Table 2. Cohort Characteristics.
| Characteristic | Data |
|---|---|
| Year | |
| 2008 | 56,238 (26.2) |
| 2009 | 55,782 (25.9) |
| 2010 | 51,886 (24.1) |
| 2011 | 51,135 (23.8) |
| State | |
| California | 88,600 (41.2) |
| Florida | 67,041 (31.2) |
| New York | 59,400 (27.6) |
| Age, y, median (IQR) | 66 (53–76) |
| Sex | |
| Female | 115,163 (53.6) |
| Race | |
| White | 171,743 (79.9) |
| Black | 19,225 (8.9) |
| Other | 24,073 (11.2) |
| Ethnicity | |
| Hispanic | 27,182 (12.6) |
| Non-Hispanic | 183,632 (85.4) |
| Unknown | 4,227 (2.0) |
| Median income quartile | |
| 1 (low) | 52,119 (24.2) |
| 2 | 55,784 (25.9) |
| 3 | 52,646 (24.5) |
| 4 (high) | 54,492 (25.3) |
| Principal payer | |
| Medicare | 106,968 (49.7) |
| Medicaid | 13,320 (6.2) |
| Commercial | 82,242 (38.2) |
| Self | 6,337 (3.0) |
| Other | 6,174 (2.9) |
| Comorbidities | |
| 0 | 33,781 (15.7) |
| 1 | 44,578 (20.7) |
| 2+ | 136,682 (63.6) |
| Colon cancer | 67,414 (31.4) |
| Rectal cancer | 5,687 (2.6) |
| IBD | 12,047 (5.6) |
| Diverticulitis | 72,411 (33.7) |
| Chronic steroid use | 2,623 (1.2) |
| Bed size | |
| Small | 9,699 (4.5) |
| Medium | 90,041 (41.9) |
| Large | 115,301 (53.6) |
| Owner and setting | |
| Investor owned | 30,655 (14.3) |
| Rural, not for profit | 6,983 (3.3) |
| Urban, not for profit | 177,403 (82.5) |
| Emergency admission | 81,124 (37.7) |
| Total | 215,041 (100.0) |
Data are presented as n (%), unless otherwise indicated.
IBD, inflammatory bowel disease; IQR, interquartile range.