title: The Ibadan glaucoma study.
abstract: To obtain epidemiological data on the prevalence and risk factors for open angle glaucoma in hospital workers of African origin, and investigate appropriate methods of a rapid, cost-effective screening procedure for glaucoma. A cross-sectional study of workers in the University College Hospital (UCH) Ibadan, using a structured questionnaire for data collection. The variables available for data analysis include workers demographic characteristics, visual acuity, pupil status, intraocular pressure, cup-disc ratio, central visual fields, family history of glaucoma, chronic diseases such as hypertension and diabetes. The data was analysed with EPI-INFO version 6.02 for simple analysis, while the SPSS package was used for multivariate analysis. A total of two thousand, one hundred and nine (2,109) UCH workers participated in the screening exercise for glaucoma. A high majority of the workers 1794 (85.1%) were negative to the diagnosis of glaucoma, while the remaining 315 (14.9%) were suspected to have glaucoma out of which 57 (2.7%) were confirmed as definite glaucoma cases. The prevalence of glaucoma among UCH workers was 27 per 1000, 95%, confidence interval = 20 per 1000, 35 per 1000. Factors associated with glaucoma were relative afferent pupillary defect, cup-disc ratio greater than 0.7, intraocular pressure, family history of glaucoma and the presence of chronic diseases such as diabetes. The left eye appears to have a higher probability of ocular problems compared with the right eye. The prevalence of glaucoma among hospital workers was 2.7% The cup-disc ratio appears to be a better diagnostic tool for glaucoma since it gives the best positive predictive value (with a cut-off point of 0.7) than all other variables.
authors.affiliation: Department of Ophthalmology, University College Hospital, Ibadan, Nigeria. baiyeroju@yahoo.com
authors.forename: A M
authors.initials: AM
authors.lastname: Agbeja-Baiyeroju
authors.forename: C O
authors.initials: CO
authors.lastname: Bekibele
authors.forename: E A
authors.initials: EA
authors.lastname: Bamgboye
authors.forename: F
authors.initials: F
authors.lastname: Omokhodion
authors.forename: T S
authors.initials: TS
authors.lastname: Oluleye
mesh_terms: D000328:Adult; D017677:Age Distribution; D000368:Aged; D003362:Cost-Benefit Analysis; D003941:Diagnostic Techniques, Ophthalmological / Q000191:economics; D005260:Female; D005902:Glaucoma, Open-Angle / Q000175:diagnosis / Q000453:epidemiology* / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009549:Nigeria / Q000453:epidemiology; D011237:Predictive Value of Tests; D015995:Prevalence; D012307:Risk Factors; D017678:Sex Distribution