Table 1.
Baseline characteristics of Medicare patients starting PD, by first clinical outcome
| All (N=29,573) |
PD Outcome | |||||
|---|---|---|---|---|---|---|
| HD transfer (n=12,175) |
Death (n=7,646) |
Transplant (n=5,057) |
Other (n=4,695) |
P | ||
| Age years, mean (std) | 58.0 (15.2) | 57.5(14.7) | 66.6(12.9) | 48.7(13.5) | 55.4 (14.3) | <0.001 |
| Female sex, % | 43.9 | 42.9 | 42.5 | 43.2 | 49.3 | 0.001 |
| Race, % | <0.001 | |||||
| Causcasian | 70.7 | 67.5 | 79.5 | 72.4 | 62.6 | |
| African-American | 21.9 | 26.6 | 14.6 | 18.0 | 26.0 | |
| Asian | 5.2 | 3.7 | 4.0 | 7.6 | 8.7 | |
| Other | 2.2 | 2.2 | 1.9 | 2.0 | 2.7 | |
| eGFR, mean (std) | 12.2 (4.9) | 11.9 (4.8) | 13.0 (5.1) | 11.3 (4.6) | 12.4 (5.1) | <0.001 |
| eGFR>15ml/min/1.73 m2, % | 25.2 | 23.1 | 30.9 | 19.4 | 27.9 | <0.001 |
| BMI, kg/m2 mean (std) | 29.3 (7.1) | 30.2 (7.4) | 28.8 (7.2) | 27.8 (6.1) | 29.4 (7.1) | <0.001 |
| BMI > 30 kg/m2, % | 39.2 | 44.9 | 36.1 | 30.2 | 39.0 | <0.001 |
| Albumin (g/dL) mean (std) | 3.59 (0.64) | 3.53 (0.64) | 3.48 (0.62) | 3.76 (0.62) | 3.72 (0.62) | <0.001 |
| Albumin, % | <0.001 | |||||
| >4.0 g/dL | 19.0 | 16.5 | 13.6 | 27.5 | 25.4 | |
| 3.5–4.0 g/dL | 30.6 | 30.1 | 30.9 | 30.3 | 31.8 | |
| < 3.5 g/dL | 29.1 | 31.9 | 34.2 | 21.0 | 21.7 | |
| Missing | 21.3 | 21.4 | 21.3 | 21.3 | 21.1 | |
| Primary ESRD Diagnosis, % | <0.001 | |||||
| Diabetes | 42.6 | 47.1 | 49.5 | 28.3 | 35.0 | |
| Hypertension | 25.9 | 25.9 | 29.1 | 18.1 | 28.9 | |
| All others | 31.5 | 27.0 | 21.4 | 53.6 | 30.1 | |
| Employed, % | 36.0 | 33.4 | 20.2 | 61.2 | 41.3 | <0.001 |
Abbreviations: eGFR, estimated glomerular filtration rate; BMI, body mass index; ESRD, end-stage renal disease; PD, peritoneal dialysis; HD, hemodialysis.
*
Other: censored due to recovery of kidney function, loss to follow-up, or end of observation period