Table 5.
Prevalence of problem behaviour by presence of risk factorsa
| Risk factors | Proportion with risk factor | Whether problem behaviour by presence of risk factor | |||
|---|---|---|---|---|---|
| No | Yes | ||||
| Per cent (95 % CI) | N | Per cent (95 % CI) | N | Per cent (95 % CI) | |
| K10 score – | |||||
| Low | 50.9 (49.0–52.8) | 1430 | 98.5 (97.8–99.2) | 23 | 1.5 (0.8–2.2) |
| Moderate | 29.1 (27.3–31.0) | 836 | 96.6 (95.4–97.8) | 33 | 3.4 (2.2–4.6) |
| High | 13.3 (12.0–14.7) | 385 | 92.9 (90.2–95.6) | 32 | 7.1 (4.4–9.8) |
| Very high | 6.6 (5.7–7.6) | 189 | 81.8 (76.0–87.7) | 39 | 18.2 (12.3–24.0) |
| Major depressive disorderb | 7.6 (6.7–8.6) | 92 | 3.1 (2.4–3.8) | 35 | 13.0 (8.6–17.4) |
| Self–harmed | 6.9 (5.9–7.8) | 96 | 3.2 (2.5–3.9) | 31 | 13.6 (8.7–18.5) |
| Attempted suicidec | 2.1 (1.6–2.6) | 110 | 3.4 (2.8–4.1) | 17 | 26.5 (14.7–38.3) |
| Current alcohol user | 13.0 (11.7–14.2) | 71 | 4.0 (3.1–5.0) | 42 | 7.8 (5.4–10.2) |
| Binged on alcohol | 9.0 (8.0–10.0) | 81 | 4.2 (3.3–5.1) | 32 | 8.3 (5.5–11.2) |
| Current smoker | 5.1 (4.3–6.0) | 96 | 4.4 (3.5–5.3) | 17 | 8.6 (4.5–12.8) |
| Ever used cannabis | 11.6 (10.2–13.0) | 80 | 4.0 (3.1–4.9) | 33 | 10.1 (6.7–13.5) |
| Other drug userd | 4.5 (3.6–5.4) | 99 | 4.4 (3.5–5.3) | 14 | 10.7 (5.0–16.5) |
| Ever had sex | 14.9 (13.4–16.4) | 80 | 4.3 (3.3–5.2) | 33 | 7.3 (4.8–9.8) |
| Low self–esteeme | 2.4 (1.9–3.0) | 112 | 3.5 (2.8–4.2) | 15 | 19.9 (10.1–29.6) |
| Used servicesf | 18.0 (16.2–19.7) | 71 | 3.6 (2.8–4.5) | 42 | 9.6 (6.6–12.5) |
| Family functioning-Poor | 4.1 (3.3–5.0) | 119 | 93.3 (88.8–97.8) | 10 | 6.7 (2.2–11.2) |
| Very good | 57.9 (55.8–60.0) | 1620 | 96.7 (95.8–97.6) | 60 | 3.3 (2.4–4.2) |
CI Confidence Interval
aAge ranges for risk factors: 11–17 yrs – K10, major depressive disorder, self–esteem, family functioning; 12–17 yrs – self–harm, suicide attempt; 13–17 yrs – current alcohol user, binged on alcohol, current smoker, ever used cannabis, other drug user, ever had sex, used services
bYouth–reported
cIn previous 12 months
dIncludes using prescription drugs for non–medical purposes; ecstasy; amphetamines and methamphetamines; cocaine; hallucinogens such as LSD; inhalants such as petrol, glue, aerosols, paint, solvents or nitrous; heroin; steroids; GHB or ketamine
eAs measured by DISC IV and equating to a 50 % probability of having depression causing an impact on functioning in the previous 12 months
fYouth–reported use of any service for emotional or behavioural problems in the past 12 months