Table 4. Association of clinical variables with cognitive impairment (n=240).

*significant P-value, ref: reference variable, OHA: oral hypoglycemic agents

Variable		Frequency  n	Cognitive Impairment present  n (%)	Prevalence ratio (95% Confidence Interval)	P-value
Co-morbidity	Present	153	50 (32.7)	1.29 (0.84-1.98)	0.230
	Absent	87	22 (25.3)	1.00 (ref)
Duration of illness	< 5 years	113	33 (29.2)	1.05 (0.71- 1.55)	0.800
	≥ 5 years	127	39 (30.7)	1.00 (ref)
Treatment with	Insulin	23	9 (39.1)	1.35 (0.78- 2.34)	0.315
	OHA	217	63 (29.0)	1.00 (ref)
Probable symptomatic hypoglycemia	Present	95	39 (41.1)	1.80 (1.22- 2.65)	0.002*
	Absent	145	33 (22.8)	1.00 (ref)
Tobacco users	Ever	56	19 (33.9)	1.18 (0.77- 1.81)	0.464
	Never	184	53 (28.8)	1.00 (ref)
Alcohol users	Ever	54	9 (16.7)	0.49 (0.26- 0.92)	0.015*
	Never	186	63 (33.9)	1.00 (ref)
Physical activity	Inadequate	181	56 (30.9)	1.14 (0.71- 1.83)	0.578
	Adequate	59	16 (27.1)	1.00 (ref)
Blood sugar levels	Uncontrolled	131	40 (30.5)	1.04 (0.70- 1.53)	0.843
	Under control	109	32 (29.4)	1.00 (ref)
Body mass index	Malnourished	174	54 (31.0)	1.06 (0.71- 1.60)	0.570
	Normal	66	18 (27.3)	1.00 (ref)