Table 2

Occupational injuries and visual impairment

ReferenceResearch methodsStudy groupOphthalmic assessmentAdjustment for confounding variablesKey results
Abbreviations: (P) prospective study, (R) retrospective study; CI, confidence interval; OR, odds ratio.
25Cohort (R) using the Health and Retirement Study (HRS)n=6854, aged 51–61Self reportYesOdds of occupational injury: increased for those with poor sight OR 1.53 (95% CI 1.11 to 2.09)
24Cohort (R) using the National Health Interview Survey (NHIS)n=459, 827, aged 18–65Self reportYesOdds of occupational injury: increased for the blind OR 3.21 (95% CI 1.32 to 7.85), but not for the visually impaired OR 1.37 (95% CI 0.87 to 2.17)
53Cohorts (R) reanalysisParticipants in the NHIS and HRSSelf reportYesOdds of occupational injury: increased in subjects with poor vision in HRS study OR 1.48 (95% CI 1.07 to 2.06), but not in NHIS study OR 2.42 (95% CI 0.77 to 7.60)