Table 3.

Multivariable Poisson regression and relative rate of all-cause hospitalization in patients on hemodialysis (n=140,132)

VariableRelative Rate (95% Confidence Interval)P Value
For-profit1.15 (1.13 to 1.18)<0.001
Region
 Northeast1.08 (1.05 to 1.10)<0.001
 South1.10 (1.08 to 1.12)<0.001
 Midwest1.06 (1.04 to 1.09)<0.001
 WestReference
Age (yr)
 18–441.17 (1.15 to 1.19)<0.001
 45–64Reference
 65–740.99 (0.98 to 1.01)0.29
 75–841.06 (1.04 to 1.08)<0.001
 ≥851.14 (1.11 to 1.17)<0.001
Male0.83 (0.82 to 0.84)<0.001
Race
 Black0.92 (0.91 to 0.93)<0.001
 Other0.84 (0.82 to 0.87)<0.001
 WhiteReference
Hispanic0.93 (0.91 to 0.94)<0.001
Congestive heart failure1.13 (1.12 to 1.15)<0.001
Atherosclerotic heart disease1.03 (1.02 to 1.05)<0.001
Cerebrovascular disease1.07 (1.05 to 1.09)<0.001
Peripheral vascular disease1.09 (1.07 to 1.11)<0.001
Hypertension0.90 (0.88 to 0.91)<0.001
History of amputation1.11 (1.08 to 1.15)<0.001
Diabetes mellitus1.18 (1.16 to 1.19)<0.001
Chronic obstructive pulmonary disease1.22 (1.20 to 1.24)<0.001
Tobacco use, current smoker1.15 (1.12 to 1.17)<0.001
Cancer1.12 (1.09 to 1.15)<0.001
Inability to ambulate or transfer1.11 (1.08 to 1.13)<0.001
Residence in skilled nursing facility, assisted living, or other1.19 (1.17 to 1.22)<0.001
Prior nephrology care
 Yes0.88 (0.86 to 0.89)<0.001
 Unknown1.06 (1.04 to 1.08)<0.001
 NoReference
Estimated GFR (per 5 ml/min per 1.73 m2)1.08 (1.07 to 1.09)<0.001
  • Data are adjusted for all variables shown.