Table 2.

Proportion of early onset drinking (EOD), early onset excessive drinking (EOE), abstinent (14–16 years) and hazardous and non-hazardous drinking in late adolescence/young adulthood (18–25) in the Norwegian and Australian sample

	Norway			Australia
	n	%	95% CI	n	%	95% CI
Alcohol use in adolescence
EOD	84	25.5	20.8–30.2	442	56.2	52.7–59.7
EOE	44	13.4	9.7–17.1	253	32.2	28.9–35.5
Abstinent	201	61.1	55.8–66.4	91	11.6	9.4–13.8
Alcohol use in late adolescence/young adulthood
Non-hazardous drinking (AUDIT < 8)	173	53.2	47.8–58.6	477	61.1	57.7–64.5
Hazardous drinking (AUDIT ≥8)	152	46.8	41.4–52.2	304	38.9	35.5–42.3

Note. EOD, EOE and abstinence are measured differently in the Norwegian and Australian samples and prevalences are therefore not directly comparable

95% CI = 95% confidence interval of percentage estimate

AUDIT Alcohol Use Disorders Identification Test