Table 1.

Dry eye assessment and statistical results between each groups.

	RA	Con	P	Ac	Sta	P	Sy	Asy	P	R	P (Dur and RA)
Mean age	51.933 ± 9.89	50.150 ± 9.433	0.463	49.400 ± 10.762	57.000 ± 5.249	0.055	50.454 ± 10.220	53.500 ± 7.270	0.730
Male/female	6/24	4/16	0.533	4/14	2/10	0.397	4/18	2/6	0.534
TBUT (s)	5.267 ± 3.478	10.868 ± 1.816	0.001	4.545 ± 2.066	6.710 ± 5.147	0.619	3.918 ± 2.128	8.975 ± 3.886	0.002	−0.119	0.532
TMH (mm)	0.186 ± 0.158	0.150 ± 0.052	0.331	0.211 ± 0.184	0.137 ± 0.069	0.619	0.177 ± 0.175	0.213 ± 0.099	0.097	0.341	0.066
MS	3.733 ± 1.710	1.250 ± 1.118	0.001	3.800 ± 1.814	3.600 ± 1.673	0.746	4.182 ± 1.471	2.500 ± 1.915	0.156	0.251	0.367
MSS	1.867 ± 0.834	0.400 ± 0.598	0.001	2.000 ± 0.943	1.600 ± 0.548	0.307	2.091 ± 0.831	1.250 ± 0.500	0.097	0.104	0.712
EMS	1.333 ± 0.900	0.300 ± 0.470	0.001	1.200 ± 1.033	1.600 ± 0.548	0.267	1.455 ± 0.934	1.250 ± 0.957	1.000	0.127	0.652
CFS	1.733 ± 0.961	0.150 ± 0.366	0.001	2.100 ± 0.876	1.000 ± 0.707	0.04	2.091 ± 0.831	0.750 ± 0.500	0.001	0.074	0.794

Data are shown as mean ± SD; Con: control group, RA: RA group, act: active group, Sta: stable group, Sy: symptomatic group, Asy: asymptomatic group, Dur: duration. The P value was calculated by using the Mann–Whitney U test or the spearman correlation test. R: coefficient of spearman correlation test.