Table 3

Association of moderate visual impairment with age, sex, socioeconomic status, and area of residence

Total* (n=10 018)No with moderate visual impairment (%)Odds ratio for having moderate visual impairment with multiple logistic regression (95% confidence interval)
*From the total sample of 10 293 subjects, 275 subjects reported as blind6 were excluded for this analysis; †p<0.0001; χ2 test; ‡p=0.004; χ2 test; §p=0.002; χ2 test; socioeconomic status defined according to monthly per capita income in Indian rupees: upper >2000 (US$45), middle 501–2000, lower 201–500, and extreme lower≤200. Data on socioeconomic status not available for 189 subjects; ¶p<0.0001; χ2 test.
Age (years)†
    0–152856 38 (1.3) 1.00
    16–291840 38 (2.1) 1.59 (1.01 to 2.51)
    30–391845 46 (2.5) 1.90 (1.23 to 2.94)
    40–491403169 (12.0) 10.66 (7.43 to 15.30)
    50–59995333 (33.5) 39.53 (27.86 to 56.09)
    60–69799415 (51.9) 85.54 (60.11 to 121.71)
    ≥70280198 (70.7)218.11 (142.77 to 333.23)
Sex‡
    Male4737537 (11.3) 1.00
    Female5281700 (13.3) 1.47 (1.27 to 1.71)
Socioeconomic status§
    Upper360 22 (6.1) 1.00
    Middle3113384 (12.3) 1.95 (1.18 to 3.23)
    Lower5063653 (12.9) 2.67 (1.62 to 4.41)
    Extreme lower1293156 (12.1) 3.03 (1.78 to 5.17)
Area of residence¶
    Hyderabad2473201 (8.1) 1.00
    West Godavari2406356 (14.8) 2.27 (1.82 to 2.83)
    Adilabad2623266 (10.1) 1.53 (1.21 to 1.94)
    Mahabubnagar2516414 (16.5) 2.50 (2.01 to 3.12)