Crude and standardized prevalences of cataract and related factors in the elderly people in Northern Iran

Abstract

Purpose:This study aims to estimate the crude and standardized prevalences of cataract and its related factors among old people in northern parts of Iran.Methods:This cross-sectional study was carried out among 397 people aged 60 and older in northern Iran. Required information about treated and nontreated cataract was collected using a standard checklist. The World Standard Population was applied for direct standardization.Results:The standardized prevalence (95% confidence interval) of cataract among men, women, and all people were 27.5% (21.2–33.8), 30.9% (24.5–37.4), and 29.1% (24.6–33.6), respectively. Based on multivariate logistic regression models, age over 75 years (OR = 3.03, 95% CI: 1.21–7.59), living alone (OR = 4.89, 95% CI: 1.86‒12.86), diabetes mellitus (odds ratio = 19.10, 95% confidence interval: 8.13–44.89), rheumatoid arthritis (OR = 7.76, 95% CI: 2.32–25.99), history of infectious diseases (OR = 4.02, 95% CI: 1.35‒11.98), hypertension (OR = 3.19, 95% CI: 1.59–6.42), history of ophthalmic surgery (OR = 2.83, 95% CI: 1.29–6.16), history of sedative drug use (OR = 2.71, 95% CI: 1.35–5.47), history of vitamin supplementation use (OR = 0.21, 95% CI: 0.08–0.55), and familial history of cataract (OR = 2.81, 95% confidence interval: 1.38–5.72) increased the odds of cataract. Our multiple logistic regression model explained 53% of the variation in developing cataract.Conclusion:Our study showed that the prevalence of cataract in the study population was relatively high. We also found that aging, living alone, diabetes mellitus, rheumatoid arthritis, hypertension, infectious diseases, ophthalmic surgery, sedative drugs and familial history of cataract were the risk factors of cataract and vitamin supplementations were its protective factors.

Prevalence of Cataract and Associated Risk Factors mong Ophthalmic Outpatients at Sana'a Hospitals

“…The present study also revealed that, 18.3% of subjects presented with a positive family history for cataract whilst (81.8%) patients had no history of cataract in their families, for those who have family members who have cataract, their chance of developing the conditions are much greater, this consistent with study conducted in North Iran [28].…”

“…This study demonstrated that smoking which is modified risk factor had prominent role in development of cataract, (22.5%) of patients had history of smoking which was proved in studies conducted in Pakistan and North Iran [28].…”

Prevalence of Cataract and Associated Risk Factors mong Ophthalmic Outpatients at Sana'a Hospitals

“…The present study also revealed that, 18.3% of subjects presented with a positive family history for cataract whilst (81.8%) patients had no history of cataract in their families, for those who have family members who have cataract, their chance of developing the conditions are much greater, this consistent with study conducted in North Iran [28].…”

“…This study demonstrated that smoking which is modified risk factor had prominent role in development of cataract, (22.5%) of patients had history of smoking which was proved in studies conducted in Pakistan and North Iran [28].…”

Prevalence of Cataract and Associated Risk Factors mong Ophthalmic Outpatients at Sana'a Hospitals

“…The present study also revealed that, 18.3% of subjects presented with a positive family history for cataract whilst (81.8%) patients had no history of cataract in their families, for those who have family members who have cataract, their chance of developing the conditions are much greater, this consistent with study conducted in North Iran [28].…”

“…This study demonstrated that smoking which is modified risk factor had prominent role in development of cataract, (22.5%) of patients had history of smoking which was proved in studies conducted in Pakistan and North Iran [28].…”

Prevalence of Cataract and Associated Risk Factors mong Ophthalmic Outpatients at Sana'a Hospitals

“…The present study also revealed that, 18.3% of subjects presented with a positive family history for cataract whilst (81.8%) patients had no history of cataract in their families, for those who have family members who have cataract, their chance of developing the conditions are much greater, this consistent with study conducted in North Iran [28].…”

“…This study demonstrated that smoking which is modified risk factor had prominent role in development of cataract, (22.5%) of patients had history of smoking which was proved in studies conducted in Pakistan and North Iran [28].…”