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Table 3 Estimated geometric mean daily consumption and adjusted mean difference for 15,913 ED consumers

From: Consumption of energy drinks among adolescents in Norway: a cross-sectional study

Variable   n Geometric mean daily ED intake (ml/day) Mean difference (%) 95% CI
School level
 Lower secondary schoola 9732 26.9 reference group  
 Upper secondary schoolb 6181 29.2 8.7% [4.7–12.8]
Gender
 Female 6180 18.5 reference group  
 Male 9220 36.3 95.2% [88.2–102.5]
Residencyc
 Urban 7064 26.0 reference group  
 Rural 8849 29.2 13.2% [9.1–17.3]
Socioeconomic status
 Group 5 Highest 2730 24.9 reference group  
 Group 4 3213 25.8 −0.1% [−5.8–5.9]
 Group 3 3182 27.3 7.2% [1.1–13.7]
 Group 2 3371 29.1 13.6% [7.1–20.4]
 Group 1 Lowest 3413 31.6 19.0% [12.3–26.2]
Frequency of physical activityd
 Often 13,124 26.5 reference group  
 Seldom 2278 32.0 13.1% [7.3–19.2]
 Never 311 53.5 65.8% [45.4–89.0]
Leisure screen time
 Less than two hours 2549 20.3 reference group  
 Two-three hours 3390 22.9 16.7% [10.0–23.9]
 Three-four hours 4058 25.5 29.7% [22.5–37.3]
 Four-six hours 3212 31.0 54.0% [45.1–63.5]
 More than six hours 2561 46.8 116.8% [103.5–131.0]
  1. CI confidence interval
  2. aLower secondary school includes grades 8–10 and ages 12–15 years b Upper secondary school includes grades 11–13 and ages 15–19 years c Urban residency: municipalities with ≥ 20,000 residents, rural residency: municipalities with < 20,000 residents. d Often: once a week or more, seldom: once to twice a month or less