Journal
OPHTHALMOLOGY
Volume 121, Issue 10, Pages 1949-1955Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.ophtha.2014.04.040
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Funding
- National Institutes of Health [EY06594]
- National Eye Institute
- Research to Prevent Blindness
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Purpose: To examine the association of current cigarette smoking and pack-years smoked with the incidence and progression of age-related macular degeneration (AMD) and to examine the interactions of current smoking and pack-years smoked with complement factor H (CFH, rs1061170) and age-related maculopathy susceptibility 2 (ARMS2, rs10490924) genotype. Design: A longitudinal population-based study of AMD in a representative American community. Examinations were performed every 5 years over a 20-year period. Participants: A total of 4439 participants in the population-based Beaver Dam Eye Study (BDES). Methods: Age-related macular degeneration status was determined from grading retinal photographs. Multi-state models were used to model the relationship of current smoking and pack-years smoked and interactions with CFH and ARMS2 with the incidence and progression of AMD over the entire age range. Main Outcome Measures: Incidence and progression of AMD over a 20-year period and interactions between current smoking and pack-years smoked with CFH and ARMS2 genotype. Results: The incidence of early AMD over the 20-year period was 24.4%, and the incidence of late AMD was 4.5%. Current smoking was associated with an increased risk of transitioning from minimal to moderate early AMD. A greater number of pack-years smoked was associated with an increased risk of transitioning from no AMD to minimal early AMD and from severe early AMD to late AMD. Current smoking and a greater number of pack-years smoked were associated with an increased risk of death. There were no statistically significant multiplicative interactions between current smoking or pack-years smoked and CFH or ARMS2 genotype. Conclusions: Current smoking and a greater number of pack-years smoked increase the risk of the progression of AMD. This has important health care implications because smoking is a modifiable behavior. (C) 2014 by the American Academy of Ophthalmology.
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