Table 2. Univariate analysis of the association of variables with total ED visits.
| Variables | Unadjusted IRR N = 4673 |
95% C.I. |
|---|---|---|
| Age (for every year) | 1.00 | 1.00–1.00 |
| Sex | 0.99–1.12 | |
| Male | 1.0 | |
| Female | 1.05 | |
| Race | ||
| White | 1 | |
| Black | 1.14 | 1.01–1.29 |
| Hispanic | 1.12 | 0.99–1.27 |
| Other | 0.90 | 0.77–1.06 |
| Language | 0.98–1.14 | |
| English | 1 | |
| Not-English | 1.06 | |
| SES dichotomized at 0 | 0.69–0.85 | |
| <0 | 1 | |
| > = 0 | 0.77 | |
| Living in a skilled nursing facility(n = 4358) | 0.99–1.24 | |
| No | 1 | |
| Yes | 1.11 | |
| Married | 0.88–0.99 | |
| No | 1.0 | |
| Yes | 0.93 | |
| Insurance type | ||
| Commercial | 1 | |
| Medicaid | 1.25 | 1.14–1.36 |
| Medicare | 1.28 | 1.17–1.39 |
| Minimal BMI (for every one unit increase) (n = 4,480) | 0.98 | 0.98–0.98 |
| Maximum Phosphorus (for every 1mg/dL increase)(n = 4487) | 1.12 | 1.11–1.13 |
| Maximum Hemoglobin (for every 1mg/dL increase in Hgb)(n = 4623) | 1.06 | 1.04–1.07 |
| Minimum Hemoglobin (for every 1mg/dL increase)(n = 4623) | 0.85 | 0.84–0.87 |
IRR = incident rate ratio, SES = socio-economic class