Socio-demographic factors modify awareness, knowledge, and perceived risk of glaucoma in rural and urban residents in Ghana: a population-based survey.

To evaluate the awareness, knowledge and the perception of risks of glaucoma among rural and urban dwellers in Ghana, a high prevalent country, in order to provide information for health promotion planning. In a population-based descriptive cross-sectional survey, 1200 adults were selected from household settings, using a two-stage cluster and simple systematic random sampling. Quantitative data collection, using interviewer-administered questionnaire, was employed. Descriptive statistics were performed using chi-square, ordinal univariate, multinomial and multivariate logistic regression models used to calculate odds ratio with 95% confidence interval (CI) to identify predictive factors. Overall, only 326 (27.2%, 95% CI = 24.6-29.7) indicated they were aware of glaucoma, whereas 331 (27.6%, 95% CI = 24.6-29.7) had ever undergone an eye screening. Low knowledge was demonstrated in 152 (46.6%, 95% CI = 41.2-52.0) and high knowledge in 99 (30.4%, 95% CI = 25.4-35.4) glaucoma-aware participants. Only 238 (19.8%, 95% CI = 17.6-22.1) of respondents presumed themselves to be at risk of developing glaucoma. Having eye examination (within the last 6 months) was positively associated with knowledge (adjusted odds ratio (AOR) = 1.413; 95% CI = 0.9-1.896) and awareness (AOR = 1.13; 95% CI = 0.938-2.449). Three levels of education (no education (AOR = 0.041; 95% CI = 0.016-0.11), primary (AOR = 0.057; 95% CI = 0.018-0.179), and middle school (AOR = 0.254; 95% CI = 0.127-0.51)) were associated with low knowledge while all levels of education were inversely associated with awareness. Perceived risk of glaucoma was also influenced by area of residence (rural (AOR = 0.344; 95% CI = 0.21-0.57)), being young (18-24 years (AOR = 4.308; 95% CI = 2.36-7.88)) and having previously undergone screening for glaucoma (AOR = 13.200; 95% CI = 5.318-32.764). The main modifiers of glaucoma awareness and knowledge were education and previous eye examination, but awareness had additional factor of area of residence. Perceived risk of glaucoma was influenced by being young and living in urban areas.

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Conflict of interest statement: The authors declared no potential conflicts of interest with respect to the research, authorship and/or publication of this article.