Table 2.

Sarcoidosis characteristics at enrollment/time of blood draw in cases and controls.

	Cases		Controls	p-value*
	PFT Decrease	PFT Increase
	N = 22	N = 11	N = 10
Age (mean years, SD)	56 (12)	50 (13)	46 (9)	0.082
Female (%)	16 (73)	4 (36)	3 (30)	0.089
Race (%)				0.37
African American	1 (5)	2 (18)	0 (0)
White	19 (86)	7 (64)	8 (80)
Hispanic	2 (9)	0 (0)	0 (0)
Other	0 (0)	2 (18)	2 (20)
Ever Smokers	11 (50)	6 (55)	4 (40)	0.64
Immunosuppression Use (%)	9 (41)	6 (55)	0 (0)	N/A
Extra-thoracic Organ Involvement (%)	75	78	10	0.00056
Initial Visit PFTs: Mean (SD)
FVC %predicted	97 (16)	80 (18)	99 (13)	0.012
FEV1 %predicted	89 (18)	75 (24)	89 (17)	0.11
FEV1/FVC	0.72 (0.085)	0.72 (0.14)	0.71 (0.081)	0.95
DLCO %predicted	74 (16)	59 (13)	79 (12)	0.011
TLC %predicted	99 (11)	83 (17)	93 (13)	0.027

^*p-values are for comparisons between cases and controls.

p-values for PFTs compare the controls and the cases as two separate groups.

N/A, not applicable.