Table 3 The association between corneal arcus and study variables by multiple logistic regression

Gender

 Female

1

-

1

 Male

1.75 (1.34—2.27)

 < 0.001

1.51 (1.14–2.00)

0.005

Age Group

 60—64

1

-

1

-

 65—69

1.43 (1.19—1.72)

 < 0.001

1.44(1.19 -1.73)

 < 0.001

 70—74

2.15 (1.72—2.70)

 < 0.001

2.09(1.68 -2.59)

 < 0.001

 75—79

2.31 (1.76—3.02)

 < 0.001

2.39(1.84 -3.1)

 < 0.001

 80 and more

2.75 (1.97—3.83)

 < 0.001

2.44(1.68 -3.53)

 < 0.001

Education Level

 Illiterate

1

-

NS

 Primary School

0.88 (0.67—1.16)

0.371

 Guide School

0.84 (0.63—1.12)

0.232

 High School

0.99 (0.73—1.34)

0.950

 College

1.29 (0.91—1.83)

0.152

SES

 Low

1

-

NS

 Middle

1.00 (0.82—1.22)

0.976

 High

0.86 (0.68—1.08)

0.191

Occupation

 Employed

1

-

1

-

 Retired

2.00 (1.31—3.07)

0.001

2.05(1.31 -3.21)

0.002

 Unemployed/ disabled

1.70 (0.94—3.10)

0.081

1.59(0.87 -2.89)

0.127

 Housekeeper

2.70 (1.65—4.42)

 < 0.001

2.2(1.34 -3.61)

0.002

Smoking

 No

1

-

NS

 Yes

1.04 (0.84—1.28)

0.723