Total Hip Arthroplasty
N = 291

Total Knee Arthroplasty
N = 515

P-Value

Median Age (IQR)¹

55 (49-60)

62 (56-69)

< 0.0001

Gender²

Female

161 (55.3%)

354 (68.7%)

0.0001

Male

130 (44.7%)

161 (31.3%)

Body Mass Index³

Underweight

5 (1.7%)

0 (0.0%)

< 0.0001

Normal

56 (19.2%)

44 (8.5%)

Overweight

87 (29.9%)

110 (21.4%)

Obese

143 (49.1%)

361 (70.1%)

Avascular Necrosis²

No

226 (77.7%)

515 (100.0%)

< 0.0001

Yes

65 (22.3%)

0 (0.0%)

Positive Urinalysis²

No

241 (82.8%)

424 (82.3%)

0.861

Yes

50 (17.2%)

91 (17.7%)

Periprosthetic joint infection²

No

281 (96.6%)

508 (98.6%)

0.0487

Yes

10 (3.4%)

7 (1.4%)

Had Prior Surgery²

No

257 (88.6%)

401 (77.9%)

0.0001

Yes

33 (11.4%)

114 (22.1%)

Smoking Status²

Former

90 (31.0%)

137 (26.6%)

< 0.0001

Never

130 (44.8%)

319 (61.9%)

Current

70 (24.1%)

59 (11.5%)

Diabetes Mellitus²

No

240 (82.5%)

371 (72.0%)

0.0009

Yes

51 (17.5%)

144 (28.0%)

Rheumatoid Arthritis²

No

278 (95.5%)

501 (97.3%)

0.1851

Yes

13 (4.5%)

14 (2.7%)

HIV²

No

279 (95.9%)

503 (97.7%)

0.1502

Yes

12 (4.1%)

12 (2.3%)

Renal Disease²

No

264 (90.7%)

459 (89.1%)

0.4741

Yes

27 (9.3%)

56 (10.9%)

Liver Disease²

No

263 (90.4%)

470 (91.3%)

0.6744

Yes

28 (9.6%)

45 (8.7%)

Congestive Heart Failure²

No

270 (92.8%)

494 (95.9%)

0.0541

Yes

21 (7.2%)

21 (4.1%)

Coagulation Condition²

No

271 (93.1%)

486 (94.4%)

0.2486

Yes

20 (6.9%)

29 (5.6%)

Positive CRP²

Negative (lab of 0.3 or less)

132 (45.4%)

270 (52.4%)

0.054

Positive (lab greater than 0.3)

159 (54.6%)

245 (47.6%)

Positive ESR²

Negative (lab of 30 or less)

240 (82.5%)

427 (82.9%)

0.8743

Positive (lab greater than 30)

51 (17.5%)

88 (17.1%)