Table 1.
Characteristics of study population in NC, 2002–2013
| Characteristics | Total (N=775,338) |
|---|---|
| Cause of death | |
| Total | 775,338 |
| Cardiovascular | 261,663 |
| Respiratory | 86,017 |
| Sex (%) | |
| Male | 369,883 (47.7) |
| Female | 405,441 (52.3) |
| Missing | 14 (0.0) |
| Race/ethnicity | |
| Non-Hispanic White | 602,125 (77.7) |
| Non-Hispanic Black | 158,449 (20.4) |
| Hispanic | 5,307 (0.7) |
| Non-Hispanic Asian | 3,239 (0.4) |
| Non-Hispanic Other | 6,096 (0.8) |
| Missing | 122 (0.0) |
| Age at death | |
| <65 years | 192,631 (24.8) |
| ≥65 years | 582,707 (75.2) |
| Education | |
| <12 years | 303,198 (39.1) |
| High school graduate | 249,042 (32.1) |
| 1–4 years of College | 175,497 (22.6) |
| 5 or more years of college | 36,141 (4.7) |
| Unknown | 11,460 (1.5) |
| Marital status | |
| Never married | 73,592 (9.5) |
| Married | 308,906 (39.8) |
| Widowed | 299,738 (38.7) |
| Divorced | 91,856 (11.9) |
| Unknown | 1,246 (0.2) |
| Community-level factors | |
| Census-tract median income (mean±SD) | $45,116±$18,015 |
| County-level urbanicity | |
| Metropolitan (urban area ≥50,000 people) | 659,332 (85.0) |
| Micropolitan (urban cluster of 10,000–49,999) | 113,692 (14.7) |
| Rural (urban cluster of <10,000) | 2,314 (0.3) |
| Average NDVI | 0.61±0.05 |
| Distance to water bodies (km) | 12.6±10.3 |
| Air Pollution Estimates | |
| Downscaler PM2.5 (μg/m3) | 11.4±5.7 |
| Downscaler O3 (ppb) | 41.7±13.7 |
| Monitor-based PM2.5 (μg/m3) | 11.5±6.1 |
| Monitor-based O3 (ppb) | 31.3±11.1 |
| Weather variables | |
| Temperature (°C) | 14.9±8.7 |
| Dew point temperature (°C) | 8.2±9.8 |