Table 3.

Accuracy of ARR for PA screening in different age subgroups.

Cutoffs	Age < 40 y (n = 145)		Age 40–49 y (n = 118)		Age 50–59 y (n = 103)		Age ≥ 60 y (n = 119)
ARR (ng/dl)/(μIU/ml)	Sen	Spe	Sen	Spe	Sen	Spe	Sen	Spe
1	0.90	0.82	0.95	0.69	0.97	0.59	1.00	0.42
1.5	0.85	0.88	0.90	0.81	0.95	0.75	1.00	0.54
2	0.79	0.91	0.90	0.84	0.95	0.80	1.00	0.58
2.4	0.77	0.92	0.86	0.89	0.89	0.80	1.00	0.63
3.7	0.74	0.94	0.82	0.95	0.87	0.94	1.00	0.80