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. Author manuscript; available in PMC: 2018 Nov 21.
Published in final edited form as: AJR Am J Roentgenol. 2010 Aug;195(2):424–428. doi: 10.2214/AJR.09.3803

TABLE 1:

Descriptive Statistics

Questionnaire Result eGFR < 30 mL/min/1.73 m2 eGFR ≥ 30 mL/min/1.73 m2 Total
Yes (any yes) 7 371 378
No (no–no) 0 287 287
Total 7 658 665

Note—Responses are all No versus any Yes at both time points. eGFR = estimated glomerular filtration rate.