Table 1 Baseline Characteristics of Kidney Transplant Recipients by Short Physical Performance Battery (SPPB) Impairment Status, Baltimore, Maryland, 2009–2016
Factors | Unimpaired (SPPB Score > 10) N = 315 | Impaired (SPPB Score ≤ 10) N = 280 | P Value |
|---|---|---|---|
Recipient factors | |||
Age (years) | 47.8 (14.1) | 56.3 (12.6) | < 0.001 |
Female | 39.4 | 36.1 | 0.41 |
Race | 0.01 | ||
White | 55.2 | 41.1 | |
Black | 36.2 | 50.4 | |
Other | 8.5 | 8.8 | |
Education | 0.06 | ||
High school (9–12) or less | 40.6 | 47.0 | |
2-year technical school | 5.5 | 9.7 | |
College/technical school | 31.5 | 23.9 | |
Post-college graduate degree | 22.4 | 19.4 | |
Body mass index (kg/m2) | 26.7 (5.1) | 28.1 (6.2) | < 0.01 |
Hepatitis C virus positive | 7.0 | 7.6 | 0.8 |
Preemptive transplant | 20.3 | 18.2 | 0.52 |
Years on dialysisa | 1.7 (0.1–3.9) | 2.4 (0.4–4.8) | 0.01 |
Previous KT | 20.3 | 15.4 | 0.12 |
Cause of end-stage renal disease | < 0.001 | ||
Hypertension | 30.8 | 34.3 | |
Diabetes | 10.5 | 21.1 | |
Glomerulonephritis | 2.9 | 5.4 | |
Other | 55.9 | 39.3 | |
Transplant factors | |||
0 Human leukoctye antigen mismatches | 15.1 (14.0) | 22.0 (15.5) | < 0.01 |
Cold ischemic time > 24 h | 32.7 | 51.43 | < 0.001 |
Live donor | 44.1 | 26.1 | < 0.001 |
Donor factors | |||
Age (years) | 37.7 (13.9) | 38.5 (15.4) | 0.36 |
Female sex | 49.5 | 43.9 | 0.17 |
Race | 0.42 | ||
White | 73.7 | 68.6 | |
Black | 17.5 | 23.2 | |
Other | 8.8 | 8.2 | |
Donation after cardiac death | 19.4 | 22.2 | 0.5 |
Expanded criteria donor | 4 | 11.1 | 0.01 |
Charlson Comorbidity Indexa | 0 (0–2) | 1 (0–3) | < 0.001 |