Table 3.

Diagnostic accuracy of urine dipstick test results for detection of A3 category proteinuria.

	Dipstick ≥ trace for A3 proteinuria detection				Dipstick ≥ 1+ for A3 proteinuria detection
	Sensitivity	Specificity	PPV	NPV	Sensitivity	Specificity	PPV	NPV
Total population	0.971	0.641	0.670	0.968	0.884	0.849	0.815	0.907
Man	0.986	0.580	0.666	0.980	0.922	0.817	0.811	0.924
Woman	0.948	0.715	0.677	0.956	0.823	0.888	0.822	0.889
Urine specific gravity <1.010	0.911	0.915	0.891	0.931	0.702	0.989	0.980	0.814
Urine specific gravity <1.015	0.956	0.819	0.833	0.952	0.830	0.954	0.945	0.856
Urine specific gravity ≥1.010	0.991	0.553	0.624	0.988	0.943	0.804	0.782	0.950
Urine specific gravity ≥1.015	0.995	0.479	0.522	0.994	0.965	0.753	0.691	0.974

PPV, positive predictive value; NPV, negative predictive value.