Table 1 Demographic & clinical characteristics of study sample
Variable | Total cohort (n = 70,114) | Survived < 270 days (n = 17,177) | Survived ≥ 270 days (n = 52,937) | ±p-value |
|---|---|---|---|---|
Comorbidity index scores | ||||
*Original Liu Comorbidity Index Score (mean ± st. dev.) | Cannot be calculated | Cannot be calculated | 7.35 ± 3.99 | N/A |
**Modified Liu Comorbidity Index Score (mean ± st. dev.) | 6.60 ± 3.75 | 7.30 ± 4.16 | 6.37 ± 3.58 | <0.0001 |
Demographic and clinical characteristics | ||||
Age (years) (mean ± st. dev.) | 61.5 ± 15.4 | 62.3 ± 16.4 | 61.2 ± 15.1 | <0.0001 |
Gender (% women) | 56.2% | 53.8% | 57.0% | <0.0001 |
Race/Ethnicity | <0.0001 | |||
Black | 40.3% | 39.0% | 40.8% | |
Hispanic | 18.0% | 15.8% | 18.8% | |
Other | 6.0% | 5.2% | 6.2% | |
White | 35.7% | 40.0% | 34.3% | |
Employed | 2.5% | 3.2% | 2.3% | <0.0001 |
Tobacco use | 6.4% | 6.4% | 6.4% | 0.7830 |
Substance abuse | 2.9% | 2.9% | 2.8% | 0.7413 |
Unable to ambulate | 5.8% | 7.9% | 5.2% | <0.0001 |
Unable to transfer | 2.1% | 3.3% | 1.8% | <0.0001 |
Home dialysis | 4.9% | 4.6% | 5.0% | 0.0589 |
Body Mass Index | <0.0001 | |||
<20 | 10.4% | 12.5% | 9.7% | |
≥20 to < 24.99 | 30.0% | 31.5% | 29.5% | |
≥25 to <29.99 | 26.9% | 26.2% | 27.1% | |
≥30 | 32.8% | 29.9% | 33.7% | |
Hemoglobin >11 mg/dL | 25.0% | 24.8% | 25.0% | 0.4501 |
Primary renal diagnosis: | <0.0001 | |||
Diabetes mellitus | 53.0% | 49.3% | 54.2% | |
Hypertension | 25.7% | 26.5% | 25.4% | |
Immune | 7.4% | 7.5% | 7.3% | |
Other | 14.0% | 16.8% | 13.1% | |
¶Diabetes mellitus | 62.8% | 60.3% | 63.7% | <0.0001 |
Congestive heart failure | 34.2% | 37.1% | 33.3% | <0.0001 |
Coronary artery disease | 25.4% | 27.2% | 24.8% | <0.0001 |
Cerebrovascular disease | 11.1% | 12.5% | 10.6% | <0.0001 |
Peripheral vascular disease | 14.8% | 16.6% | 14.3% | <0.001 |