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. 2009 Jan;4(1):48–56. doi: 10.2215/CJN.05301107

Table 5.

Comparison between alternate definitions of anemiaa

Z-score Definition KDOQI Definition
≥33% n (%b) <33% n (%b) Total n (%b)
Above −2 SD 1522 (54.8) 32 (1.2) 1554 (55.9)
Below −2 SD 280 (10.1) 945 (34.0) 1225 (44.1)
Total 1802 (64.8) 977 (35.2) 2779 (100.0)
a

McNemar's test P < 0.0001, kappa coefficient 0.77.

b

Percent of total.