Predicting hazardous drinking in late adolescence/young adulthood from early and excessive adolescent drinking - a longitudinal cross-national study of Norwegian and Australian adolescents

Table 1 Descriptives of study variables

	Mean	Standard deviation
Norway (n = 329)
Girls (a), %	60.2
Age (m)	14.58	0.31
Hyperactivity (a)	1.13	0.53
Conduct problems (a)	2.60	2.87
Early sexual intercourse (a), %	8.3
Smoking (a), %	25.4
Friends’ substance use (a), %	43.3
Mother’s education (m)
Primary school (9 years or less), %	3.4
Secondary school (1–3 years), %	37.5
Higher education (≤4 years), %	25.7
Higher education (> 4 years), %	33.4
Poor family management (a)	1.85	0.58
Alcohol and drug use in the family (a), %	10.3
Australia (n = 786)
Girls (a), %	54.8
Age (m)	14.89	0.38
Impulsivity (a)	2.06	0.53
Conduct problems (a)	1.12	0.30
Early sexual intercourse (a), %	11.1
Smoking (a), %	53.0
Friends’ substance use (a), %	80.0
Mother’s education (m)
Primary school, %	42.2
Completed secondary school, %	31.9
Higher education, %	26.1
Poor family management (a)	1.86	0.48
Alcohol and drug use in the family (a), %	13.4

Note. Variables are measured differently in the Norwegian and Australian samples and values are therefore not directly comparable
(a) = Adolescent self-report; (m) = Mother’s report

ISSN: 1471-2458