Table 3: Adjusted odds ratios for visual impairment.

Variable β coefficient Standard error OR 95% CI p value
Monthly income < 2500 rupees 0.74 0.25 2.09 1.29-3.40 0.003
Smoking 0.49 0.25 1.63 0.98-2.71 0.057
Age ≥ 60 years 1.84 0.24 6.30 3.94-10.07 < 0.001
Low education 0.45 0.25 1.56 0.94-2.59 0.08