Table 1. Predictors of 1-Year Survival for End-Stage Renal Disease Patients on Hemodialysis1.
| Predictor Variables | Logistic Regression Estimates | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
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| Specific Variable | Full Model of Variables | |||||||||
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| Variable | Type | Units | DF | Chi-Square | P-value | Odds Ratio 2 | Additional Variables in Model3 | DF | Chi-Square | P-value |
| Black Race | Demographic | 0-1 | 1 | 13.8 | 0.0002 | 12.642 | Age, Sex | 3 | 18.6 | 0.0003 |
| Hypertension | Pathophysiologic (Diagnostic) | 0-1 | 1 | 6.5 | 0.01 | 8.954 | Age, Sex, Race | 4 | 25.3 | 0.0001 |
| Higher Physical Functioning 4 | Psychosocial (HRQOL Physical) | 0-100 | 1 | 7.0 | 0.008 | 1.050 | Age, Sex, Race, Hypertension | 5 | 30.7 | 0.0001 |
| Higher Performance 5 | Psychosocial (Provider-Report) | 0-100 | 1 | 6.3 | 0.01 | 1.061 | Age, Sex, Race, Hypertension | 5 | 30.0 | 0.0001 |
| Fewer Private Religious Activities 6 | Psychosocial (Religiosity) | 0-100 | 1 | 5.7 | 0.02 | 1.030 | Age, Sex, Race, Hypertension | 5 | 30.8 | 0.0001 |
| Living with Own Family | Psychosocial (Social Environment) | 0-1 | 1 | 4.8 | 0.03 | 5.196 | Age, Sex, Race, Hypertension | 5 | 29.1 | 0.0001 |
1
N=103.
2
The odds ratio (OR) indicates that n units of change in predictor variable units would increase the chance of survival by ORn times.
3
In each of the separate logistic regressions with 1-year survival as the dependent variable, the full model of independent variables included the specific variable in the first column plus the control variables listed in this column.
4
Kidney Disease Quality of Life Short Form (KDQOL-SF). Scale=0-100.
5
Karnofsky Performance Index. Scale=0-100.
6
Duke Religion Index (DUREL). Scale=0-100
NOTES: DF is degrees of freedom. HRQOL is health-related quality of life.
SOURCE: Parkerson, G. R. Jr. and Gutman, R.A., Duke University Medical Center, Durham, North Carolina, 1998.