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Table 2 Multivariable logistic regression for factors associated with remaining within the normal1 BMI category from freshman year until responding to the current survey (n = 995)

From: Lifestyle and psychosocial factors associated with maintenance of normal body mass index in college students: a cross sectional study

  Sophomore; (n = 323) Juniors (n = 284) Seniors (n = 388)
OR2 (95% CI3) OR (95% CI) OR (95% CI)
Demographics
 Females (Ref. Males)4 0.64 (0.24, 1.73) 1.77 (0.70, 4.49) 1.07 (0.56, 2.05)
 Race (Ref. White)
  Black 0.89 (0.16, 4.92) 5 5
  Asians 1.61 (0.42, 6.21) 1.35 (0.14, 13.44) 3.31 (0.37, 29.97)
  Other 0.67 (0.18, 2.54) 0.66 (0.18, 2.50) 0.67 (0.25, 1.80)
 Born outside US (Ref. US born) 1.67 (0.18, 15.18) 1.80 (0.30, 10.73) 2.70 (0.30, 24.54)
Exercise; 1 (never)— 10 (daily) 1.05 (0.90, 1.24) 0.97 (0.82, 1.15) 1.07 (0.96, 1.21)
Dietary habits
 Consumed ≥ 3 meals/day (Ref. < 3 meals/day) 0.77 (0.34, 1.76) 0.58 (0.24, 1.40) 1.70 (0.95, 3.06)
 Never consumed fast food (Ref. at least once/week) 3.78 (1.61, 8.88)** 7.82 (2.14, 28.65)** 0.91 (0.48, 1.72)
 Never consumed beverages (Ref. at least once/week) 1.55 (0.55, 4.33) 0.55 (0.21, 1.41) 1.52 (0.77, 3.00)
 Never consumed alcohol (Ref. at least once/week) 0.54 (0.24, 1.20) 0.64 (0.25, 1.64) 0.54 (0.26, 1.11)
Tobacco consumption
 No (Ref. Yes) 0.92 (0.30, 2.81) 1.31 (0.46, 3.73) 1.26 (0.62, 2.56)
Psychosocial health; 1 (low)—10 (high) 0.99 (0.75, 1.31) 0.96 (0.70, 1.30) 1.40 (1.12, 1.76)**
Nagelkerke R2 0.10 0.15 0.14
  1. **p < 0.01; 1Normal BMI as defined by CDC categorization; 2Odds ratio; 395% confidence interval; 4Other category was excluded; 5Statistics could not be computed as there were too few individuals; n is smaller than the number who responded as some cases were excluded from the regression analysis due to missing values for some variables