Table 2.

Multivariable analyses.

Explanatory Variable	Drinking any Alcohol during the Last 30 Days	Been Intoxicated during the Last 30 Days	Problems Because of Own Alcohol Use during the Last 12 Months
	OR (95% CI)	OR (95% CI)	OR (95% CI)
Gender
Male	Reference	Reference	Reference
Female	0.56 (0.37 to 0.84) *	0.79 (0.58 to 1.08)	0.64 (0.46 to 0.88) **
School performance †
6–8.9 (average)	Reference	Reference	Reference
>9 (above average)	0.60 (0.39 to 0.93) *	0.88 (0.60 to 1.29)	0.58 (0.39 to 0.86) **
<6 (below average)	1.34 (0.67 to 2.69)	1.42 (0.89 to 2.26)	1.22 (0.75 to 1.98)
Father’s education
Medium long or higher education	Reference	Reference	Reference
Upper secondary education	0.66 (0.40 to 1.09)	1.10 (0.74 to 1.64)	1.19 (0.79 to 1.78)
Lower secondary education or less	0.84 (0.49 to 1.42)	0.96 (0.63 to 1.45)	1.40 (0.92 to 2.13)
Mother’s education
Medium long or higher education	Reference	Reference	Reference
Upper secondary education	1.39 (.88 to 2.21)	0.90 (0.63 to 1.29)	1.27 (0.88 to 1.84)
Lower secondary education or less	0.97 (0.53 to 1.79)	0.76 (0.48 to 1.22)	1.35 (0.83 to 2.18)
Wealth
About the same	Reference	Reference	Reference
Better off	1.15 (0.76 to 1.74)	1.33 (0.97 to 1.83)	1.22 (0.88 to 1.70)
Less well off	0.74 (0.35 to 1.58)	0.96 (0.51 to 1.81)	1.10 (0.58 to 2.07)
Pos. alcohol expectancies (things happen to participants personally)
Likely	Reference	Reference	Reference
Unsure/Unlikely	0.28 (0.14 to 0.56) **	0.25 (0.07 to 0.87) *	0.17 (0.05 to 0.60) **
Neg. alcohol expectancies (things happen to participants personally)
Unsure/Unlikely	Reference	Reference	Reference
Likely	1.18 (0.77 to 1.81)	2.20 (1.50 to 3.21) **	2.80 (1.90 to 4.12) **
Belief risk
Risk	Reference	Reference	Reference
No risk or do not know	0.22 (0.08 to 0.55) **	0.57 (0.22 to 1.52)	0.43 (0.16 to 1.18)
Satisfied health
Satisfied	Reference	Reference	Reference
Not satisfied or neither nor	0.70 (0.40 to 1.23)	0.88 (0.56 to 1.37)	0.94 (0.59 to 1.51)
Satisfied themselves
Satisfied	Reference	Reference	Reference
Not satisfied or neither nor	1.20 (0.73 to 1.97)	1.36 (0.93 to 1.99)	1.05 (0.71 to 1.57)
Parents know where their children are on Saturday
Know always/quiet often	Reference	Reference	Reference
Know sometimes/Usually do not know	0.86 (0.27 to 2.74)	0.84 (0.39 to 1.81)	1.03 (0.41 to 2.56)
Satisfied relationship with mother
Satisfied	Reference	Reference	Reference
Not satisfied or Neither nor	1.38 (0.61 to 3.11)	1.18 (0.69 to 2.04)	1.96 (1.08 to 3.56) *
Satisfied relationship with father
Satisfied	Reference	Reference	Reference
Not satisfied or Neither nor	0.80 (0.44 to 1.45)	1.17 (0.74 to 1.86)	1.01 (0.62 to 1.63)
Satisfied relationship with friends
Satisfied	Reference	Reference	Reference
Not satisfied or Neither nor	0.33 (0.17 to 0.65) **	0.43 (0.22 to 0.84) *	0.72 (0.37 to 1.39)
Serious problems with parents
Zero occasions	Reference	Reference	Reference
1 or more occasion	1.60 (0.94 to 2.72)	1.28 (0.89 to 1.85)	1.62 (1.11 to 2.36) *
Serious problems with friends
Zero occasions	Reference	Reference	Reference
1 or more occasion	1.62 (1.01 to 2.61) *	1.56 (1.11 to 2.19) *	2.65 (1.86 to 3.76) **
Friends drink
Most/all	Reference	Reference	Reference
None/a few/some	0.40 (0.20 to 0.77) **	0.53 (0.21 to 1.35)	0.49 (0.22 to 1.10)
Friends get drunk
Most/all	Reference	Reference	Reference
None/a few/some	0.92 (0.57 to 1.50)	0.27 (0.18 to 0.43) **	0.50 (0.33 to 0.75) **
Older siblings drink
Yes	Reference	Reference	Reference
No	0.54 (0.24 to 1.22)	0.66 (0.28 to 1.55)	0.83 (0.36 to 1.93)
Older siblings get drunk
Yes	Reference	Reference	Reference
No	0.71 (0.37 to 1.39)	0.61 (0.33 to 1.13)	0.56 (0.31 to 1.03)

¹ significant results * for p < 0.05 & ** for p < 0.01; † related to the Danish grading system.