Table 2. Bivariate linear regression of age, education/literacy and sex on the cognitive tests in LICA.

Independent variables; age, education/literacy and sex. Age is categorized as '60-64, 65-69, 70-74, 75-80, and ≥80 years'; education/literacy is categorized as 'illiteracy, 0-3, 4-6, and ≥7 years'; and sex as 'male and female,' respectively. LICA: literacy independent cognitive assessment, MMSE: mini mental state examination, B: regression coefficient, SE (B): standard error of B, β: standardized regression coefficient, R2: variance explained by each variable