Data sources for cost and quality-adjusted life year estimates
| Health event | Sources used for health cost calculation |
|---|---|
| All-cause mortality death | 32 26 |
| Coronary events (Bradford only) | 32–37 |
| Cases of childhood asthma | 32–35 37–41 |
| Term, low birthweight birth | 33 |
| Preterm birth | 33 32 42 43 |