Table 1. Major risk factors for, and their impact on, morbidity and mortality worldwide in 2017 according to the Global Burden of Disease 2017 Risk Factor Collaborators. 5 .
| Risk factors | Deaths × 1,000 (95% CI) | DALYs × 1,000 (95% CI) | Global ranking |
|---|---|---|---|
| Diet (all causes) | 10,900 (10,100-11,700) | 255,000 (234,000-274,000) | 1 |
| Hypertension | 10,400 (9,400-11,500) | 218,000 (198,000-237,000) | 2 |
| Smoking (active + environmental + smokeless) | 8,100 (7,800-8,420) | 213,000 (201,000-227,000) | 3 |
| Elevated fasting blood glucose levels | 6,530 (5,230-8,230) | 171,000 (144,000-201,000) | 4 |
| Air pollution (total) | 4,900 (4,400-5,400) | 147,000 (132,000-162,000) | 5 |
| Environmental air pollution (PM2.5) | 2,940 (2,500-3,360) | 83,000 (71,400-94,300) | |
| Environmental air pollution (ozone) | 472 (177-768) | 7,370 (2,740-12,000) | |
| Household air pollution | 1,640 (1,400-1,930) | 59,500 (50,800-68,900) |
PM2.5: fine particulate matter < 2.5 µm in aerodynamic diameter; DALYs: disability-adjusted life years (the sum of the number of years of life lost due to premature death and the number of years lived with limitation/disability). In air pollution-related deaths and air pollution-related DALYs, the sum of the separate impacts of the pollutants is slightly higher than the sum of their combined impact.