Socio-demographic and health-related factors associated with cognitive impairment in the elderly in Taiwan

BMC Public Health

Table 2 Multiple logistic regression of cognitive impairment and related factors. Data collected in Taiwan, 2005

	Cognitive impairment
	OR^b	95%CI^b		p
		Lower	Upper
Age(years)(65-74 ^a)
75+	1.27	0.98	1.63	0.068
Gender (Male ^a)
Female	1.16	0.84	1.59	0.375
Educational level (Illiterate ^a)
Elementary school	0.51	0.39	0.67	0.000
High school and higher	0.25	0.16	0.38	0.000
Marital Status (Single ^a)
Married	0.76	0.60	0.98	0.032
Social support (Low ^a)
Moderate	0.87	0.65	1.16	0.352
High	0.62	0.45	0.87	0.005
Hyperlipidemia (No ^a)
Yes	0.65	0.48	0.88	0.005
Stroke (No ^a)
Yes	1.69	1.05	2.72	0.031
Physical function (Normal ^a)
Mild	1.34	0.96	1.86	0.081
Moderate	2.32	1.70	3.16	0.000
Severe	3.10	2.00	4.80	0.000
Depressive symptoms (No ^a)
Yes	1.34	1.00	1.79	0.054
Self-rated health (Good ^a)
Fair	0.95	0.72	1.25	0.697
Poor	1.09	0.78	1.53	0.611
Cigarette smoking (Never ^a)
Ex-smokers	1.09	0.70	1.70	0.690
Light smokers	1.05	0.66	1.64	0.848
Heavy smokers	0.75	0.45	1.25	0.265
Leisure-time physical activity (No ^a)
Low amount	0.73	0.56	0.96	0.026
Moderate to vigorous amount	0.72	0.53	0.97	0.029
Fruits and vegetables consumption (Low frequency ^a)
Medium frequency	0.84	0.51	1.37	0.481
High frequency	0.81	0.49	1.33	0.403
Coffee intake (No ^a)
Less than once per week	0.68	0.49	0.94	0.018
More than once per week	0.51	0.31	0.83	0.007
Tea intake (No ^a)
Less than once per week	1.14	0.82	1.59	0.437
More than once per week	0.99	0.75	1.30	0.940
Multivitamin intake (No^a)
Yes	0.82	0.59	1.13	0.226
BMI (kg/m²) (Low^a)
Normal (19 to 24)	0.81	0.51	1.28	0.365
Overweight or obese (> 24)	0.66	0.41	1.06	0.083

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