Table 3. LPRR4 levels in tear from various types of DES by ELISA.

Parameter	Control(n = 19)	Total DES cases(n = 27)	DES with Non Sjogren’s(n = 10)	DES with primary Sjogren’s(n = 7)	DES Secondary to RA(n = 10)
LPRR4 µg/ml
Mean	6.95	1.5	1.99	2.45	0.44
SEM	0.78	0.52	0.64	0.94	0.14
P value		<0.001	0.001	0.007	<0.001
% severe cases		44%	20%	43%	70%