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Table 1 Patient demographics of partial nephrectomy before and after the publication of the T1a renal AUA guidelines recommendations

From: Evaluation of national trends in the utilization of partial nephrectomy in relation to the publication of the American Urologic Association guidelines for the management of clinical T1 renal masses

Demographic

Before Guidelines

After Guidelines

p-value

N = 27357 (PN)

N = 34336 (PN)

N = 94457 (PN + RN)

N = 97314 (PN + RN)

Mean Age ± SE

58.2 ± 0.2

58.4 ± 0.2

0.3888

Age Group

  

0.3325

  <60

14024(51.3) /44364

17228(50.2) /45978

 

  ≥60

13333(48.7) /50093

17108(49.8) /51336

 

Gender

  

0.1857

  Male

15558(57.1) /53780

20015(58.4) /56715

 

  Female

11672(42.9) /40344

14245(41.6) /40406

 

Race

  

<0.0001

  Caucasian

16714(61.1) /57803

23530(68.5) /66065

 

  African-American

2059(7.5) /7244

3190(9.3) /9575

 

  Hispanic

1540(5.6) /6125

2489(7.3) /7609

 

  Asian

440(1.6) /1681

567(1.7) /1752

 

  Other

6604(24.1) /21604

4558(13.3) 12313

 

Income (Zip Code)

  

0.8705

  <$50,000

12000(45.1) /44943

15053(44.7) /46743

 

  ≥$50,000

14609(54.9) /47486

18634(55.3) /48732

 

Hypertension

15427(43.6) /56001

20009(58.3) /59732

0.0842

Diabetes

5702(20.8) /20288

7998(23.3) /23219

0.0056

Obesity

3493(12.8) /10846

5180(15.1) /13513

0.0114

Chronic Kidney Disease

1986(7.3) /12058

2697(7.9) /13685

0.2997

CKD Stages

  

0.6560

  Stage1

10(0.5) /25

30(1.1) /75

0.2353

  Stage2

83(4.2) /353

124(4.6) /439

0.5822

  Stage3

480(24.2) /1770

766(28.4) /2620

0.1144

  Stage4

146(7.3) /606

204(7.6) /819

0.6660

  Stage5/ESRD

15(0.8) /182

24(0.9) /163

0.7484

  Stage unspecified

1252(63.0) /9121

1548(57.4) /9568

0.9392

Charlson Comorbidity Index

  

0.3327

  0

16780(61.3) /52204

20528(59.8) /53063

 

  1

6763(24.7) /21901

8965(26.1) /23394

 

  2

1948(7.1) /7365

2375(6.9) /7594

 

  3+

1866(6.8) /12988

2468(7.2) /13262

 

Insurance

  

0.8561

  Private

15224(55.8) /45206

18797(54.9) /45917

 

  Medicare

9018(33.0) /37728

11416(33.3) /38316

 

  Medicaid

1561(5.7) /5794

2014(5.9) /6464

 

  Other

1500(5.5) /5565

2031(5.9) /6352

 

Hospital Bed Number

  

0.3397

  Small

2350(8.8) /8298

3077(9.2) /8808

 

  Medium

5742(21.5) /20598

5766(17.2) /18948

 

  Large

18569(69.6) /63430

24696(73.6) /67702

 

Hospital Nephrectomy Volume/year

  

<0.0001

  <25

737(82.6) /4159

824(62.2) /4065

 

  25-49

88(9.9) /417

273(20.6) /886

 

  50-99

43(4.8) /189

140(10.6) /418

 

  100+

24(2.7) /73

88(6.6) /190

 

Hospital Location

  

0.4592

  Rural

1128(4.2) /5236

1205(3.6) /5467

 

  Urban

25534(95.8) /87089

32334(96.4) /89992

 

Hospital Region

  

0.8938

  Northeast

6041(22.6) /17794

8283(24.5) /19444

 

  Midwest

7309(27.3) /24490

9413(27.9) /26002

 

  South

7699(28.8) /29451

9983(29.6) /31888

 

  West

5692(21.3) /20876

6104(18.1) /18747

 

Teaching

  

0.4759

  Non-teaching

6482(24.3) /31172

8920(26.6) /31383

 

  Teaching

20180(75.7) /61153

24619(73.4) /64075

 

Median Length of Stay (IQR), days

3.1(2.1-4.4)

2.7(1.7-3.9)

<0.0001

Median Total Charges for Stay (IQR), $

35223(24931–49394)

38381(27440–55923)

<0.0001

Died during hospitalization

45(0.2) /703

50(0.1) /774

0.8318