Table 3.

Logistic Regression Analysis for Factors Associated with Severe Neurocognitive Impairment

Variable	Bivariate Analysis		Multivariate Analysis
	cOR (95% CI)	p value	aOR(95% CI)	p value
Age	1.09 (1.06–1.12)	<0.001	1.08 (1.04–1.12)	<0.001
Gender
Male	Reference		Reference
Female	1.74 (1.45–2.64)	0.009	2.29 (1.29–4.07)	0.005
Area of residence
Urban	Reference		Reference
Rural	2.75 (1.6–4.74)	<0.001	1.82 (0.94–3.53)	0.077
Marital status
Divorced	0.90 (0.35–2.31)	0.833	0.75 (0.15–3.77)	0.728
Married	Reference		Reference
Never married	1.21 (0.12–11.80)	0.872	Omitted
Separated	0.96 (0.44–2.11)	0.914	0.90 (0.27–2.99)	0.863
Widowed	2.62 (1.70–4.04)	<0.001	1.43 (0.75–2.72)	0.282
Occupation status
Previously formally employed, retired but currently still active	Omitted		Omitted
Previously formally employed, retired but currently not active	0.49 (0.21–1.14)	0.098	1.48 (0.48–4.53)	0.492
Previously informally employed and currently not active	2.89 (1.78–4.70)	<0.001	1.52 (0.80–2.88)	0.202
Previously informally employed and currently still active	Reference		Reference
Level of education
Never attended school	Reference		Reference
Primary level	0.26 (0.17–0.41)	<0.001	0.34 (0.20–0.58)	<0.001
Secondary level	0.08 (0.03–0.20)	<0.001	0.10 (0.03–0.27)	<0.001
Tertiary level	0.02 (0.01–0.16)	<0.001	0.04 (0.04–0.37)	0.004
Type of housing
Homeless	Omitted		–	–
Private	Reference		–	–
Public	0.81 (0.29–2.24)	0.680	–	–
Rental	0.53(0.20–1.43)	0.217	–	–
Presence of a chronic illness
No	Reference		Reference
Yes	2.03 (1.22–3.39)	0.006	1.48 (0.80–2.71)	0.209
Presence of physical impairment
No	1		–	–
Yes	1.27 (0.86–1.88)	0.229	–	–
Functional dependence
Total dependency	Omitted		Omitted
Severe dependency	10.98 (5.12–23.51)	<0.001	7.63 (2.91–20.04)	<0.001
Moderate dependency	2.66 (1.63–4.33)	<0.001	1.98 (1.11–3.55)	0.022
Slight dependence	1.58 (0.84–2.97)	0.151	1.07 (0.51–2.21)	0.862
Complete dependence	Reference		Reference

Abbreviations: aOR, adjusted odds ratio; cOR, crude odds ratio.