Table 1.
Average annual age-adjusted rates of acute respiratory distress syndrome–related mortality by demographic characteristic in the United States, 1999–2013
| Variable | No. Deaths (%) | Age-adjusted Rate Per 100,000 (95% CI) | Incident Rate Ratio (95% CI) | P Value |
|---|---|---|---|---|
| Sex | ||||
| Female | 76,029 (48.6) | 3.03 (3.01–3.05) | Referent | |
| Male | 80,328 (51.4) | 4.00 (3.97–4.03) | 1.33 (1.26–1.41) | <0.001 |
| Race* | ||||
| White | 130,216 (83.3) | 3.33 (3.31–3.35) | 1.06 (0.94–1.19) | 0.34 |
| Black or African American | 19,504 (12.5) | 4.07 (4.01–4.12) | 1.30 (1.14–1.48) | <0.001 |
| Asian or Pacific Islander | 4,895 (3.1) | 3.04 (2.95–3.13) | Referent | |
| Hispanic origin | ||||
| Hispanic or Latino | 13,101 (8.4) | 3.46 (3.39–3.52) | 1.05 (0.97–1.14) | 0.23 |
| Not Hispanic or Latino | 142,894 (91.4) | 3.43 (3.41–3.45) | Referent | |
| Urbanization (2006) | ||||
| Noncore (nonmetro) | 13,395 (8.6) | 3.79 (3.72–3.85) | 1.25 (1.16–1.36) | <0.001 |
| Micropolitan (nonmetro) | 19,829 (12.7) | 3.87 (3.81–3.92) | 1.28 (1.19–1.37) | <0.001 |
| Small metro | 16,328 (10.4) | 3.69 (3.63–3.74) | 1.23 (1.14–1.32) | <0.001 |
| Medium metro | 31,224 (20.0) | 3.38 (3.35–3.42) | 1.13 (1.07–1.20) | <0.001 |
| Large fringe metro | 32,131 (20.6) | 2.99 (2.96–3.02) | Referent | |
| Large central metro | 43,450 (27.8) | 3.49 (3.46–3.52) | 1.15 (1.09–1.21) | <0.001 |
| 10-yr age groups† | ||||
| 1–4 yr | 868 (0.5) | 0.37 (0.34–0.39) | 2.05 (1.50–2.81) | <0.001 |
| 5–14 yr | 1,095 (0.7) | 0.18 (0.17–0.19) | Referent | |
| 15–24 yr | 2,926 (1.8) | 0.46 (0.45–0.48) | 2.61 (2.05–3.34) | <0.001 |
| 25–34 yr | 4,838 (3.1) | 0.80 (0.78–0.82) | 4.49 (3.57–5.66) | <0.001 |
| 35–44 yr | 9,980 (6.4) | 1.55 (1.52–1.58) | 8.60 (6.91–10.72) | <0.001 |
| 45–54 yr | 20,177 (12.9) | 3.19 (3.14–3.23) | 18.04 (14.56–22.35) | <0.001 |
| 55–64 yr | 27,835 (17.8) | 5.86 (5.79–5.93) | 33.85 (27.36–41.87) | <0.001 |
| 65–74 yr | 34,569 (22.1) | 11.38 (11.26–11.50) | 64.86 (52.47–80.16) | <0.001 |
| 75–84 yr | 37,872 (24.2) | 19.51 (19.31–19.70) | 109.61 (88.71–135.44) | <0.001 |
| ≥85 yr | 16,197 (10.4) | 21.77 (21.43–22.10) | 124.66 (100.49–154.65) | <0.001 |
Definition of abbreviation: CI = confidence interval.
*
Race group “American Indian or Alaska Native” excluded because of small population size and large variance, making rate estimates unreliable.
†
Unable to calculate age-adjusted rates for age groups; therefore, these numbers represent crude rates and CIs.