Table 2.
Patient demographics comparing partial nephrectomy and radical nephrectomy over the 4 year study period
| Demographics | Partial Nephrectomy | Radical Nephrectomy | p-value |
|---|---|---|---|
| N = 61693 | N = 130078 | ||
| Mean Age ± SE | 58.3 ± 0.2 | 60.3 ± 0.2 | <0.0001 |
| Age Group | <0.0001 | ||
| <60 | 31251(50.7) | 59090(45.4) | |
| ≥60 | 30441(49.3) | 70988(54.6) | |
| Gender | 0.8440 | ||
| Male | 35572(57.9) | 74922(57.7) | |
| Female | 25917(42.1) | 54832(42.3 | |
| Race | 0.6064 | ||
| Caucasian | 40245(65.2) | 83623(64.3) | |
| African-American | 5249(8.5) | 11570(8.9) | |
| Hispanic | 4029(6.5) | 9705(7.5) | |
| Asian | 1007(1.6) | 2425(1.9) | |
| Other | 11162(18.1) | 22755(17.5) | |
| Income (Zip Code) | <0.0001 | ||
| <$50,000 | 27052(44.9) | 64633(50.6) | |
| ≥$50,000 | 33242(55.1) | 62976(49.4) | |
| Hypertension | 35436(57.4) | 80297(61.7) | <0.0001 |
| Diabetes | 13701(22.2) | 29806(22.9) | 0.1767 |
| Obesity | 8673(14.1) | 15687(12.1) | <0.0001 |
| Chronic Kidney Disease | 4683(7.6) | 21060(16.2) | <0.0001 |
| CKD Stages | <0.0001 | ||
| Stage 1 | 40(0.9) | 60(0.3) | 0.6139 |
| Stage 2 | 206(4.4) | 586(2.8) | 0.0421 |
| Stage 3 | 1246(26.6) | 3144(14.9) | 0.0004 |
| Stage 4 | 350(7.5) | 1075(5.1) | 0.0009 |
| Stage 5 / ESRD | 40(0.8) | 306(1.5) | <0.0001 |
| Stage unspecified | 2800(59.8) | 15890(75.4) | <0.0001 |
| Charlson Comorbidity Index | <0.0001 | ||
| 0 | 37308(60.5) | 67959(52.2) | |
| 1 | 15728(25.5) | 29566(22.7) | |
| 2 | 4323(7.0) | 10636(8.2) | |
| 3+ | 4334(7.0) | 21916(16.8) | |
| Insurance | <0.0001 | ||
| Private | 34022(55.3) | 57101(44.0) | |
| Medicare | 20435(33.2) | 55609(42.8) | |
| Medicaid | 3575(5.8) | 8684(6.7) | |
| Other | 3531(5.7) | 8387(6.5) | |
| Hospital Bed Number | 0.1792 | ||
| Small | 5428(9.0) | 11678(9.2) | |
| Medium | 11508(19.1) | 28038(22.0) | |
| Large | 43265(71.9) | 87867(68.8) | |
| Hospital Nx Volume/year | <0.0001 | ||
| <25 | 1560(70.4) | 6663(81.5) | |
| 25-49 | 361(16.3) | 942(11.5) | |
| 50-99 | 184(8.3) | 424(5.2) | |
| 100+ | 112(5.1) | 150(1.8) | |
| Hospital Location | <0.0001 | ||
| Rural | 2333(3.9) | 8371(6.6) | |
| Urban | 57868(96.1) | 119212(93.4) | |
| Hospital Region | 0.0009 | ||
| Northeast | 14324(23.7) | 22913(17.9) | |
| Midwest | 16723(27.6) | 33770(26.3) | |
| South | 17683(29.2) | 43656(34.1) | |
| West | 11795(19.5) | 27828(21.7) | |
| Teaching | <0.0001 | ||
| Non-teaching | 15401(25.6) | 47154(37.0) | |
| Teaching | 44800(74.4) | 82429(63.0) | |
| Median Length of Stay (IQR), days | 2.9(1.9-4.2) | 3.4(2.2-5.2) | <0.0001 |
| Median Total Charges for Stay (IQR), $ | 36832(26298–53058) | 37359(25669–59124) | <0.001 |
| Died during hospitalization | 93(0.2) | 1384(1.1) | <0.0001 |