Background
Method
Sample
2004 | 2007 | 2010 | 2013 | |||||
---|---|---|---|---|---|---|---|---|
N
| % |
N
| % |
N
| % |
N
| % | |
Total sample size | 29,445 | 23,356 | 26,648 | 23,855 | ||||
Sample size of the age group 12–17 | 2671 | 9.07 | 1455 | 6.23 | 1521 | 5.71 | 1157 | 4.85 |
Male | 1250 | 46.04 | 725 | 48.01 | 738 | 47.13 | 577 | 49.78 |
Age | ||||||||
12 | 386 | 14.22 | 205 | 13.58 | 232 | 14.81 | 151 | 13.03 |
13 | 477 | 17.57 | 239 | 15.83 | 259 | 16.54 | 183 | 15.79 |
14 | 453 | 16.69 | 247 | 16.36 | 242 | 15.45 | 188 | 16.22 |
15 | 463 | 17.05 | 256 | 16.95 | 275 | 17.56 | 197 | 17.00 |
16 | 469 | 17.27 | 289 | 19.14 | 264 | 16.86 | 224 | 19.33 |
17 | 467 | 17.20 | 274 | 18.15 | 294 | 18.77 | 216 | 18.64 |
Socioeconomic advantage | ||||||||
Least advantaged | 431 | 15.87 | 239 | 15.86 | 248 | 15.84 | 193 | 16.65 |
2nd quintile | 518 | 19.08 | 275 | 18.25 | 314 | 20.05 | 211 | 18.21 |
3rd quintile | 522 | 19.23 | 287 | 19.04 | 284 | 18.14 | 219 | 18.90 |
4th quintile | 644 | 23.72 | 354 | 23.49 | 346 | 22.09 | 262 | 22.61 |
Most advantaged | 600 | 22.10 | 352 | 23.36 | 374 | 23.88 | 274 | 23.64 |
Australian born | 2448 | 91.65 | 1283 | 88.18 | 1372 | 90.20 | 990 | 85.57 |
Response Rate | 46 | 49 | 51 | 49 |
Measures
Procedure
Analysis
Results
2004 | 2007 | 2010 | 2013 | |||||
---|---|---|---|---|---|---|---|---|
% | 95% CI | % | 95% CI | % | 95% CI | % | 95% CI | |
New South Wales | 12.86 | (10.21,16.09) | 10.00 | (7.34,13.50) | 4.72 | (3.08,7.17) | 6.25 | (4.01,9.63) |
Victoria | 16.92 | (13.55,20.91) | 20.82 | (16.49,25.94) | 11.78 | (8.12,16.81) | 12.34 | (8.88,16.90) |
Queensland | 18.39 | (15.40,21.82) | 18.78 | (14.28,24.3) | 9.18 | (6.39,13.00) | 6.27 | (3.85,10.05) |
Western Australia | 18.25 | (13.22,24.66) | 16.38 | (11.34,23.06) | 14.01 | (8.73,21.72) | 4.81 | (1.74,12.53) |
South Australia | 18.78 | (13.13,26.13) | 20.05 | (13.45,28.81) | 8.14 | (4.03,15.75) | 9.99 | (5.20,18.35) |
Tasmania | 23.34 | (15.54,33.51) | 33.85 | (21.05,49.54) | 23.67 | (13.68,37.77) | 14.59 | (5.31,34.22) |
Northern Territory | 14.47 | (7.521,26.04) | 14.09 | (7.17,25.85) | 4.16 | (1.26,12.86) | 16.49 | (7.96,31.08) |
Overall | 16.24 | (14.61,18.01) | 16.39 | (14.41,18.58) | 9.03 | (7.50,10.84) | 8.13 | (6.61,9.98) |
Past 12 months alcohol use | Having 4+ drinks on a day | Weekly drinking | ||||
---|---|---|---|---|---|---|
OR | 95% CI | OR | 95% CI | OR | 95% CI | |
Level 1 variables | ||||||
Gender (Ref: Male) | ||||||
Female | 1.12 | (0.99, 1.27) | 0.85* | (0.74, 0.97) | 0.96 | (0.72, 1.28) |
Age | 2.21*** | (2.12, 2.30) | 2.29*** | (2.17, 2.42) | 2.32*** | (2.13, 2.53) |
Socio-economic index for area (Ref: Lowest quintile) | ||||||
2nd quintile | 1.25 | (0.98, 1.60) | 1.37 | (0.98, 1.93) | 1.76** | (1.19, 2.58) |
3rd quintile | 1.27 | (1.00, 1.61) | 1.46* | (1.01, 2.10) | 1.43* | (1.09, 1.87) |
4th quintile | 1.16 | (0.89, 1.51) | 1.24 | (0.90, 1.71) | 1.27 | (0.85, 1.89) |
Highest quintile | 1.26 | (1.02, 1.56) | 1.17 | (0.86, 1.60) | 1.47* | (1.05, 2.06) |
Australian born | 2.12*** | (1.64, 2.76) | 2.18** | (1.39, 3.41) | 1.56 | (0.95, 2.58) |
Parental supply of alcohol |
a
| 0.87 | (0.71, 1.07) | 1.04 | (0.70, 1.54) | |
Level 2 variables | ||||||
Prevalence of parental supply | 1.06*** | (1.04, 1.07) | 1.04*** | (1.03, 1.05) | 1.03 | (0.99, 1.07) |
Prevalence of peer supply | 1.04*** | (1.03, 1.06) | 1.01 | (0.98, 1.05) | 1.03 | (0.97, 1.08) |
Survey year (Ref: 2004) | ||||||
2007 | 0.90 | (0.79, 1.02) | 0.92 | (0.82, 1.03) | 0.77 | (0.54, 1.12) |
2010 | 0.81** | (0.69, 0.94) | 1.03 | (0.86, 1.23) | 0.57* | (0.36, 0.90) |
2013 | 0.65** | (0.51, 0.83) | 0.71* | (0.53, 0.96) | 0.43** | (0.24, 0.78) |