Environmental variables and number of deaths in Greater Stockholm Country, 1990–2002
| Environmental variables | June to August | December to February |
| Temperature (°C) | Missing: 8% | Missing: 6% |
| Daily mean±SD | 16.9±3.2 | −0.43±4.2 |
| Minimum, 1990–2002 | 5.8 | −18.5 |
| Maximum, 1990–2002 | 33.5 | 12.9 |
| Apparent temperature (°C) | Missing: 9% | Missing: 8% |
| Mean±SD | 16.1±4.1 | −2.6±3.6 |
| Minimum, 1990–2002 | 3.2 | −17.0 |
| Maximum, 1990–2002 | 34.6 | 10.8 |
| NOx (24 h, μg/m3) | Missing: 32% | Missing: 29% |
| Mean±SD | 23.0±12.0 | 40.4±30.5 |
| Ozone (8 h, μg/m3) | Missing: 7% | Missing: 31% |
| Mean±SD | 57.2±15.2 | 34.2±14.1 |
| Total no of deaths over the study period in age strata (excluding external causes) | ||
| 0–44 | 1512 | 1500 |
| 45–64 | 5551 | 5921 |
| 65–79 | 15258 | 17117 |
| 80+ | 22417 | 26897 |