Table 1.
Baseline characteristics among patients with incurable non-small cell lung cancer (2004-2011)
| N | % | |
|---|---|---|
| Demographic | ||
| Age at time of diagnosis (years) | ||
| 65-69 | 13,904 | 25% |
| 70-74 | 13,904 | 25% |
| 75-79 | 12,773 | 23% |
| >80 | 14,677 | 27% |
| Sex | ||
| Female | 25,966 | 47% |
| Male | 29,292 | 53% |
| Race | ||
| White | 47,359 | 86% |
| Black | 4993 | 9% |
| Asian/Pacific Islander | 2654 | 5% |
| Other | 252 | 1% |
| Marital status | ||
| Not married | 27,840 | 50% |
| Married | 27,418 | 50% |
| Diagnosis year | ||
| 2004-2005 | 15,165 | 27% |
| 2006-2007 | 14,413 | 26% |
| 2008-2009 | 13,234 | 24% |
| 2010-2011 | 12,446 | 23% |
| Median income quartile (percentile)* | ||
| ≤25th | 13,549 | 25% |
| 25th-50th | 13,547 | 25% |
| 50th-75th | 13,589 | 25% |
| >75th | 13,598 | 25% |
| Clinical and treatment | ||
| Modified Charlson comorbidity score† | ||
| 0 | 28,449 | 51% |
| 1 | 14,211 | 26% |
| 2 | 6129 | 11% |
| >3 | 6469 | 12% |
| Radiation treatment‡ | ||
| No | 33,506 | 62% |
| Yes | 20,435 | 38% |
| Chemotherapy‡ | ||
| No | 31,812 | 58% |
| Yes | 23,446 | 42% |
| Hospice services‡ | ||
| No | 28,926 | 52% |
| Yes | 26,332 | 48% |
| Regional and health care services | ||
| SEER region | ||
| Northeast | 10,300 | 19% |
| South | 15,798 | 28% |
| Midwest | 7544 | 14% |
| West | 21,616 | 39% |
| Living in urban area | ||
| No | 6537 | 12% |
| Yes | 48,721 | 88% |
| Radiation oncologist density§ | ||
| Lowest tertile | 18,230 | 33% |
| Middle tertile | 20,054 | 36% |
| Highest tertile | 16,968 | 31% |
SEER, Surveillance, Epidemiology and End Results.
*
By ZIP code.
†
Measured using the Klabunde modification.
‡
Within 1 year of diagnosis.
§
Number of radiation oncologists (per 100,000 population) practicing within each patient's county of residence, divided into top (>1.5), middle (1-1.5), and bottom (<1) tertiles.