PURPOSE: The relationships between reproductive risk factors, including use of hormone replacement therapy and oral contraceptives and severity of age-related maculopathy (ARM) among postmenopausal women were evaluated. We hypothesized that exposure to endogenous or exogenous estrogens would be associated with a reduced risk of advanced ARM. DESIGN: Cross-sectional study. METHODS: The 394 subjects were postmenopausal women with ARM. Logistic regression analysis was used to compare the effects of several reproductive factors across two groups: 193 subjects with nonadvanced ARM and 201 subjects with advanced ARM. RESULTS: Women with ARM who had used postmenopausal estrogen therapy in the past had significantly lower odds of advanced ARM than nonusers, after controlling for other known and potential risk factors (odds ratio [OR] = 0.5, 95% confidence interval [CI] = 0.30 to 0.98). Older age at menarche was associated with increased odds of advanced ARM (OR = 1.16, 95% CI = 1.00 to 1.35). CONCLUSIONS: These findings suggest that exposure to exogenous estrogens may have a beneficial effect of reducing the risk of advanced types of ARM in postmenopausal women with ARM. Few therapeutic or preventive measures currently exist for ARM; therefore, these results deserve further evaluation.
PURPOSE: The relationships between reproductive risk factors, including use of hormone replacement therapy and oral contraceptives and severity of age-related maculopathy (ARM) among postmenopausal women were evaluated. We hypothesized that exposure to endogenous or exogenous estrogens would be associated with a reduced risk of advanced ARM. DESIGN: Cross-sectional study. METHODS: The 394 subjects were postmenopausal women with ARM. Logistic regression analysis was used to compare the effects of several reproductive factors across two groups: 193 subjects with nonadvanced ARM and 201 subjects with advanced ARM. RESULTS:Women with ARM who had used postmenopausal estrogen therapy in the past had significantly lower odds of advanced ARM than nonusers, after controlling for other known and potential risk factors (odds ratio [OR] = 0.5, 95% confidence interval [CI] = 0.30 to 0.98). Older age at menarche was associated with increased odds of advanced ARM (OR = 1.16, 95% CI = 1.00 to 1.35). CONCLUSIONS: These findings suggest that exposure to exogenous estrogens may have a beneficial effect of reducing the risk of advanced types of ARM in postmenopausal women with ARM. Few therapeutic or preventive measures currently exist for ARM; therefore, these results deserve further evaluation.
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