Table 2.
Univariate Associations With Hospital and 6-Month Mortality
| Demographic or Characteristic | Hospital Mortality |
6-Month Mortality |
||
|---|---|---|---|---|
| OR | P | HR | P | |
| Age, years | ||||
| 65-69 | Reference | Reference | ||
| 70-74 | 1.04 | .165 | 1.06 | .001 |
| 75-79 | 1.10 | .003 | 1.15 | < .001 |
| 80-84 | 1.09 | .012 | 1.25 | < .001 |
| 85-89 | 1.29 | < .001 | 1.45 | < .001 |
| ≥ 90 | 1.11 | .223 | 1.50 | < .001 |
| Sex | ||||
| Women | Reference | Reference | ||
| Men | 1.17 | < .001 | 1.11 | < .001 |
| Race/ethnicity | ||||
| Non-Hispanic white | Reference | Reference | ||
| Black | 1.29 | < .001 | 1.16 | < .001 |
| Other | 1.27 | < .001 | 1.06 | .006 |
| Median annual income, thousands of dollars* | ||||
| < 15 | Reference | Reference | ||
| 15-29.9 | 0.91 | .010 | 1.10 | < .001 |
| 30-44.99 | 0.85 | < .001 | 1.05 | .008 |
| 45-59.99 | 0.85 | < .001 | 1.03 | .178 |
| 60-74.99 | 0.92 | .025 | 1.04 | .081 |
| ≥ 75 | 0.87 | .001 | 0.99 | .625 |
| Comorbidity† | ||||
| 0 | Reference | Reference | ||
| 1 | 1.01 | .846 | 1.02 | .413 |
| 2 | 1.03 | .553 | 1.10 | < .001 |
| ≥ 3 | 1.06 | .156 | 1.14 | < .001 |
| Lung cancer histology | ||||
| NSCLC | Reference | Reference | ||
| SCLC | 1.44 | < .001 | 1.23 | < .001 |
| Other | 1.25 | < .001 | 1.16 | < .001 |
| Stage at diagnosis | ||||
| Local | Reference | Reference | ||
| Regional | 1.49 | < .001 | 1.53 | < .001 |
| Distant | 1.99 | < .001 | 2.51 | < .001 |
| Unknown | 1.84 | < .001 | 1.95 | < .001 |
| Time from diagnosis to admission, days | ||||
| < 19 | Reference | Reference | ||
| 19-75 | 1.27 | < .001 | 1.03 | .053 |
| 76-328 | 1.33 | < .001 | 1.00 | .820 |
| ≥ 329 | 0.96 | .166 | 0.69 | < .001 |
| Teaching status | ||||
| Teaching hospital | Reference | Reference | ||
| Nonteaching hospital | 0.88 | < .001 | 1.02 | .198 |
| Number of beds | ||||
| < 250 | Reference | Reference | ||
| 251-449 | 1.02 | .398 | 0.97 | .006 |
| ≥ 450 | 1.11 | .001 | 0.90 | < .001 |
| Mechanical ventilation | ||||
| No | Reference | Reference | ||
| Yes | 8.65 | < .001 | 2.49 | < .001 |
| Type of ICU | ||||
| Medical | Reference | Reference | ||
| Cardiac | 1.19 | < .001 | 1.04 | .023 |
| Intermediate | 0.29 | < .001 | 0.74 | < .001 |
| Other‡ | 0.82 | .001 | 0.81 | < .001 |
Abbreviations: HR, hazard ratio; ICU, intensive care unit; NSCLC, non–small-cell lung cancer; OR, odds ratio; SCLC, small-cell lung cancer.
*
According to zip code data supplied by the Centers for Medicare and Medicaid Services.
†
Deyo-Charlson for inpatient codes.
‡
Surgical, other, and unknown.