Table 3:
Risk of death associated with ARDS, stratified by age group
| Age Group | ARDS deaths (%) | Non-ARDS deaths (%) | Unadjusted RR | 95% CI | Adjusted RRa | 95% CI |
|---|---|---|---|---|---|---|
| Entire Cohort | 9045 (22.8) | 100699 (8.0) | 2.84 | 2.66 – 3.03 | 1.51 | 1.42 – 1.62 |
| ≤4 years | 169 (25.3) | 2209 (5.3) | 4.78 | 3.86 – 5.93 | 2.06 | 1.72 – 2.70 |
| 5–12 years | 89 (15.8) | 1193 (3.0) | 5.34 | 4.20 – 6.79 | 1.92 | 1.44 – 2.57 |
| 13–17 years | 265 (19.3) | 2913 (4.6) | 4.21 | 3.74 – 4.74 | 1.30 | 1.15 – 1.47 |
| 18–34 years | 1809 (17.1) | 18536 (5.7) | 2.97 | 2.70 – 3.27 | 1.30 | 1.20 – 1.41 |
| 35–49 years | 1316 (17.3) | 12668 (6.0) | 2.91 | 2.64 – 3.19 | 1.35 | 1.22 – 1.50 |
| 50–64 years | 1907 (21.5) | 19284 (8.0) | 2.70 | 2.49 – 2.93 | 1.47 | 1.36 – 1.60 |
| 65–79 years | 1973 (30.6) | 22353 (11.7) | 2.62 | 2.47 – 2.79 | 1.67 | 1.56 – 1.80 |
| ≥80 years | 1517 (43.9) | 21543 (15.8) | 2.78 | 2.62 – 2.96 | 1.87 | 1.73 – 2.03 |
ARDS, acute respiratory distress syndrome; RR, relative risk; CI, confidence interval
a
Adjusted relative risks are adjusted for modified Charlson Comorbidity Index, injury mechanism, Injury Severity Score, admission heart rate, admission hypotension, admission total Glasgow Coma Scale score, year, and transfer status