Profile table of study cohort compared to population data†
| Demographics | Sample (n=500) | Population 2006† |
| Age | ||
| 18–25 years | 20.4% | 20.6% |
| 26–35 years | 24.0% | 22.9% |
| 36–45 years | 23.0% | 25.2% |
| 46–55 years | 21.6% | 20.9% |
| 56–65 years | 11.0% | 10.3% |
| Gender | ||
| Male | 49.8% | 49.5% |
| Female | 50.2% | 50.5% |
| Smoking status | ||
| Smoker | 18.0% | 12.6%* |
| Non-smoker | 82.0% | 87.4% |
| Occupation | ||
| Professionals, managers, executives and businessmen/women | 21.7% | NA |
| White collar | 19.4% | – |
| Blue collar | 17.6% | – |
| Student/uniformed staff | 24.5% | – |
| Others (eg, housewife, retiree) | 16.8% | – |
| Education | ||
| At most primary | 12.0% | NA |
| At most secondary | 45.1% | – |
| A levels/polytechnic | 27.3% | – |
| Degree and above | 15.6% | – |
| Housing type | ||
| Public-built 1–4 rooms | 66.6% | 61.1% |
| Public-built >4 rooms | 16.6% | 21.7% |
| Private-built | 16.8% | 17.2% |