Effectiveness of health education intervention in reducing the incidence rate of porcine cysticercosis in Mbulu District, Northern Tanzania
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Date
2005
Authors
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Publisher
Sokoine University of Agriculture
Abstract
A study was conducted to investigate the effectiveness of health and pig management
education intervention in reducing the incidence rate of porcine cysticercosis caused
by larvae of Taenia solium in Mbulu District, northern Tanzania. A random sample
of 827 pig-keeping households was selected from 42 randomly selected villages to
participate in the study, which lasted for about 2 years. Baseline data were collected
on the prevalence of porcine cysticercosis based on lingual examination of live pigs;
history of human taeniosis, and related knowledge and practices based on
questionnaire interviews and observations. The health education intervention,
developed with community participation, was allocated to 21 of the 42 study villages
by randomisation. A note-based analysis was used to analyse qualitative data, while
quantitative data were analysed using Stata 8.0 for Windows. Knowledge of
smallholder pig farmers on how a pig acquires cysticercosis and how to prevent it,
improved significantly in both the intervention and control groups 6 months after the
[improvement by the intervention: 27.4% (95% CI: 7.0, 48.0) and 37.7% (95% CI:
13.0, 62.0), respectively]. The effect of the intervention 10-12 months postintervention
was not significant [improvement by the intervention: 0.7% (95% CI: -
11.0,12.0) and 1.1% (95% CI: -13.0, 15.0). There were no significant improvements
in observed practices by the intervention throughout the study period. The incidence
rate of porcine cysticercosis as measured by antigen ELISA in tracer piglets in the
intervention, showing a significant effect attributable to the intervention control group was about 1.6 that in the intervention group (95% CI: 0.928, 2.707).
’I'he effectiveness of the education intervention in reducing the incidence rate of
porcine cysticercosis was 35.9%. Educating pig farmers in Mbulu District on how to
control porcine cysticercosis would have a significant financial benefit to them
[NPV: TZS 4 034 030.4 (95% CI: 3 719 614.0, 4 368 169.0); IRR: 370%]. Health
education would have an important contribution to the control of Taenia solium
transmission, if implemented in Mbulu District. Demonstration studies are needed in
order to educate smallholder pig farmers on how to improve the traditional pig
rearing system using locally available resources
Description
PhD Thesis
Keywords
Porcine cysticercosis, Pig management education, Taenia solium, Mbulu District, Tanzania