| Hazardous drinking/participants | (%) | Age-adjusted | Multivariate-adjusteda |
---|---|---|---|---|
 | OR (95% CI) | OR (95% CI) | ||
Equivalent household income | Â | Â | Â | Â |
 Higher education group (n=7531) |  |  |  |  |
  ≥4.00 million JPY | 73/2449 | (3.0) | 1.00 | 1.00 |
  3.00–3.99 million JPY | 30/1571 | (1.9) | 0.67 (0.44–1.04) | 0.79 (0.50–1.23) |
  2.00–2.99 million JPY | 71/2278 | (3.1) | 1.13 (0.81–1.57) | 1.08 (0.76–1.53) |
  ≤1.99 million JPY | 38/1233 | (3.1) | 1.12 (0.75–1.67) | 0.99 (0.64–1.53) |
 Lower education group (n=3500) |  |  |  |  |
  ≥4.00 million JPY | 10/460 | (2.2) | 1.00 | 1.00 |
  3.00–3.99 million JPY | 16/497 | (3.2) | 1.53 (0.69–3.41) | 1.59 (0.70–3.59) |
  2.00–2.99 million JPY | 72/1236 | (5.8) | 2.85 (1.46–5.59) | 2.60 (1.31–5.16) |
  ≤1.99 million JPY | 87/1307 | (6.7) | 3.32 (1.70–6.46) | 2.45 (1.23–4.86) |