Table 2 Factors associated with increased prevalence of high risk behaviours^a (condom not used in last sex and/or 3+ sexual partners in past 12 months): ^b age adjusted, among testers

Age groups

 16–19 years

42 %

1

1

35 %

1

1

 20–24 years

33 %

1.74 (1.21,2.50)

0.003

1.12 (0.66,1.90)

0.680

34 %

1.68 (1.27,2.23)

<0.001

1.39 (0.96,2.01)

0.082

 25+ years

25 %

2.06 (1.37, 3.11)

0.001

2.12 (1.27,3.52)

0.004

31 %

2.61 (1.91,3.56)

<0.001

1.60 (1.11,2.32)

0.012

Education

 < high school

46 %

1.08 (0.78,1.49)

0.637

1.18 (0.78,1.78)

0.444

49 %

1.38 (1.08,1.76)

0.011

1.40 (1.05,1.86)

0.022

Sexual identity

 Gay/Bisexual

7 %

1.67 (0.81,3.46)

0.165

2.73 (1.52,4.90)

0.001

3 %

1.26 (0.57,2.78)

0.570

1.02 (0.47,2.22)

0.968

Age at sexual debut

 <16 years old

79 %

1.89 (1.28,2.79)

0.001

0.98 (0.60,1.60)

0.922

67 %

2.00 (1.53, 2.58)

<0.001

1.60 (1.16,2.18)

0.004

Condom used last sex

 No

62 %

–

–

1.54 (0.98,2.40)

0.058

68 %

–

–

1.96 (1.39,2.77)

<0.001

Sex partners in past year

 3 or more

39 %

–

–

1.66 (1.11,2.49)

0.013

21 %

–

–

1.78 (1.29,2.45)

<0.001

Current smoker

 Yes

44 %

1.45 (1.05,2.00)

0.025

1.41 (0.94,2.11)

0.098

54 %

1.16 (0.91,1.49)

0.229

1.16 (0.88,1.54)

0.300

Alcohol intake

 >7+

49 %

1.85 (1.34,2.53)

<0.001

1.04 (0.69,1.55)

0.857

37 %

1.44 (1.11,1.87)

0.006

0.98 (0.74,1.31)

0.912

Drunk/high last sex

 Yes

63 %

2.39 (1.68, 3.40)

<0.001

2.27 (1.51,3.42)

<0.001

57 %

2.00 (1.48,2.65)

<0.001

1.74 (1.29,2.35)

<0.001

Methamphetamine used

 Yes

17 %

2.25 (1.33,3.79)

0.002

2.93 (1.84,4.67)

<0.001

10 %

2.14 (1.32,3.48)

0.002

1.80 (1.16,2.80)

0.009

Ecstasy used

 Yes

20 %

3.00 (1.79,5.03)

<0.001

2.98 (1.92,4.62)

<0.001

12 %

2.03 (1.30,3.18)

0.002

2.46 (1.63,3.70)

<0.001

Cannabis used

 Yes

40 %

2.16 (1.53,3.05)

<0.001

1.86 (1.24,2.79)

0.003

36 %

1.94 (1.48,2.55)

<0.001

1.43 (1.07,1.91)

<0.001