary weekday; a Z-score ≥ −2 and Z-score ≤ +1; b Z-score > +1 and Z-score ≤ +2; c Z-score > +2; d ≥90th percentile for those aged 10 to <16 years old; ≥90 cm for males and ≥80 cm for females for those aged 16 years or older.