Publications [#238733] of Frank A. Sloan

Journal Articles

1. Lee, PP; Feldman, ZW; Ostermann, J; Brown, DS; Sloan, FA, Longitudinal prevalence of major eye diseases., Archives of ophthalmology (Chicago, Ill. : 1960), vol. 121 no. 9 (September, 2003), pp. 1303-1310, ISSN 0003-9950 [12963614], [doi]
   (last updated on 2025/05/31)

   Abstract:
   

   Objective

   To describe the prevalence across time of 3 chronic eye diseases among a representative cohort of elderly subjects.

   Study design

   Longitudinal observation of Medicare claims. Population A random sample of Medicare beneficiaries 65 years and older, nationally representative at baseline.

   Main outcome measures

   Diagnosis of diabetic retinopathy, glaucoma, and age-related macular degeneration.

   Methods

   Beneficiaries were followed from 1991 to 1999 unless mortality or enrollment in a health maintenance organization for 6 or more months in a year intervened. Claims data were analyzed for the presence of codes from the International Classification of Diseases, Ninth Revision, Clinical Modification, indicating 1 of the 3 conditions. Transitions between severity stages were also evaluated.

   Results

   Of 20 325 beneficiaries in 1991, 10 476 were available for analysis in 1999. The prevalence of diabetes mellitus increased from 14.5% in 1991 to 25.6% by 1999, with diabetic retinopathy among persons with diabetes mellitus increasing from 6.9% to 17.4%. Primary open-angle glaucoma increased from 4.6% to 13.8%. The percentage of glaucoma suspects increased from 1.5% to 6.5%, as did the percentage of narrow-angle glaucoma (0.7%-2.7%). The prevalence of age-related macular degeneration increased from 5.0% to 27.1%. Overall, the proportion of subjects with at least 1 of these 3 diseases increased from 13.4% to 45.4%.

   Conclusions

   The clinical diagnosis of major chronic eye diseases associated with aging increased dramatically in a longitudinal sample. At the end of 9 years, nearly half of the surviving Medicare beneficiaries had at least 1 of these diseases.