Correlation of ocular surface function with sleep quality, anxiety, and depression in patients with dry eye disease

Table 2 Distribution of anxiety scores among the patients, n (%)/mean ± SD

Variable	Number	SAS	Statistic	P value
Total	358 (100)	47.30 ± 4.90
Age (years)			t = -1.83	0.068
< 50	213 (59.50)	46.91 ± 4.92
≥ 50	145 (40.50)	47.87 ± 4.83
Gender			t = -0.55	0.581
Female	243 (67.88)	47.20 ± 4.89
Male	115 (32.12)	47.50 ± 4.92
Degree of education			t = 0.01	0.996
College or higher	77 (21.51)	47.30 ± 4.80
Below college	281 (78.49)	47.30 ± 4.93
Hypertension			t = -0.98	0.328
No	239 (66.76)	47.12 ± 4.78
Yes	119 (33.24)	47.66 ± 5.13
Diabetes			t = -0.44	0.657
No	283 (79.05)	47.24 ± 4.93
Yes	75 (20.95)	47.52 ± 4.81
Duration of illness			t = -1.99	0.047
< 12 months	188 (52.51)	46.81 ± 5.11
≥ 12 months	170 (47.49)	47.84 ± 4.61

SAS: Self-Rating Anxiety Scale.