Table 3.
Stage 1 Cox proportional hazard model estimates of patient case mix factors on referral for transplantation for data years 2008–2011
| Parameters | Referent Group | Coefficient | SEM | Hazard Ratio (95% CI) |
|---|---|---|---|---|
| Age (yr) group | ||||
| 19–30 | 0.34 | 0.09 | 1.40 (1.18 to 1.66) | |
| 31–40 | 0.34 | 0.07 | 1.40 (1.23 to 1.59) | |
| 51–60 | −0.22 | 0.06 | 0.80 (0.72 to 0.89) | |
| 60+ | 41–50 | −0.75 | 0.06 | 0.47 (0.42 to 0.53) |
| Race group | ||||
| Black | White | 0.12 | 0.05 | 1.12 (1.02 to 1.24) |
| Other | 0.22 | 0.14 | 1.25 (0.95 to 1.65) | |
| Men | Women | 0.13 | 0.04 | 1.14 (1.05 to 1.24) |
| Incident ESRD year | ||||
| 2008 | −0.30 | 0.06 | 0.74 (0.66 to 0.84) | |
| 2009 | −0.18 | 0.06 | 0.84 (0.75 to 0.94) | |
| 2010 | 2011 | −0.05 | 0.06 | 0.95 (0.85 to 1.07) |
| BMI≥35 kg/m2 | −0.06 | 0.05 | 0.94 (0.86 to 1.04) | |
| BMI unknown | BMI<35 kg/m2 | −0.51 | 0.15 | 0.60 (0.45 to 0.81) |
| Comorbidities | ||||
| Congestive heart failure | None | −0.16 | 0.05 | 0.85 (0.77 to 0.94) |
| Congestive heart failure unknown | None | −0.92 | 0.60 | 0.40 (0.12 to 1.30) |
| Atherosclerotic heart disease | None | 0.00 | 0.09 | 1.00 (0.85 to 1.18) |
| Other cardiac disease | None | −0.14 | 0.07 | 0.87 (0.76 to 1.00) |
| Cerebrovascular disease | None | −0.27 | 0.09 | 0.77 (0.64 to 0.91) |
| Peripheral vascular disease | None | −0.24 | 0.09 | 0.79 (0.66 to 0.95) |
| COPD | None | −0.28 | 0.11 | 0.76 (0.61 to 0.94) |
| Hypertension | None | 0.23 | 0.07 | 1. 25 (1.09 to 1.44) |
| Diabetes | None | −0.02 | 0.04 | 0.98 (0.90 to 1.07) |
| Tobacco use | None | −0.21 | 0.08 | 0.81 (0.70 to 0.95) |
| Cancer | None | −0.71 | 0.14 | 0.49 (0.37 to 0.64) |
| Nursing home status | None | −2.14 | 0.32 | 0.12 (0.06 to 0.22) |
95% CI, 95% confidence interval; BMI, body mass index; COPD, chronic obstructive pulmonary disease.