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Table 3 Odds ratios (OR) and 95% confidence intervals (CI) of cataract (all types) for categories of corrected and non-corrected outdoor exposure

From: Years of sunlight exposure and cataract: a case-control study in a Mediterranean population

 

Outdoor exposure from 10 am-4 pm corrected for protective factors (years; fifths)

 

< 0.073*

0.073 – 0.190

0.191 – 0.428

0.429 – 0.800

> 0.800

Trend test (p-value)

No. of cases = 332

72

56

74

59

71

 

No. of controls = 327

66

65

66

65

65

 

OR†

1

0.80

1.06

0.84

0.99

0.98

(95% CI)

 

(0.49, 1.31)

(0.65, 1.71)

(0.51, 1.37)

(0.61, 1.61)

 

OR§

1

0.97

1.03

0.84

0.99

0.81

(95% CI)

 

(0.56, 1.68)

(0.60, 1.76)

(0.48, 1.45)

(0.57, 1.73)

 
 

Outdoor exposure from 10 am-4 pm (years; fifths)

 

< 0.312*

0.312 – 0.612

0.613 – 0.968

0.969 – 1.428

> 1.428

Trend test (p-value)

No. of cases = 332

73

57

65

43

94

 

No. of controls = 327

66

65

66

65

65

 

OR†

1

0.81

0.91

0.58

1.20

0.49

(95% CI)

 

(0.47, 1.38)

(0.53, 1.55)

(0.32, 1.02)

(0.71, 2.04)

 

OR§

1

0.77

0.85

0.57

1.19

0.83

(95% CI)

 

(0.45, 1.31)

(0.50, 1.47)

(0.32, 1.03)

(0.69, 2.03)

 
  1. A total of 11 cases and 7 controls were excluded because of missing values
  2. * Reference category
  3. Chi-squared test for linear trend with 1 df.
  4. † ORs are adjusted for sex and age.
  5. § ORs are adjusted for sex, age, smoking history, alcohol consumption, education and serum levels of antioxidants