Table 1. Baseline Characteristics of Patients With Low-Grade Stage Ta Non–Muscle-Invasive Bladder Cancer.
| Characteristic | Patients, No. (%) |
|---|---|
| Total patients, No. | 13 054 |
| Age at diagnosis, median (IQR), y | 76 (71-81) |
| Sex | |
| Female | 3458 (26.5) |
| Male | 9596 (73.5) |
| Race and ethnicity | |
| Black | 403 (3.1) |
| Hispanic | 120 (0.9) |
| White | 12 123 (92.9) |
| Othera | 408 (3.1) |
| Marital status | |
| Single | 1620 (12.4) |
| Married | 7979 (61.1) |
| Unknown | 3455 (26.5) |
| Census region | |
| West | 4767 (36.5) |
| Midwest | 3373 (25.8) |
| South | 1464 (11.2) |
| Northeast | 3450 (26.4) |
| Median household income, $ | |
| ≤42 992 | 3389 (26.0) |
| 42 993-56 188 | 3182 (24.4) |
| 56 189-73 827 | 3241 (24.8) |
| ≥73 828 | 3242 (24.8) |
| High school educational level, %b | |
| ≤20.58 | 3053 (23.4) |
| 20.59-27.36 | 2995 (22.9) |
| 27.37-34.83 | 3177 (24.3) |
| ≥34.84 | 3829 (29.3) |
| Charlson Comorbidity Index score | |
| 0 | 5814 (44.5) |
| 1 | 3478 (26.6) |
| 2 | 1750 (13.4) |
| ≥3 | 2012 (15.4) |
| Year of diagnosis | |
| 2004 | 1859 (14.2) |
| 2005 | 1618 (12.4) |
| 2006 | 1563 (12.0) |
| 2007 | 1485 (11.4) |
| 2008 | 1441 (11.0) |
| 2009 | 1251 (9.6) |
| 2010 | 925 (7.1) |
| 2011 | 890 (6.8) |
| 2012 | 981 (7.5) |
| 2013 | 1041 (8.0) |
a
Further details in this category were not available in the data source.
b
Educational level was based on the proportion of residents within a patient’s zip code who were older than 25 years with at least a high school diploma.