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Recent Food Shortage Is Associated with Leprosy Disease in Bangladesh: A Case-Control Study

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  • Sabiena G Feenstra
  • Quamrun Nahar
  • David Pahan
  • Linda Oskam
  • Jan Hendrik Richardus

Abstract

Background: Leprosy is remaining prevalent in the poorest areas of the world. Intensive control programmes with multidrug therapy (MDT) reduced the number of registered cases in these areas, but transmission of Mycobacterium leprae continues in most endemic countries. Socio-economic circumstances are considered to be a major determinant, but uncertainty exists regarding the association between leprosy and poverty. We assessed the association between different socio-economic factors and the risk of acquiring clinical signs of leprosy. Methods and Findings: We performed a case-control study in two leprosy endemic districts in northwest Bangladesh. Using interviews with structured questionnaires we compared the socio-economic circumstances of recently diagnosed leprosy patients with a control population from a random cluster sample in the same area. Logistic regression was used to compare cases and controls for their wealth score as calculated with an asset index and other socio-economic factors. The study included 90 patients and 199 controls. A recent period of food shortage and not poverty per se was identified as the only socio-economic factor significantly associated with clinical manifestation of leprosy disease (OR 1.79 (1.06–3.02); p = 0.030). A decreasing trend in leprosy prevalence with an increasing socio-economic status as measured with an asset index is apparent, but not statistically significant (test for a trend: OR 0.85 (0.71–1.02); p = 0.083). Conclusions: Recent food shortage is an important poverty related predictor for the clinical manifestation of leprosy disease. Food shortage is seasonal and poverty related in northwest Bangladesh. Targeted nutritional support for high risk groups should be included in leprosy control programmes in endemic areas to reduce risk of disease. Author Summary: Although intensive control programs reduced the prevalence of leprosy worldwide, new cases of this infectious disease are still detected in several of the poorest areas of the world. Therefore the disease is known as a disease of poverty. To be able to control the disease it is important to know which aspects of poverty play a role in transmission and acquiring clinical signs of disease. In this study socio-economic circumstances of recently diagnosed leprosy patients were compared with those of a control population in the poverty stricken northwest area of Bangladesh where leprosy is common. A recent period of food shortage was the only socio-economic factor that was found related to leprosy disease in this study and not poverty as such. Food shortage is seasonal and poverty related in northwest Bangladesh, while malnutrition is known to lower immunity and make people more vulnerable to infectious diseases. Therefore it was concluded that malnutrition as an aspect of poverty played an important role in the development of the clinical signs of leprosy. We therefore recommend that nutritional support for high risk groups should be included in leprosy control programmes to reduce risk of disease in areas where leprosy is common.

Suggested Citation

  • Sabiena G Feenstra & Quamrun Nahar & David Pahan & Linda Oskam & Jan Hendrik Richardus, 2011. "Recent Food Shortage Is Associated with Leprosy Disease in Bangladesh: A Case-Control Study," PLOS Neglected Tropical Diseases, Public Library of Science, vol. 5(5), pages 1-7, May.
  • Handle: RePEc:plo:pntd00:0001029
    DOI: 10.1371/journal.pntd.0001029
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    Cited by:

    1. Salma Oktaria & Norma Sofisa Hurif & Wardiansyah Naim & Hok Bing Thio & Tamar E C Nijsten & Jan Hendrik Richardus, 2018. "Dietary diversity and poverty as risk factors for leprosy in Indonesia: A case-control study," PLOS Neglected Tropical Diseases, Public Library of Science, vol. 12(3), pages 1-15, March.
    2. Inge Wagenaar & Lisanne van Muiden & Khorshed Alam & Robert Bowers & Md Anwar Hossain & Kolpona Kispotta & Jan Hendrik Richardus, 2015. "Diet-Related Risk Factors for Leprosy: A Case-Control Study," PLOS Neglected Tropical Diseases, Public Library of Science, vol. 9(5), pages 1-15, May.
    3. Anuj Tiwari & Pramilesh Suryawanshi & Akash Raikwar & Mohammad Arif & Jan Hendrik Richardus, 2018. "Household expenditure on leprosy outpatient services in the Indian health system: A comparative study," PLOS Neglected Tropical Diseases, Public Library of Science, vol. 12(1), pages 1-13, January.
    4. Puneet Anantharam & Lisa E Emerson & Kassahun D Bilcha & Jessica K Fairley & Annisa B Tesfaye, 2021. "Undernutrition, food insecurity, and leprosy in North Gondar Zone, Ethiopia: A case-control study to identify infection risk factors associated with poverty," PLOS Neglected Tropical Diseases, Public Library of Science, vol. 15(6), pages 1-11, June.

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