Measures of socioeconomic status and self-reported glaucoma in the U.K. Biobank cohort

Y Shweikh, F Ko, M P Y Chan, P J Patel, Z Muthy, P T Khaw, J Yip, N Strouthidis, P J Foster, UK Biobank Eye and Vision Consortium

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Abstract

PURPOSE: To determine ocular, demographic, and socioeconomic associations with self-reported glaucoma in the U.K. Biobank.

METHODS: Biobank is a study of U.K. residents aged 40-69 years registered with the National Health Service. Data were collected on visual acuity, intraocular pressure (IOP), corneal biomechanics, and questionnaire from 112,690 participants. Relationships between ocular, demographic, and socioeconomic variables with reported diagnosis of glaucoma were examined.

RESULTS: In all, 1916 (1.7%) people in U.K. Biobank reported glaucoma diagnosis. Participants reporting glaucoma were more likely to be older (mean 61.4 vs. 56.7 years, P<0.001) and male (2.1% vs. 1.4%, P=0.001). The rate of reported glaucoma was significantly higher in Black (3.28%, P<0.001) and Asian (2.14%, P=0.009) participants compared with White participants (1.62%, reference). Cases of reported glaucoma had a higher mean IOP (18 mm Hg both eyes, P<0.001), lower corneal hysteresis (9.96 right eye, 9.89 left eye, P<0.001), and lower visual acuity (0.09 logMAR right eye, 0.08 logMAR left eye, P<0.001) compared with those without (16 mm Hg both eyes, hysteresis 10.67 right eye, 10.63 left eye, 0.03 logMAR right eye, 0.02 logMAR left eye). The mean Townsend deprivation index was -0.72 for those reporting glaucoma and -0.95 for those without (P<0.001), indicating greater relative deprivation in those reporting glaucoma. Multivariable logistic regression showed that people in the lowest income group (<£18,000/year) were significantly more likely to report a diagnosis of glaucoma compared with any other income level (P<0.01). We observed increasing glaucoma risk across the full range of income categories, with highest risk among those of lowest income, and no evidence of a threshold effect.

CONCLUSIONS: In a large U.K. cohort, individuals reporting glaucoma had more adverse socioeconomic characteristics. Study of the mechanisms explaining these effects may aid our understanding of health inequality and will help inform public health interventions.

Original languageEnglish
Pages (from-to)1360-7
JournalEye
Volume29
Issue number10
DOIs
Publication statusPublished - Oct 2015
Externally publishedYes

Keywords

  • Adult
  • Age Distribution
  • Aged
  • Cornea
  • Cross-Sectional Studies
  • Elasticity
  • Female
  • Glaucoma
  • Humans
  • Intraocular Pressure
  • Male
  • Middle Aged
  • National Health Programs
  • Risk Factors
  • Self Report
  • Sex Distribution
  • Social Class
  • Surveys and Questionnaires
  • United Kingdom
  • Visual Acuity
  • Journal Article
  • Multicenter Study
  • Research Support, Non-U.S. Gov't

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