Changes in average population-weighted annual exposure to air pollution (PM10) and associated impacts as YLG according to SEP in subjects living along HTR using SEP-specific CRFs
| Population | Mortality rates per 100 000 population | Pre–post difference optimistic scenario (PM10) | Pre–post difference pessimistic scenario (PM10) | YLG per 100 000 during 15 years optimistic scenario | YLG per 100 000 during 15 years pessimistic scenario | |
| By SEP | ||||||
| 1 (high) | 57 733 | 854 | −0.20 | −0.17 | 191 | 163 |
| 2 | 61 174 | 933 | −0.17 | −0.14 | 262 | 216 |
| 3 | 63 325 | 901 | −0.10 | −0.08 | 156 | 125 |
| 4 | 45 180 | 896 | −0.10 | −0.08 | 151 | 122 |
| 5 (low) | 37 110 | 1029 | −0.05 | −0.04 | 94 | 75 |
Baseline mortality rates standardised for age using the total Rome population of 2005. Pre–post differences of 2005 based on population-weighted average concentrations of address data of 264 522 subjects. We have assumed that the difference results in a reduction in hazards for the years 2005 till 2019 based on different CRFs for the different SEP groups. These CRFs were applied for people aged ≥30 years. CRF of 1.05 for the highest SEP group, 1.08 for the three middle groups, and a CRF of 1.10 for the lowest group. HTR: >10 000 vehicles circulating per day.
CRF, concentration–response function; HTR, high-traffic road; SEP, socioeconomic position; YLG, years of life gained.