表 3.

ARR单个指标及与低血钾联合的诊断价值

Diagnostic value of ARR single index and combination with hypokalemia

Index	Cut-off piont	AUC	Sensitivity/%	Specificity/%	Diagnostic accuracy/%
ARR, aldosterone to renin ratio; CCT, captopril challenge test. Hypokalemia defined as serum potassium < 3.5 mmol/L.
① ARR before CCT	7.12	0.67	35.85	77.78	60.0
② ARR after CCT	4.23	0.66	71.43	62.22	64.0
①+②		0.68	64.71	71.11	69.4
①+Hypokalemia		0.71	61.76	81.11	75.8
②+Hypokalemia		0.63	55.88	71.11	66.9
①+②+Hypokalemia		0.69	58.80	78.80	73.4