Table 1.
Demographic and potential predictors of the development and validation cohorts and unadjusted mortality odds ratios in a study assessing the feasibility of creating an index to risk stratify older adults for in-hospital mortality after intubation.
| Development cohort (n =10,789) | Validation cohort (n = 11,585) | |||
|---|---|---|---|---|
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| Category | Weighted % | Unadjusted OR (95% CI) | Weighted % | Unadjusted OR (95% CI) |
| Age | ||||
| 75 – 79 Years | 34% | Reference | 34% | Reference |
| 80 – 84 Years | 31% | 1.28 (1.16–1.41) | 30% | 1.32 (1.20–1.45) |
| 85 – 89 Years | 23% | 1.48 (1.33–1.64) | 23% | 1.44 (1.30–1.59) |
| >= 90 Years | 12% | 1.74 (1.54–1.98) | 13% | 2.05 (1.81–2.31) |
| Sex | ||||
| Men | 46% | Reference | 45% | Reference |
| Women | 54% | 1.01 (0.94–1.10) | 51% | 0.99 (0.92–1.07) |
| Race | ||||
| White | 65% | Reference | 66% | Reference |
| Black | 21% | 0.71 (0.65–0.79) | 22% | 0.81 (0.70–0.92) |
| Others | 14% | 1.00 (0.92–1.08) | 12% | 1.06 (0.96–1.18) |
| Comorbid conditions | ||||
| History of myocardial infarction | 14% | 1.19 (1.07–1.32) | 14% | 1.26 (1.14–1.40) |
| Congestive heart failure | 42% | 0.71 (0.65–0.77) | 42% | 0.69 (0.64–0.74) |
| Peripheral vascular disease | 10% | 1.15 (1.01–1.32) | 10% | 1.23 (1.09–1.40) |
| Dementia | 3% | 0.71 (0.55–0.90) | 3% | 0.72 (0.57–0.91) |
| Cerebrovascular accident | 21% | 1.80 (1.64–1.97) | 22% | 1.77 (1.62–1.93) |
| Chronic obstructive lung disease | 33% | 0.63 (0.58–0.68) | 33% | 0.65 (0.60–0.70) |
| Connective tissue disease | 3% | 1.00 (0.79–1.27) | 3% | 1.18 (0.95–1.45) |
| Diabetes | 34% | 0.85 (0.78–0.92) | 33% | 0.82 (0.75–0.88) |
| Chronic kidney disease | 31% | 0.88 (0.81–0.96) | 30% | 0.86 (0.79–0.94) |
| Hemiplegia/paraplegia | 6% | 1.21 (1.10–1.34) | 6% | 1.31 (1.14–1.51) |
| Moderate liver disease | 1% | 1.68 (1.15–2.45) | 1% | 1.49 (1.04–2.14) |
| Metastatic cancer | 4% | 2.10 (1.68–2.55) | 3% | 1.71 (1.40–2.10) |
| Origin of ED arrival | ||||
| Home | 75% | Reference | 74% | Reference |
| Nursing home | 7% | 0.94 (0.84–1.05) | 7% | 0.84 (0.72–1.44) |
| Hospice | 0.02% | 0.92 (0.17–5.09) | 0.03% | 6.18 (0.63–60.53) |
| Other hospitals | 24% | 1.10 (0.87–1.40) | 24% | 1.12 (1.03–1.22) |
| Admitting diagnosis | ||||
| Sepsis | 11% | 1.38 (1.21–1.56) | 11% | 1.41 (1.25–1.60) |
| Gastrointestinal bleed | 1% | 1.15 (0.91–1.44) | 1% | 0.83 (0.58–1.18) |
| Congestive heart failure | 1% | 0.78 (0.55–1.10) | 2% | 0.52 (0.36–0.74) |
| Pneumonia | 4% | 0.83 (0.71–0.97) | 3% | 1.08 (0.88–1.33) |
| Respiratory failure | 31% | 0.56 (0.52–0.59) | 32% | 0.52 (0.48–0.57) |
| Altered mental status | 15% | 0.72 (0.67–0.78) | 15% | 0.71 (0.64–0.79) |
| Cerebrovascular accident/intracranial hemorrhage | 10% | 2.4 (2.17–2.58) | 10% | 2.34 (2.05–2.66) |
OR, odds ratio; CI, confidence interval.