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. 2018 May 1;13(5):e0193817. doi: 10.1371/journal.pone.0193817

Table 6. Weighted crude (univariable) associations with referrals, symptoms and need for primary eye care.

  Referrals (n = 4618) Symptoms (n = 4618) Need for Primary Eye Care (n = 4618)
  OR 95% CI p-value OR 95% CI p-value OR 95% CI p-value
                   
Age
    6–16 years Ref Ref Ref
    16–39 years 14.97 (1.80, 124,49) 0.01 1.29 (1.11, 1.50) <0.01 1.30 (1.12, 1.52) <0.01
    40+ years 86.90 (10.96,689.30) <0.01 2.38 (1.94, 2.92) <0.01 6.59 (5.29, 8.20) <0.01
Sex
    Male Ref Ref Ref
    Female 2.15 (1.28, 3.62) <0.01 1.30 (1.14, 1.48) <0.01 1.30 (1.15, 1.47) <0.01
Education
    None/ only preschool Ref Ref
    Primary 0.19 (0.11, 0.30) <0.01 0.61 (0.51, 0.73) <0.01 0.54 (0.44, 0.65) <0.01
    Post-primary or higher 0.16 (0.06, 0.40) <0.01 0.63 (0.49, 0.81) <0.01 0.48 (0.38, 0.60) <0.01
Urban or rural
    Urban Ref Ref Ref
    Rural 1.33 (0.64, 2.74) 0.44 0.87 (0.66, 1.15) 0.33 1.00 (0.75, 1.33) 0.99
SES quartile
(27 missing values)
    1 (poorest) Ref Ref
    2 1.10 (0.58, 2.09) 0.76 0.98 (0.78, 1.24) 0.87 0.98 (0.79, 1.21) 0.82
    3 0.69 (0.33, 1.44) 0.32 0.90 (0.70, 1.15) 0.39 1.01 (0.82, 1.25) 0.91
    4 (wealthiest) 0.42 (0.18, 1.01) 0.05 0.95 (0.72, 1.25) 0.70 0.88 (0.68, 1.13) 0.31
Health Insurance
(57 missing values)
    No Ref Ref
    Yes 0.84 (0.51, 1.390 0.49 0.89 (0,74, 1.06) 0.19 0.95 (0.80, 1.14) 0.59
Age (per year) 1.07 (1.06, 1.08) <0.01 1.02 (1.01, 1.02) <0.01 1.04 (1.04, 1.05) <0.01

OR–Odds Ratio; 95%CI- 95% confidence intervals; SES- socioeconomic status; Ref = reference value; all p-values from Wald test, with significant values <0.01 highlighted in bold.