Table 1.
Total hip arthroplasty demographics
| THA | rTHA | |
|---|---|---|
| Discharges (n = 2,838,742) | Discharges (n = 400,974) | |
| Age of Patient (Years) | ||
| Mean (Standard Error) | 65.98 (0.05) | 68.54 (0.08) |
| Biological Sex of Patient | ||
| Male | 1,239,107 (43.65%) | 172,950 (43.14%) |
| Female | 1,599,635 (56.35%) | 228,024 (56.87%) |
| Expected Primary Payor | ||
| Medicare | 1,519,119 (53.51%) | 262,084 (65.36%) |
| Medicaid | 95,921 (3.38%) | 15,860 (3.96%) |
| Private | 1,124,965 (39.63%) | 108,030 (26.94%) |
| Self-Pay | 20,617 (0.73%) | 2,824 (0.70%) |
| No Charge | 3,707 (0.13%) | 480 (0.12%) |
| Other Insurance | 74,412 (2.62%) | 11,697 (2.92%) |
| Race of Patient | ||
| Non-Hispanic White | 2,123,402 (74.80%) | 298,324 (74.40%) |
| Non-Hispanic Black | 171,191 (6.03%) | 22,680 (5.66%) |
| Hispanic | 76,260 (2.69%) | 12,396 (3.09%) |
| Other Race | 467,889 (16.48%) | 67,574 (16.85%) |
| Calendar Year of Discharge | ||
| 2006 | 214,451 (7.55%) | 35,034 (8.74%) |
| 2007 | 237,237 (8.36%) | 37,075 (9.25%) |
| 2008 | 257,853 (9.08%) | 39,243 (9.79%) |
| 2009 | 266,904 (9.40%) | 37,808 (9.43%) |
| 2010 | 283,275 (9.98%) | 41,194 (10.27%) |
| 2011 | 285,683 (10.06%) | 44,980 (11.22%) |
| 2012 | 312,910 (11.02%) | 43,230 (10.78%) |
| 2013 | 335,900 (11.83%) | 45,110 (11.25%) |
| 2014 | 363,575 (12.81%) | 45,030 (11.23%) |
| 2015 | 281,000 (9.90%) | 32,270 (8.05%) |
| Bedsize of Hospital | ||
| Small | 542,124 (19.10%) | 65,044 (16.22%) |
| Medium | 740,181 (26.07%) | 95,687 (23.86%) |
| Large | 1,547,591 (54.52%) | 238,109 (59.38%) |
| Unknown | 8,846 (0.31%) | 2,134 (0.53%) |
| Location/Teaching Status of Hospital | ||
| Rural | 277,772 (9.79%) | 28,180 (7.03%) |
| Urban Nonteaching | 1,153,501 (40.63%) | 143,218 (35.72%) |
| Urban Teaching | 1,398,623 (49.27%) | 227,442 (56.72%) |
| Unknown | 8,846 (0.31%) | 2,134 (0.53%) |
| Region of Hospital | ||
| Northeast | 566,838 (19.97%) | 72,122 (17.99%) |
| Midwest | 746,641 (26.30%) | 98,410 (24.54%) |
| South | 939,107 (33.08%) | 144,753 (36.10%) |
| West | 586,156 (20.65%) | 85,688 (21.37%) |
| Elective Admission | ||
| Non-Elective | n/a | 114,244 (28.49%) |
| Elective | n/a | 285,841 (71.29%) |
| Unknown | n/a | 888 (0.22%) |
A comprehensive list of demographic data collected from the NIS database of patients undergoing THA and rTHA from 2006 to the third quarter of 2015