Table 2

Prevalence of presenting bilateral blindness (visual acuity <6/60) by age, sex, literacy, and residence

Number examined*Blindness prevalence No (%)Adjusted odds ratio (95% CI)
*Not including six people with missing visual acuity measurements; †p ≤0.001; ‡p≤0.010.
Age (years)
    50–592681155 (5.8)1.0
    60–691718218 (12.7)2.4 (1.9 to 2.9)†
    ≥701006219 (21.8)4.5 (3.5 to 5.7)†
Sex
    Male2420193 (8.0)1.0
    Female2985399 (13.4)1.4 (1.1 to 1.8)‡
Literacy
    Literate2119115 (5.4)1.0
    Illiterate3286477 (14.5)2.2 (1.6 to 3.1)†
Residence
    Urban1306 97 (7.4)1.0
    Rural4099495 (12.1)1.5 (0.8 to 2.8)
All5405592 (11.0)