Familial Risks of Glaucoma in the Population of Sweden

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Abstract

Background: Glaucoma has a familial component but detailed data on the modification of familial risks are lacking. The aim of the study was to determine detailed familial risks for medically diagnosed glaucoma based on nationwide hospital and population records. Methods: Subjects were obtained from the Multigeneration Register, contains the Swedish population in families, and glaucoma patients were identified from the Hospital Discharge Register (1987-2012) and the Outpatient Register (2001-2012). Standardized incidence ratios (SIRs) were calculated as the ratio of observed to expected number of cases. Results: Familial risks were increased in both males and females. Concordant familial risks were generally higher than discordant risks. For example, familial concordant risks were SIR=3.25 (95% CI, 3.16-3.35) for primary open-angle glaucoma, 9.93 (95% CI, 7.30-13.22) for primary angle-closure glaucoma. Very high familial risks were observed if two or more relatives were affected, for example, the high risk group of multiple affected siblings with an SIR >20. The spouse risk was modestly increased 1.20. Conclusions and Relevance:: Family history of glaucoma is a strong predictor for glaucoma, and is a potential useful tool in clinical risk assessment. Our data emphasize the contribution of familial factors to the glaucoma.

Original languageEnglish
Pages (from-to)802-806
JournalJournal of Glaucoma
Volume27
Issue number9
Early online date2018 Jun 26
DOIs
Publication statusPublished - 2018 Sep

Subject classification (UKÄ)

  • Ophthalmology

Keywords

  • affected family members
  • glaucoma
  • heritability

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