Table 1

Baseline characteristics of sample, by intervention group

Characteristics	Baseline characteristics	Total	Intervention	Control
Characteristics	Baseline characteristics	(N=994)	(n=507)	(n=487)
Age (years)	16–19	56	58	55
Age (years)	20–29	44	42	45
Gender	Male	42	42	42
Gender	Female	58	58	58
Postcode	Metropolitan	62	62	62
	Rural	26	27	26
	Unknown	12	11	12
Country of birth	Australia	92	92	91
Country of birth	Overseas	8	8	9
Finished high school	No	62	61	62
Finished high school	Yes	38	39	38
Ever had sex (vaginal/anal intercourse)	Yes	82	81	83
Ever had sex (vaginal/anal intercourse)	No	18	19	17
Condom use with casual/multiple/new partner(s)	Always	24	24	23
	Not always	24	23	25
	No risky partners	52	53	51
STI test in past 6 months	Yes	10	9	10
STI test in past 6 months	No	90	91	90
Knowledge score out of eight questions	>5	39	36	41
Knowledge score out of eight questions	≤5	61	64	59
Frequency of binge drinking	>1 week	38	35	40
Frequency of binge drinking	<1 week	62	65	60
Used illicit drugs in the past month	Yes	49	47	51
Used illicit drugs in the past month	No	51	53	49