Table 4.
Association of daily drinking and binge drinking during follow-up with socio-economic, behavioural and biological factors.
| Factor | % of Visits with Daily Drinking Reported | Adjusted Risk Ratio a (95% CI) | % of Visits with Binge Drinking Reported | Adjusted Risk Ratio b (95% CI) |
|---|---|---|---|---|
| Calendar period | p < 0.0001 | p < 0.0001 | ||
| April 2008–September 2008 | 28% | 1 | 24% | 1 |
| October 2008–March 2009 | 27% | 0.87 (0.64–1.19) | 22% | 0.92 (0.68–1.25) |
| April 2009–September 2009 | 23% | 0.65 (0.51–0.89) | 15% | 0.42 (0.31–0.58) |
| October 2009–March 2010 | 22% | 0.59 (0.43–0.80) | 13% | 0.33 (0.24–0.46) |
| April 2010–September 2010 | 18% | 0.42 (0.30–0.58) | 10% | 0.26 (0.19–0.36) |
| October 2010–March 2011 | 20% | 0.57 (0.41–0.79) | 12% | 0.36 (0.26–0.51) |
| April 2011–September 2011 | 19% | 0.52 (0.38–0.74) | 14% | 0.50 (0.37–0.70) |
| October 2011–March 2012 | 19% | 0.60 (0.43–0.84) | 13% | 0.46 (0.33–0.64) |
| April 2012–September 2012 | 16% | 0.43 (0.29–0.64) | 16% | 0.77 (0.54–1.12) |
| Socio-economic factors | ||||
| Age Group | p = 0.7 | p = 0.01 | ||
| 14–24 years | 20% | 1 | 17% | 1 |
| 25–34 years | 23% | 1.19 (0.84–1.68) | 15% | 0.72 (0.53–1.00) |
| 35+ years | 19% | 1.12 (0.64–1.94) | 8% | 0.42 (0.24–0.73) |
| Religion | p = 0.1 | p = 0.002 | ||
| Catholic | 22% | 1 | 15% | 1 |
| Anglican | 21% | 0.79 (0.54–1.16) | 17% | 1.23 (0.85–1.79) |
| Muslim | 21% | 0.64 (0.43–0.95) | 14% | 0.71 (0.47–1.05) |
| Other | 15% | 0.49 (0.19–1.24) | 6% | 0.19 (0.08–0.51) |
| Source of income | p < 0.001 | p < 0.001 | ||
| Sex work alone | 26% | 1 | 18% | 1 |
| Sex work and other job | 24% | 1.12 (0.94–1.32) | 17% | 1.21 (1.01–1.48) |
| No sex work | 7% | 0.25 (0.19–0.33) | 5% | 0.40 (0.26–0.56) |
| Behavioural factors | ||||
| Place of recruiting clients | p < 0.001 | p < 0.001 | ||
| Bar, club or restaurant | 28% | 1 | 19% | 1 |
| Street | 20% | 0.75 (0.59–0.96) | 13% | 0.79 (0.59–1.06) |
| Other | 12% | 0.56 (0.45–0.70) | 9% | 0.58 (0.45–0.75) |
| Several | 32% | 1.02 (0.88–1.19) | 23% | 1.10 (0.92–1.31) |
| Number of lifetime partners | p < 0.001 | p = 0.1 | ||
| <20 | 11% | 1 | 10% | 1 |
| 20–49 | 14% | 0.90 (0.46–1.75) | 11% | 0.87 (0.46–1.65) |
| ≥50 or can’t remember | 25% | 1.83 (1.07–3.13) | 16% | 1.41 (0.83–2.41) |
| Number of partners in the last month | p < 0.001 | p < 0.001 | ||
| 0–4 | 13% | 1 | 9% | 1 |
| 5–19 | 27% | 1.82 (1.51–2.20) | 18% | 1.63 (1.32–2.03) |
| 20–49 | 35% | 2.72 (2.19–3.38) | 23% | 2.78 (2.16–3.58) |
| ≥50 or can’t remember | 38% | 3.05 (2.35–3.96) | 28% | 3.02 (2.23–4.11) |
| Biological factors | ||||
| Used drugs of addiction | p < 0.001 | p < 0.001 | ||
| No | 17% | 1 | 12% | 1 |
| Yes | 39% | 1.93 (1.64–2.28) | 26% | 1.75 (1.46–2.09) |
| HIV at previous visit | p = 0.2 | p = 0.6 | ||
| No | 24% | 1 | 17% | 1 |
| Yes | 18% | 0.81 (0.62–1.08) | 12% | 0.78 (0.60–1.03) |
| HSV2 at previous visit | p = 0.2 | p = 0.002 | ||
| No | 19% | 1 | 13% | 1 |
| Yes | 22% | 1.26 (0.87–1.81) | 15% | 1.76 (1.22–2.56) |
a Adjusted for time period, source of income, place of recruitment, number of lifetime partners and number of partners in the last month; b Adjusted for time period, age, religion, source of income, place of recruitment and number of partners in the last month.