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Table 4 Relation between weight categories and age, diet quality index, smoking habit, physical activity and current drug use based on BMI classification

From: Differences between men and women in self-reported body mass index and its relation to drug use

  Underweight U M (SD) Normal N M (SD) Overweight Ov M (SD) Obesity Ob M (SD) Total M (SD) df F p Post hoc
U v N U v Ov U v Ob N v Ov N v Ob Ov v Ob
Age (years) 19.30 (1.61) 19.71 (1.69) 20.15 (1.82) 20.29 (1.77) 19.82 (1.73) 3, 1812 8.727 0.001***     ***   
Physical activity (frequency) 2.85 (1.09) 3.19 (1.07) 3.07 (1.02) 2.67 (0.95) 3.14 (1.06) 3, 1792 5.466 0.001**      **  
Diet Quality Index (frequency) 12.45 (2.03) 12.28 (2.11) 11.97 (2.15) 11.64 (1.96) 12.20 (2.12) 3, 1794 3.585 0.013*       
Overall drug use 1.54 (0.46) 1.60 (0.35) 1.65 (0.37) 1.73 (0.53) 1.61 (0.36) 3, 1779 4.193 0.006**       
High-frequency drug use 2.34 (1.09) 2.58 (0.86) 2.67 (0.89) 2.69 (0.94) 2.60 (0.88) 3, 1794 2.136 0.094       
Medium-frequency drug use 1.22 (0.62) 1.18 (0.40) 1.23 (0.48) 1.38 (0.70) 1.19 (0.43) 3, 1801 4.662 0.003**      **  
Low-frequency drug use 1.05 (0.18) 1.04 (0.16) 1.05 (0.18) 1.12 (0.40) 1.05 (0.18) 3, 1788 2.895 0.034*      *  
  1. Men.
  2. Note: Significance levels for each ANOVA and Scheffé’s post-hoc comparison are depicted by: *p < 0.05, **p < 0.01, ***p < 0.005.