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. Author manuscript; available in PMC: 2013 May 1.
Published in final edited form as: Am J Kidney Dis. 2012 Feb 2;59(4):550–557. doi: 10.1053/j.ajkd.2011.11.040

Table 3.

Univariate (3A) and multivariable analysis (3B) of factors associated with day 91 modality after an initial choice of PD

A
PD (n=60) HD (n=55) p value
Age (years) 56.7 ± 12.8 61.1 ± 16.1 0.1
Age > 75 years 3 (5%) 13 (24%) 0.004
Gender (#, % male) 28 (47%) 27 (49%) 0.8
Race (#, % Caucasian) 44 (73%) 40 (73%) 0.94
Ethnicity (#, % Hispanic) 3 (5%) 3 (6%) 0.86
Time*(weeks) 22.4, 12–50.5 41.4, 12.7–63.1 0.05
GFR**(ml/min) 14.8 ± 5.2 16.4 ± 7.1 0.2
Income $41822 ± $16829 $42642 ± $16125 0.79
BMI 29.1 ± 6.0 30.3 ± 7.1 0.35
Diabetes as cause of ESRD (#, %) 25 (42%) 24 (44%) 0.83
Glomerular disease as cause of ESRD (#, %) 16 (27%) 6 (11%) 0.03
Comorbidities 2, 1–3 2, 2–4 0.17
Education (#, % more than high school) 27 (52%) 14 (39%) 0.23
Smoking (#, % ever) 32 (54%) 31 (56%) 0.82
Insurance (#, % government) 31 (54%) 32 (65%) 0.26
Employment Status (#, % working) 12 (21%) 5 (10%) 0.13
Marital Status (#, % married) 39 (65%) 27 (58%) 0.42
Time 2 (weeks) 122.3, 46.5–255.4 112.9, 51.7–261.1 0.81
Number of visits in year preceding RRT 5.2 ± 2.8 5.2 ± 3.2 0.97
GFR 2 †† (ml/min) 23, 16.5–33 25, 17.5–32 0.95
B
OR P value 95% CI
Age > 75 7.8 0.001 2.4–25.2
Time* 1.0 0.77 0.99–1.01
Non white race 2.7 0.006 1.3 – 5.5
gender 1.1 0.93 0.54–2.0
Glomerular cause of ESRD^ 0.25 0.004 0.10–0.64
Diabetes as cause of ESRD ^ 0.92 0.22 0.45 – 1.9

Percentage calculations are based on patients in whom the variable of interest was known.

^

The joint test of glomerular disease and diabetes as cause of ESRD relative to other causes as a predictor of day 91 modality yielded a p = 0.01.

Data are presented as mean ± standard deviation if normal, and as median, 25th percentile – 75th percentile if not.

*

Time between education session and RRT start,

**

GFR at time of education using 4 variable MDRD equation,

Time between first nephrologist visit and RRT start,

††

GFR at first nephrologist visit using 4 variable MDRD equation.