Table 4.

Subject characteristics – Algorithm replication population

	Normal n = 224	Obstructed n = 258	Restricted n = 191
FEV1 % predicted [mean (SD)]	94.84 (9.51)	56.20 (13.85)	70.52 (10.00)
FEV1 (L)(± SD)	2.79 (0.65)	1.73 (0.56)	2.14 (0.57)
Sex (% male vs. female)	50 vs. 50	71 vs. 29	52 vs. 48
Smoke Status (Current vs. Past)	58 vs. 42	65 vs. 35	58 vs. 42
BMI [mean (SD)]	30.06 (6.75)	27.01 (6.25)	31.65 (7.19)
Age [mean (SD)]	59.90 (9.68)	65.41 (10.73)	61.09 (9.60)
Pack years [mean (SD)]	48.10 (43.89)	59.55 (36.81)	50.90 (46.88)