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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 2.

Univariate (2A) and multivariable analysis (2B) of factors associated with starting modality after an initial choice of PD

A
Started PD (n=59) Started HD (n=65) p value
Age (years) 58.2 ± 13.5 60.6 ± 15.4 0.4
Age > 75 years 4 (7%) 13 (20%) 0.03
Gender (% male) 29 (49%) 31 (48%) 0.9
Race (#, % Caucasian) 45 (76%) 47 (71%) 0.5
Ethnicity (#, % Hispanic) 6 (10%) 3 (5%) 0.3
Time* (weeks) 24.9, 12.9–50 38.9, 11.9–57.3 0.4
GFR** (ml/min) 15.2 ± 4.9 15.8 ± 6.9 0.6
Income $41687± $16200 $44027 ± $17545 0.4
BMI 29.7 ± 6.1 29.8 ± 7.3 1
Diabetes as cause of ESRD (#, %) 28 (47%) 27 (42%) 0.5
Glomerular disease as cause of ESRD (#, %) 15 (24%) 10 (14%) 0.2
Comorbidities 2, 1–3 2, 2–4 0.3
Education (#, % more than high school) 26 (49%) 18 (45%) 0.7
Smoking (#, % ever) 32 (54%) 35 (55%) 1
Insurance (#, % government) 31 (53%) 38 (68%) 0.1
Employment Status (#, % working) 14 (24%) 3 (5%) 0.004
Marital Status (#, % married) 37 (63%) 33 (59%) 0.68
Time 2 (weeks) 126, 55.9–303.3 102.7, 10.3–230.4 0.8
Number of visits in year preceding RRT 5.8 ± 2.9 4.8 ± 3.0 0.07
GFR2 †† (ml/min) 24, 19–34 23.5, 16–31 0.95
B
OR p value 95% CI
Age > 75 years 4.0 0.05 1.03–15.8
Employed 0.16 0.01 0.04–0.64
Gender 1.0 0.92 0.46–2.4
Race 1.7 0.26 0.67–4.3
# of visits 0.87 0.06 0.74–1.01
Glomerular cause of ESRD ^ 0.31 0.05 0.95 – 1.0
Diabetes as cause of ESRD ^ 0.57 0.24 0.23 – 1.4

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 initial modality yielded a p = 0.13

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.