Table 3 Logistic regression analysis of factors associated with cataract in Taiwanese persons aged 40 years and older

Survey year

2001

1.00

2009

1.42

(1.23 - 1.63)

<0.001

2013

1.07

(0.93 - 1.23)

0.335

Sitting time (grouped), hours

<3

1.00

3–4

1.09

(0.95 - 1.25)

0.226

5–6

1.02

(0.88 - 1.18)

0.783

≥7

1.20

(1.04 - 1.39)

0.016

Age (group), years

40–54

0.04

(0.03 - 0.05)

<0.001

55–64

0.25

(0.22 - 0.29)

<0.001

≥ 65

1.00

Sex

Male

1.00

Female

1.33

(1.16 - 1.53)

<0.001

Education level†

None

1.00

Junior high school and below

0.85

(0.74 - 0.97)

0.020

Senior high school

0.71

(0.59 - 0.87)

0.001

College or Bachelor’s degree

0.77

(0.61 - 0.97)

0.028

Master’s degree and above

1.03

(0.64 - 1.66)

0.899

Marital status‡

Never married

0.83

(0.58 - 1.18)

0.282

Married

1.00

Other

1.09

(0.98 - 1.23)

0.121

Employed status

0.61

(0.53 - 0.70)

<0.001

Monthly household income ($NT)

<30,000

1.00

≥ 30,000 to <70,000

0.89

(0.78 - 1.02)

0.098

≥70,000

0.87

(0.74 - 1.03)

0.102

Not stated

0.82

(0.69 - 0.96)

0.018

Degrees of urbanization§

High urbanization

1.00

Moderate urbanization

0.78

(0.68 - 0.90)

0.001

Developing towns

0.64

(0.54 - 0.76)

<0.001

General towns

0.71

(0.59 - 0.85)

<0.001

Other towns

0.68

(0.53 - 0.87)

0.003

Health status

Hypertension

1.39

(1.25 - 1.54)

<0.001

Diabetes

1.58

(1.38 - 1.80)

<0.001

Myopia

1.26

(1.06 - 1.48)

0.008

Smoking status

Never smokers

1.00

Former smokers

1.20

(1.00 - 1.56)

0.046

Current smokers

0.83

(0.70 - 1.00)

0.045