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Table 2 Effect of socio-demographic factors, college environmental factors, and experiential and normative factors on drinking behaviour, drinking at college study Belgium 2010: odds ratio of the negative binomial regression and 95% confidence interval (n = 6,906)

From: Alcohol drinking among college students: college responsibility for personal troubles

  Frequency of drinking No. of drinks Frequency of abusive drinking
  Model 1 Model 2 Model 1 Model 2 Model 1 Model 2
  OR 95% CI OR 95% CI OR 95% CI OR 95% CI OR 95% CI OR 95% CI
Gender             
 Male 1.58 (1.55 - 1.61) 1.34 (1.32 - 1.37) 2.14 (2.05 - 2.23) 1.65 (1.58 - 1.72) 2.29 (2.22 - 2.37) 1.71 (1.65 - 1.77)
 Female (ref) 1.00   1.00   1.00 . 1.00 . 1.00   1.00  
Age (y.) 0.98 (0.97 - 0.98) 1.00 (1.00 - 1.00) 0.93 (0.92 - 0.94) 0.96 (0.95 - 0.97) 0.91 (0.91 - 0.92) 0.95 (0.94 - 0.95)
Time attending University (y.) 1.07 (1.07 - 1.08) 1.04 (1.03 - 1.05) 1.08 (1.07 - 1.10) 1.03 (1.02 - 1.05) 1.11 (1.09 - 1.12) 1.05 (1.04 - 1.06)
Living on the campus             
 Yes 1.15 (1.11 - 1.19) 1.02 (0.99 - 1.05) 1.34 (1.25 - 1.43) 1.10 (1.03 - 1.17) 1.56 (1.48 - 1.64) 1.21 (1.15 - 1.27)
 No (ref) 1.00   1.00   1.00   1.00   1.00   1.00  
Room-mates (no.) 1.05 (1.04 - 1.06) 1.02 (1.02 - 1.03) 1.06 (1.05 - 1.07) 1.02 (1.01 - 1.02) 1.06 (1.06 - 1.07) 1.02 (1.01 - 1.02)
Living arrangements             
 Dormitory 0.92 (0.84 - 1.00) 1.02 (0.94 - 1.10) 0.82 (0.74 - 0.91) 0.94 (0.87 - 1.03) 0.85 (0.80 - 0.90) 1.00 (0.94 - 1.06)
 Living with parents (ref) 1.00   1.00   1.00   1.00   1.00   1.00  
Student representative             
 Yes    1.03 (0.94 - 1.13)    0.97 (0.89 - 1.06)    0.84 (0.78 - 0.89)
 No (ref)    1.00     1.00     1.00  
Involvement in folklore             
 High    1.46 (1.37 - 1.57)    1.82 (1.72 - 1.92)    2.11 (2.04 - 2.19)
 Medium    1.16 (1.08 - 1.24)    1.34 (1.26 - 1.42)    1.57 (1.50 - 1.63)
 None (ref)    1.00     1.00     1.00  
Pre-partying (times per month)    1.06 (1.06 - 1.07)    1.08 (1.07 - 1.08)    1.08 (1.08 - 1.09)
Permissiveness (score 0-16)    1.08 (1.07 - 1.09)    1.07 (1.06 - 1.08)    1.06 (1.05 - 1.06)
Drinking by friends (drinks per day)    1.02 (1.01 - 1.03)    1.03 (1.02 - 1.03)    1.02 (1.02 - 1.03)
Drinking by students in general (drinks per day)    0.99 (0.98 - 0.99)    0.99 (0.99 - 1.00)    0.99 (0.99 - 0.99)
Positive consequences (no.)    1.10 (1.09 - 1.10)    1.11 (1.10 - 1.12)    1.10 (1.09 - 1.10)
Covariance Parameter (study programme) 0.03 (0.02-0.05) 0.01 (0.01-0.03) 0.05 (0.03-0.11) 0.01 (0.00-0.03) 0.23 (0.15 – 0.38) 0.09 (0.06 – 0.17)
−2LL 19001 18805 21694 18907 43029 30601