Anemia and Kidney Function Decline among the Middle-Aged and Elderly in China: A Population-Based National Longitudinal Study

Table 2

The decrease in eGFR of participants from 2011 to 2015.

	Anemia ()	No anemia ()	Total ()
Absolute decrease in eGFR (mL/min/1.73m^2), median (IQR)	11.0 (5.9, 18.5)	9.7 (5.2, 16.5)	9.8 (5.3, 16.9)
Percentage of decrease in eGFR (%), median (IQR)	11.0 (5.9, 19.2)	9.3 (5.1, 16.5)	9.5% (5.2, 16.9)
Rapid decline in kidney function^a, (%)	268 (31.4%)	1534 (24.1%)	1802 (25.0%)

Note: ^arapid decline in kidney function was defined as the percentage of decrease in eGFR exceeded quartile 3 (16.9%) from 2011 to 2015. Abbreviations: eGFR: estimated glomerular filtration rate; IQR: interquartile range.