Table 5.

The relationship between severe dry eye and medical history

Risk factors		Yes		No		OR 95%CI	p
		N	%	n	%
Medical history	Yes	70	44.9	86	55.1	17.09 2.24 – 130.25	0.0001*
	No	1	45	21	95.5
Chronic conjunctivitis	Yes	7	25.9	20	74.4	0.36 0.14 – 0.91	0.027*
	No
Refractive error	Yes	3	12.5	51	87.5	0,14 0.04 – 0.48	0.0001*
	No	67	51.1	64	48.9
Allergic diseases	Yes	13	32.5	27	67.5	0.49 0.23-1.04	0.062
	No	57	49.6	58	50.4
Diabetes	Yes	1	50	1	50	1.2 0.07-19.59	1
	No	69	45.4	83	54.6
Hypertension	Yes	5	62.5	3	37.5	2.1 0.48-9.13	0.47
	No	65	14.2	82	55.8
Sjogren’s syndrome	Yes	30	93.8	2	6.3	31.13 7.08-136.76	0.0001*
	No	40	32.5	83	67.5
Athritis	Yes	22	46.8	25	53.2	1.1 0.55-2.19	0.786
	No	48	44.4	60	55.6
Other autoimmune diseases	Yes	3	100	0	0	0.44 0.37-0.53	0.09
	No	67	44.1	85	55.9

OR: odds ratio; 95% CI: confident interval;

^*: p < 0.05; P values were determined by Anova test.