Mapping Lymphatic Filariasis Transmission Risk Areas
Author Information
Author(s): Sabesan Shanmugavelu, Raju Hari Kishan K, Srividya AdiNarayanan, Das Pradeep Kumar
Primary Institution: Vector Control Research Centre, Medical Complex, Indira Nagar, Pondicherry, India
Hypothesis
Can a geo-environmental risk model effectively identify areas at risk for lymphatic filariasis transmission?
Conclusion
The geo-environmental risk model developed on a GIS platform is useful for spatial delimitation purpose on a macro scale.
Supporting Evidence
- None of the 2100 children screened from the 'non-risk' area were positive for filarial antigenemia.
- 28 positive children were recorded from the 'risk' area.
- The model's sensitivity was found to be 100% and specificity 67.3%.
- The derived FTRI values ranged from 6 to 38 in the study sites.
Takeaway
This study created a map to show where lymphatic filariasis is likely to spread, helping to identify areas that need attention.
Methodology
A geo-environmental risk model was developed using GIS tools and validated through a ground truth study involving screening children for filarial antigenaemia.
Limitations
The model does not estimate the prevalence of cases but only identifies potential risk areas.
Participant Demographics
Children below 15 years of age were screened for antigenaemia positivity.
Statistical Information
P-Value
0.892
Confidence Interval
95% limits: 59.8% – 100.0%
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website