TABLE 4.

Correlation of demographic information with psychological disturbances for dry eye disease (DED) patients.

Range of age	20–40				41–65
	Anxiety scores		Depression scores		Anxiety scores		Depression scores
	r	P	r	P	r	P	r	P
Age	0.224	0.046	–0.059	0.61	0.122	0.282	0.079	0.487
Gender	0.168	0.137	–0.146	0.2	0.087	0.442	0.004	0.971
Level of education	0.085	0.451	–0.108	0.34	–0.202	0.072	–0.183	0.104
Sleep disorders	0.470	0.000	0.434	0.000	0.382	0.000	0.457	0.000
Frequency of Sleeping later than 24:00	0.256	0.022	0.083	0.47	0.008	0.944	–0.030	0.794
Length of visual terminals use	0.126	0.264	–0.114	0.31	–0.131	0.246	–0.208	0.064
Discomfort Duration	0.357	0.001	0.453	0.000	–0.067	0.555	0.058	0.611
Level of impact on life and work	0.342	0.002	0.195	0.08	0.491	0.000	0.420	0.000
Level of concern about discomfort	0.189	0.092	0.111	0.33	0.387	0.000	0.235	0.036
Smoking and drinking	–0.130	0.252	–0.052	0.64	–0.168	0.136	–0.220	0.164

Sleep disorders, Sleep duration >6 h, Number of awekenings > 2 times, Time to fall asleep > 30mins.

Significant values are shown in bold. P-values < 0.05 were considered significant.