Table 2.
Study population
| Population analyzed (n = 3369) |
Excluded due to missing dataa (n = 502) | |
|---|---|---|
| Age (years) | 62.1 + 13.9 | 61.3 + 13.4 |
| Female | 1547 (45.9) | 242 (48.2) |
| Race | ||
| Black | 1294 (38.4) | 216 (48.0) |
| White | 1917 (56.9) | 212 (47.1) |
| Other | 158 (4.7) | 22 (4.9) |
| Hispanic Ethnicity | 176 (5.2) | 26 (6.0) |
| Cause of ESRD | ||
| Diabetes | 1357 (40.3) | 193 (38.8) |
| Hypertension | 960 (28.5) | 150 (30.1) |
| Other | 1052 (31.2) | 155 (31.1) |
| Marital status | ||
| Married | 1465 (43.5) | 160 (41.1) |
| Divorced/Separated | 694 (20.6) | 75 (19.3) |
| Widowed | 476 (14.1) | 68 (17.5) |
| Single | 734 (21.8) | 86 (22.1) |
| Education Level | ||
| Grade School | 271 (8.0) | 33 (8.5) |
| High School | 2082 (61.8) | 221 (56.8) |
| College/Post Graduate | 1016 (30.2) | 135 (34.7) |
| English speaker | 3326 (98.7) | 373 (99.5) |
| Insurance | ||
| Medicare/Medicaid | 959 (28.5) | 114 (25.9) |
| Medicare only | 1533 (45.5) | 226 (51.3) |
| Medicaid only | 153 (4.5) | 15 (3.4) |
| Other | 724 (21.5) | 86 (19.5) |
| Active on transplant waitlist | 456 (13.5) | 56 (16.5) |
| Vascular access | ||
| Fistula | 2198 (65.2) | 322 (64.3) |
| Graft | 703 (20.9) | 95 (19.0) |
| Catheter | 468 (13.9) | 84 (16.8) |
| Albumin (g/dL) | 3.9 + 0.4 | 3.9 ± 0.4 |
| Hemoglobin (g/dL) | 11.2 + 1.1 | 11.3 ± 1.2 |
| Kt/V | 1.63 + 0.27 | 1.59 ± 0.27 |
| BMI (kg/m2) | 29.2 + 7.6 | 29.5 ± 7.9 |
| Unexcused absences | 476 (14.1) | 62 (12.4) |
| Treatments shortened | 1481 (44.0) | 221 (44.0) |
| Hospitalization | 336 (10.0) | 39 (7.8) |
| ESRD vintage (months) | 37.6 (18.2, 72.1) | 29.3 (13.3, 63.9) |
| ESRD vintage > 12 months before current facility | 711 (21.1) | 99 (19.7) |
| Ability to ambulate | 2858 (84.8) | 301 (80.3) |
| Ability to transfer | 3047 (90.4) | 321 (85.6) |
| Falls | 312 (9.3) | 29 (7.7) |
| ADL score | 8 (5, 8) | 8.0 (5.0, 8.0) |
| Response mode | ||
| 2800 (83%) | 419 (83.5) | |
| Telephone | 569 (17%) | 83 (16.5) |
aIndividuals excluded due to missing data on at least 1 covariate. Data presented as n (%), mean + standard deviation, or median (25th, 75th percentiles). ESRD End stage renal disease, BMI Body mass index, ADL Activities of daily living, Kt/V: Measure of dialysis adequacy. Unexcused absence was defined as missing an entire HD treatment without rescheduling; shortened treatment was defined as treatments that were at least 15 min shorter than prescribed; hospitalization included hospital stays for any reason