Table 4.

Multivariable Poisson regression and relative rate of all-cause hospitalization in patients on peritoneal dialysis (n=9947)

VariableRelative Rate (95% Confidence Interval)P Value
For-profit1.07 (0.97 to 1.17)0.16
Region
 Northeast1.31 (1.19 to 1.40)<0.001
 South1.26 (1.17 to 1.36)<0.001
 Midwest1.25 (1.15 to 1.35)<0.001
 WestReference
Age (yr)
 18–441.20 (1.11 to 1.29)<0.001
 45–64Reference
 65–741.04 (0.98 to 1.11)0.23
 75–841.15 (1.06 to 1.23)<0.001
 ≥851.46 (1.25 to 1.69)<0.001
Male0.88 (0.84 to 0.93)<0.001
Race
 Black1.12 (1.06 to 1.20)<0.001
 Other0.74 (0.65 to 0.84)<0.001
 WhiteReference
Hispanic0.89 (0.81 to 0.96) 0.005
Congestive heart failure1.24 (1.17 to 1.32)<0.001
Atherosclerotic heart disease1.05 (0.98 to 1.12)0.14
Cerebrovascular disease1.09 (0.99 to 1.20)0.07
Peripheral vascular disease1.08 (1.00 to 1.17)0.04
Hypertension0.87 (0.81 to 0.94)<0.001
History of amputation1.11 (0.93 to 1.33)0.23
Diabetes mellitus1.44 (1.37 to 1.52)<0.001
Chronic obstructive pulmonary disease1.25 (1.14 to 1.38)<0.001
Tobacco use, current smoker1.11 (1.02 to 1.22)0.02
Cancer1.12 (1.01 to 1.24)0.04
Inability to ambulate or transfer1.46 (1.23 to 1.74)<0.001
Residence in a skilled nursing facility, assisted living, or other1.22 (0.97 to 1.52)0.08
Prior nephrology care
 Yes0.97 (0.90 to 1.04)0.35
 Unknown1.01 (0.90 to 1.14)0.88
 NoReference
Estimated GFR (per 5 ml/min per 1.73 m2)1.04 (1.02 to 1.07)0.001
  • Data are adjusted for all variables shown.