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Table 1 Sample characteristics by sex (mean values or percentages and 95% CI)

From: Associations between dietary patterns and biomarkers of nutrient status and cardiovascular risk factors among adolescents in Germany: results of the German Health Interview and Examination Survey for Children and Adolescents in Germany (KiGGS)

  Boys Girls
  N = 2646 N = 2551
  Mean 95% CI Mean 95% CI
Age (years, mean) 15.1 (15.0–15.1) 15.1 (15.0–15.1)
Regular alcohol consumption (%)a 29.0 (26.7–31.3) 16.5 (14.7–18.4)
Current smoking (%) 22.3 (20.4–24.1) 22.8 (21.1–24.5)
Physical activity (hours per week, mean) 8.2 (7.8–8.5) 5.3 (5.0–5.5)
Vitamin supplement use (%)b 6.6 (5.6–7.7) 4.8 (3.8–5.7)
Mineral supplement use (%)b 3.0 (2.3–3.6) 1.5 (1.0–2.0)
BMI (kg/m2) 21.2 (21.0–21.4) 21.5 (21.3–21.7)
  1. adrinking at least one glass of beer, wine, or liquor per week
  2. bduring the last 7 days