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. 2014 Jan 9;14:16. doi: 10.1186/1471-2458-14-16

Table 5.

Mental health problems and health behaviour in the10 th grade as predictors of non-completion of upper secondary school in girls (n = 4751)

 
Crude
Model 1 a
Model 2 b
Model 3 c
  OR 95% CI OR 95% CI OR 95% CI OR 95% CI
SDQ externalising (per 2 points)
1.59
1.51
1.66*
1.48
1.41
1.56*
1.44
1.36
1.52*
1.31
1.24
1.39*
SDQ internalising (per 2 points)
1.29
1.24
1.35*
1.21
1.16
1.27*
1.08
1.03
1.14*
1.09
1.04
1.15*
Health behaviour
 
 
 
 
 
 
 
 
 
 
 
 
Smoking
 
 
 
 
 
 
 
 
 
 
 
 
  No
ref.
 
*
 
 
 
 
 
 
ref.
 
*
  Sometimes
1.46
1.21
1.77
 
 
 
 
 
 
1.30
1.05
1.62
  Yes, every day
4.75
4.01
5.62
 
 
 
 
 
 
2.77
2.23
3.45
Alcohol last year
 
 
 
 
 
 
 
 
 
 
 
 
  Never
ref.
 
*
 
 
 
 
 
 
ref.
 
 
  A few times last year
0.85
0.70
1.04
 
 
 
 
 
 
0.83
0.66
1.05
  1–3 times a month
1.36
1.13
1.64
 
 
 
 
 
 
0.88
0.69
1.13
  Once a week or more
1.92
1.53
2.41
 
 
 
 
 
 
0.93
0.68
1.26
Physical activity
 
 
 
 
 
 
 
 
 
 
 
 
  0 hours per week
ref.
 
*
 
 
 
 
 
 
ref.
 
*
  1–2 hours per week
0.77
0.63
0.95
 
 
 
 
 
 
1.12
0.89
1.43
  3–4 hours per week
0.49
0.39
0.61
 
 
 
 
 
 
0.85
0.66
1.10
  5–7 hours per week
0.34
0.27
0.44
 
 
 
 
 
 
0.65
0.49
0.86
  8 hours or more per week 0.41 0.31 0.54             0.78 0.57 1.07

aModel 1: SDQ externalising and SDQ internalising separately, adjusted for ethnic background, county of residence, parents’ education, income and marital status.

bModel 2: SDQ externalising and SDQ internalising adjusted for each other, and for ethnic background, county of residence, parents’ education, income and marital status.

cModel 3: Like model 2, in addition adjusted for health behaviours.

*p ≤ 0.001.