Effect of primary care physicians' use of estimated glomerular filtration rate on the timing of their subspecialty referral decisions

Table 2 Recommended serum creatinine and estimated glomerular filtration rate (eGFR)-based referral levels by characteristics of the hypothetical patient

	Median referral level mL/min/1.73m²
	Creatinine-based eGFR*	p value	eGFR	p value	Absolute difference	p value
Race		<0.001		0.47		0.03
African American	34		54		19
White	28		55		26
Diabetes		0.90		0.42		0.34
Yes	32		60		26
No	32		50		22

*The recommended median serum creatinine at referral for all versions of the clinical scenario was 2 mg/dL

ISSN: 1471-2369