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Table 2 Association between socioeconomic, demographic and lifestyle-related factors and unhealthy diet: multivariate logistic regression analysis

From: Socioeconomic, demographic and lifestyle-related factors associated with unhealthy diet: a cross-sectional study of university students

Variables Complete-case analysis (n=593) Multiple imputation (n=924, m=5) Multiple imputation (n=924, m=30)
OR 95% CI OR 95% CI OR 95% CI
a) Socioeconomic and demographic
 Age
  15-19 1.00 Reference     
  20-24 1.00 (0.70; 1.43) 0,93 (0.67; 1.28) 1.02 (0.73; 1.42)
  25-25+ 0.92 (0.46; 1.84) 0,97 (0.51; 1.84) 0.95 (0.53; 1.70)
 Gender
  Woman 1.00 Reference     
  Man 1.75* (1.20; 2.55) 1.80* (1.26; 2.57) 1.78* (1.26; 2.51)
 SES father
  Low 1.00 Reference     
  High 1.24 (0.86; 1.78) 1.22 (0.88; 1.68) 1.21 (0.86; 1.70)
 SES mother
  Low 1.00 Reference     
  High 0.63* (0.44; 0.92) 0.63* (0.45; 0.89) 0.64* (0.45; 0.92)
 Family home
  University city 1.00 Reference     
  Other town 1.69* (1.15; 2.48) 1.89* (1.36; 2.61) 1.69* (1.19; 2.41)
 Cooks for him or herself during the academic year
  No 1.00 Reference     
  Yes 0.98 (0.66; 1.45) 0.90 (0.61; 1.31) 0.99 (0.68; 1.46)
 Degree course
  Social Sciences 1.00 Reference     
  Health Sciences 0.63* (0.42; 0.95) 0.59* (0.41; 0.87) 0.65* (0.46; 0.93)
b) Lifestyle-related
 BMI
  Normal weight 1.00 Reference     
  Underweight 2.31* (1.14; 4.82) 2.19* (1.07; 4.45) 2.28* (1.16; 4.46)
  Overweight 0.81 (0.51; 1.28) 0.74 (0.43; 1.26) 0.78 (0.50; 1.22)
  Obesity 1.04 (0.39; 2.74) 1.04 (0.43; 2.52) 1.03 (0.42; 2.51)
 HPA
  No 1.00 Reference     
  Yes 0.82 (0.57; 1.18) 0.82 (0.60; 1.11) 0.80 (0.57; 1.13)
 Tobacco use
  No 1.00 Reference     
  Yes 1.20 (0.76; 1.90) 1.20 (0.78; 1.83) 1.21 (0.79; 1.86)
 Other harmful substances
  No 1.00 Reference     
  Yes/occasional 1.29 (0.84; 1.97) 1.33 (0.91; 1.95) 1.28 (0.86; 1.91)
  1. Abbreviations: BMI body mass index, HPA healthy physical activity, SES socioeconomic status
  2. *p<0.05. Complete-case analysis, multiple imputation where m= number of subsets.