Abstract
Objectives
To determine the productivity of village-based ‘key informants’ (KIs) in identifying blind children.
Materials and methods
Ngabu subdistrict (population 101 000) of Chikwawa district was divided into KI catchment areas. KIs, selected by local village leaders, were trained to register children reported to be blind or with severe visual impairment. These children were clinically assessed at designated centres.
Results
In total, 44 KIs were selected and trained to cover 196 villages in Ngabu. They identified and referred 151 children, 37 of whom were blind (presenting vision <3/60 best eye). Overall, village leaders tended to choose female KIs (80%) compared to male KIs (20%); however, male KIs tended to be more productive, identifying 4.22 children each (compared to 3.23 for female KIs). Male KIs were 2.7 times more likely to identify blind children compared to female KIs. Only 25% of all identified blind children of school going age were in school.
Conclusions
KIs may be effective in identifying blind children in the community; however, additional work is needed to determine who will be the most effective KI in a community and whether gender roles will limit interpretation of findings from KIs activities.
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References
World Health Organisation. Prevention of Blindness and Deafness. Global Initiative for Elimination of Avoidable Blindness. WHO: Geneva, 2000 WHO/PBL/9761 Rev2.
Gilbert C, Foster A . Childhood blindness in the context of VISION 2020—the right to sight. Bull World Health Organ 2001; 79(3): 227–232.
Van Dijk K, Courtright P . Barriers to surgical intervention among blind and low vision children in Malawi. Vis Impair Res 2000; 2(2): 75–79.
Muhit M, Gilbert CE, International Centre for Eye Health, London school of Hygiene and Tropical Medicine. Key informant method for identifying children with blindness and severe visual impairment in the Community. Reaching the unreached. Unpublished data, 2004.
Muhit MA . Finding blind children: key informant methodology. J Comm Eye Health 2007; 62(20): 30–31.
Muhit MA, Shah SP, Gilbert CE, Hartley SD, Foster A . The key informant method: a novel means of ascertaining blind children in Bangladesh. Br J Ophthalmol 2007; 91: 995–999.
Muhit MA, Shah S, Gilbert CE . Causes of severe visual impairment and blindness in Bangladesh: a study of 1935 children. Br J Ophthalmol 2007; 91(8): 1000–1004.
National Statistical Office. Malawi Housing and Population Census 1998. Zomba, Malawi.
Gilbert CE . Childhood Blindness: a new form for recording causes of visual loss in children. Bull World Health Organ 1993; 71: 485–489.
Acknowledgements
We thank Steve Kanjoloti, ophthalmic clinical officer from Chikwawa district, Malawi for helping in data collection, Adrienne Burrough, funding manager for ICEH and finally Task Force Sight and Life (TFSL) for agreeing to fund this research.
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Kalua, K., Patel, D., Muhit, M. et al. Productivity of key informants for identifying blind children: evidence from a pilot study in Malawi. Eye 23, 7–9 (2009). https://doi.org/10.1038/eye.2008.49
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DOI: https://doi.org/10.1038/eye.2008.49
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