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

From: Time trend of prevalence of self-reported cataract and its association with prolonged sitting in Taiwan from 2001 and 2013

Variable Category OR 95% CI P value
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
  1. †Education level: College and above includes online universities and online professional colleges.
  2. ‡Marital status: other includes living together, separated, divorced, and widowed.
  3. §Degrees of urbanization: other towns include aged towns, agricultural towns, and villages.