Table 2.

Test performance for serum and BAL BG at different cutoff levels

Variables and cutoffs	Sensitivity	Specificity	PPV	NPV
Serum BG, pg/mL
80	.98 (.94, 1.0)	.39 (.27, .51)	.54 (.44, .65)	.96 (.88, 1.0)
300	.91 (.83, .99)	.92 (.85, .99)	.89 (.81, .98)	.93 (.87, 1.0)
490	.74 (.61, .87)	.95 (.90, 1.0)	.92 (.83, 1.0)	.83 (.74, .92)
BAL BG, pg/mL
241	.95 (.89, 1.0)	.39 (.26, .51)	.54 (.43, .65)	.92 (.81, 1.0)
783	.72 (.59, .86)	.79 (.68, .90)	.72 (.59, .86)	.79 (.68, .90)
2241	.12 (.02, .21)	.95 (.89, 1.0)	.63 (.29, .96)	.59 (.49, .69)

BG = Betaglucan; PPV = positive predictive value; NPV = negative predictive value