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. Author manuscript; available in PMC: 2014 Jan 29.
Published in final edited form as: Med Care. 2011 Jul;49(7):662–667. doi: 10.1097/MLR.0b013e31821d98b2

Table 1.

Characteristics of Medicare patients transferred from non-revascularization to revascularization hospitals

Characteristic White (n=25947) Black (n=2345) p value
Age, years 75 (9) 70 (11) <0.001
Female, % 55 47 <0.001
Critically ill, % 30 28 0.27
Distance to receiving hospital, miles, median (IQR) 26.2 (12-45) 16.1 (6.4-36) <0.001
Socioeconomic characteristics
    Present to rural hospital % 42 32 <0.001
    % below poverty*, mean (SD) 12 (7) 19 (10) <0.001
    Median household income*, thousands $US, mean (SD) 41.2 (15) 35.4 (13) <0.001
    % with less than high-school education*, mean (SD) 21 (10) 28 (11) <0.001
*

data abstracted at level of ZIP code

IQR, interquartile range; SD, standard deviation