Table 3.
Population level impact of (potentially) modifiable risk factors
| Potentially modifying risk factors | High risk sexual behavioursa | STI Diagnosisb | ||
|---|---|---|---|---|
| PAR% (95 % CI) | PAR% (95 % CI) | |||
| Drug & alcohol related | Male | Female | Male | Female |
| Cannabis use | 32 % (25, 39 %) | 24 % (20, 29 %) | 27 % (20, 36 %) | 13 % (10, 17 %) |
| Ecstasy use | 29 % (22, 37 %) | 11 % (9, 14 %) | 30 % (25 37 %) | 13 % (10, 16 %) |
| Methamphetamine use | 20 % (14, 25 %) | 11 % (8, 14 %) | 28 % (22, 34 %) | 7 % (5, 10 %) |
| Alcohol intake (7+/week) | 30 % (23, 36 %) | 14 % (11, 18 %) | – | – |
| Drunk/high last sex | 34 % (28, 40 %) | 21 (17, 25 %) | 31 % (24, 39 %) | 17 % (13, 21 %) |
| High risk sexual behavioursa | ||||
| No condom use in last sex | – | – | 72 % (62, 80 %) | 40 % (30, 49 %) |
| +3 or more sexual partnersd | ||||
| Modifying drug use | ||||
| Cannabis use | ||||
| + Ecstasy use | 45 % (36, 51 %) | 30 % (24, 35 %) | 43 % (34, 51 %) | 20 % (15, 25 %) |
| + Methamphetamine use | ||||
| Modifying drug/alcohol | ||||
| + high risk sexual behaviours† | ||||
| All drug related | ||||
| + Alcohol relatedc | 76 % (71, 80 %) | 70 % (65, 73 %) | 74 % (66, 80 %) | 70 % (63, 75 %) |
| + No condom use last sex | ||||
| +3 or more sexual partnersd | ||||
anot used condom in last sex, and/or 3+ sexual partners past 12 months; bamong testers
cincluding only drunk/high in last sex for the “STI diagnosis”; dpast 12 months