Multivariable logistic regression results
| Visual impairment (including blindness) | Below UK driving standard | |||||
|---|---|---|---|---|---|---|
| (<6/18) n=60 | (<6/10) n=484 | |||||
| OR | 95% CI | p Value | OR | 95% CI | p Value | |
| Age (per 10 years) | 2.76 | (1.97 to 3.86) | <0.001 | 2.48 | (2.20 to 2.81) | <0.001 |
| Sex | ||||||
| Male | Ref | Ref | ||||
| Female | 1.09 | (0.63 to 1.87) | 0.76 | 1.33 | (1.09 to 1.63) | 0.005 |
| BMI (per 5 Kg/m2) | 0.90 | (0.65 to 1.24) | 0.53 | 0.95 | (0.85 to 1.06) | 0.37 |
| Social class | ||||||
| Professional | Ref | Ref | ||||
| Managerial/technical | 0.68 | (0.24 to 1.93) | 0.47 | 0.98 | (0.67 to 1.45) | 0.93 |
| Skilled non-manual | 1.06 | (0.33 to 3.34) | 0.93 | 1.29 | (0.84 to 1.96) | 0.25 |
| Skilled manual | 1.29 | (0.42 to 3.94) | 0.65 | 1.28 | (0.84 to 1.96) | 0.25 |
| Partly skilled | 1.08 | (0.32 to 3.70) | 0.90 | 1.12 | (0.70 to 1.79) | 0.64 |
| Unskilled | 2.47 | (0.59 to 10.37) | 0.22 | 1.29 | (0.65 to 2.53) | 0.47 |
| Test for trend | 1.03 | (1.00 to 1.06) | 0.09 | 1.01 | (1.00 to 1.02) | 0.09 |
| Education level | ||||||
| Degree | Ref | Ref | ||||
| A level | 0.63 | (0.27 to 1.49) | 0.29 | 1.25 | (0.90 to 1.72) | 0.18 |
| O level | 0.15 | (0.02 to 1.24) | 0.08 | 1.34 | (0.89 to 2.02) | 0.16 |
| Less than O level | 1.34 | (0.56 to 3.21) | 0.51 | 1.49 | (1.05 to 2.11) | 0.024 |
| Test for trend | 1.26 | (0.97 to 1.64) | 0.08 | 1.12 | (1.02 to 1.23) | 0.022 |
| Smoking status | ||||||
| Never | Ref | Ref | ||||
| Ever | 1.39 | (0.80 to 2.39) | 0.24 | 1.19 | (0.98 to 1.45) | 0.08 |
OR and 95% CI for the WHO definition of visual impairment/blindness, and better eye presenting visual acuity worse than the UK driving standard. All variables presented were included together in each of the two models. Results are for participants with complete data for all the variables presented (n=8411).
BMI, body mass index.