Table 2 Patient demographics comparing partial nephrectomy and radical nephrectomy over the 4Â 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 | Â | Â | <0.0001 |
  <60 | 31251(50.7) | 59090(45.4) |  |
  ≥60 | 30441(49.3) | 70988(54.6) |  |
Gender | Â | Â | 0.8440 |
  Male | 35572(57.9) | 74922(57.7) |  |
  Female | 25917(42.1) | 54832(42.3 |  |
Race | Â | Â | 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) | Â | Â | <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 | Â | Â | <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 | Â | Â | <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 | Â | Â | <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 | Â | Â | 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 | Â | Â | <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 | Â | Â | <0.0001 |
  Rural | 2333(3.9) | 8371(6.6) |  |
  Urban | 57868(96.1) | 119212(93.4) |  |
Hospital Region | Â | Â | 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 | Â | Â | <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 |