Abstract
Purpose: :
To examine the relationship between mortality and major ocular diseases in a Population-based study
Methods: :
At baseline in 2001, the Beijing Eye Study examined 4439 subjects with an age of 40+ years. The mean age was 56.2±10.6 years (40-101 years). The participants underwent a detailed ophthalmic examination and answered questions on the socioeconomic background. In 2006, all study participants were re-invited for a follow-up examination. Rate of mortality was determined in the follow-up survey of 2006.
Results: :
Out of the 4439 subjects examined in the 2001, 3251 (73.2%) subjects returned for the follow-up examination, while 143 (3.2%) subjects were dead and 1045 (23.5%) subjects were alive however did not agree to be re-examined. In binary logistic regression analysis, mortality was significantly associated with the systemic parameters of higher age (P<0.001; Odds ratio (OR):1.07), male gender (P=0.01;OR:0.55), lower level of education (P<0.001;OR:0.65), and smoking (P=0.023;OR:1.25), and with the ocular parameters of level of diabetic-like retinopathy (P=0.036;OR:1.02), presence of angle-closure glaucoma (P=0.013;OR:3.74), and presence of non-glaucomatous optic nerve damage (P=0.027;OR:3.41). Presence of retinal vein occlusions was marginally associated with mortality (P=0.059;OR=2.59). Mortality was not significantly associated with best corrected visual acuity (P=0.14) in multivariate analysis, nor with age-related macular degeneration, open-angle glaucoma, trachoma, any type of cataract, visual field defects, intraocular pressure and refractive error.
Conclusions: :
If socioeconomic parameters, age, gender and smoking were taken into account, ocular parameters associated with an increased mortality were diabetic-like retinopathy, angle-closure glaucoma, and non-glaucomatous optic nerve damage. Retinal vein occlusions were marginally associated. Other major ocular disorders such as any form of cataract, open-angle glaucoma, age-related macular degeneration, trachoma, pterygia, and high myopia or high hyperopia were not significantly related with mortality.
Keywords: clinical (human) or epidemiologic studies: health care delivery/economics/manpower • aging • proliferative vitreoretinopathy