What will happen if we do nothing to control trachoma: health expectancies for blinding trachoma in southern Sudan.

Ngondi, J. M., Matthews, F. E., Reacher, M. H., King, J., Brayne, C., Gouda, H. and Emerson, P. M. (2009) What will happen if we do nothing to control trachoma: health expectancies for blinding trachoma in southern Sudan.. PLoS Neglected Tropical Diseases, 3 3: e396.1-e396.8. doi:10.1371/journal.pntd.0000396

Author Ngondi, J. M.
Matthews, F. E.
Reacher, M. H.
King, J.
Brayne, C.
Gouda, H.
Emerson, P. M.
Title What will happen if we do nothing to control trachoma: health expectancies for blinding trachoma in southern Sudan.
Journal name PLoS Neglected Tropical Diseases   Check publisher's open access policy
ISSN 1935-2727
Publication date 2009-03-17
Year available 2009
Sub-type Article (original research)
DOI 10.1371/journal.pntd.0000396
Open Access Status DOI
Volume 3
Issue 3
Start page e396.1
End page e396.8
Total pages 9
Place of publication San Francisco, CA United States
Publisher Public Library of Science
Language eng
Formatted abstract
Background: Uncontrolled trachoma is a leading cause of blindness. Current global trachoma burden summary measures are presented as disability adjusted life years but have limitations due to inconsistent methods and inadequate population-based data on trachomatous low vision and blindness. We aimed to describe more completely the burden of blinding trachoma in Southern Sudan using health expectancies.

Methodology/Principal Findings: Age and gender specific trachomatous trichiasis (TT) prevalence was estimated from 11 districts in Southern Sudan. The distribution of visual acuity (VA) in persons with TT was recorded in one district. Sudan life tables, TT prevalence, and VA were used to calculate Trichiasis Free Life Expectancy (TTFLE) and Trichiasis Life Expectancy (TTLE) using the Sullivan method. TTLE was broken down by VA to derive TTLE with normal vision, TTLE with low vision, and TTLE with blindness. Total life expectancy at birth in 2001 was 54.2 years for males and 58.1 for females. From our Sullivan models, trichiasis life expectancy at the age of 5 years was estimated to be 7.0 (95% confidence interval [CI] = 6.2-7.8) years (12% [95% CI = 11-14] of remaining life) for males and 10.9 (95% CI = 9.9-11.9) years (18% [95% CI = 16-20] of remaining life) for females. Trichiasis life expectancy with low vision or blindness was 5.1 (95% CI = 3.9-6.4) years (9% [95% CI = 7-11] of remaining life) and 7.6 (95% CI = 6.0-9.1) years (12% [95% CI = 10-15] of remaining life) for males and females, respectively. Women were predicted to live longer and spend a greater proportion of their lives with disabling trichiasis, low vision, and blindness compared to men.

The study shows the future burden associated with doing nothing to control trachoma in Southern Sudan, that is, a substantial proportion of remaining life expectancy spent with trichiasis and low vision or blindness for both men and women, with a disproportionate burden falling on women.
Keyword Blindness
Cross Sectional Studies
Health Priorities
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Public Health Publications
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Citation counts: TR Web of Science Citation Count  Cited 3 times in Thomson Reuters Web of Science Article | Citations
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Created: Thu, 14 Nov 2013, 18:31:06 EST by Hebe Gouda on behalf of School of Public Health