Intermittent preventive treatment of malaria with sulphadoxine-pyrimethamine during pregnancy in Burkina Faso: effect of adding a third dose to the standard two-dose regimen on low birth weight, anaemia and pregnancy outcomes

<p>Abstract</p> <p>Background</p> <p>Intermittent preventive treatment with sulphadoxine-pyrimethamine (IPTp-SP) is being implemented in most malaria endemic countries as a standard two-doses regimen as it reduces the risk of low birth weight (LBW) and the prevalence of...

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Main Authors: Roberfroid Dominique, Henry Marie-Claire, Huybregts Lieven, Drabo Maxime K, Tinto Halidou, Valea Innocent, Guiguemde Robert T, Kolsteren Patrick, D'Alessandro Umberto
Format: Article
Language:English
Published: BMC 2010-11-01
Series:Malaria Journal
Online Access:http://www.malariajournal.com/content/9/1/324
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author Roberfroid Dominique
Henry Marie-Claire
Huybregts Lieven
Drabo Maxime K
Tinto Halidou
Valea Innocent
Guiguemde Robert T
Kolsteren Patrick
D'Alessandro Umberto
author_facet Roberfroid Dominique
Henry Marie-Claire
Huybregts Lieven
Drabo Maxime K
Tinto Halidou
Valea Innocent
Guiguemde Robert T
Kolsteren Patrick
D'Alessandro Umberto
author_sort Roberfroid Dominique
collection DOAJ
description <p>Abstract</p> <p>Background</p> <p>Intermittent preventive treatment with sulphadoxine-pyrimethamine (IPTp-SP) is being implemented in most malaria endemic countries as a standard two-doses regimen as it reduces the risk of low birth weight (LBW) and the prevalence of maternal anaemia. Nevertheless, where the risk of infection close to delivery is high because of intense transmission, a third IPTp-SP dose may further reduce the negative effects of malaria on pregnancy outcome.</p> <p>Methods</p> <p>Pregnant women in the 2<sup>nd </sup>or 3<sup>rd </sup>trimester were randomized to receive either 2 (SP2) or 3 doses (SP3) of SP. Trained field workers paid home visits to the women for drug administration according to a predefined drug delivery schedule. Women were encouraged to attend their scheduled ANC visits and to deliver at the health facilities where the new-born was weighed. The prevalence of LBW (<2500 g), severe anaemia (Hb < 8 g/dL) and premature birth was analysed using intention-to-treat (ITT) and per-protocol (PP) analysis.</p> <p>Results</p> <p>Data from 1274 singleton pregnancies were analysed (641 in the SP3 and 633 in the SP2 group). The uptake of the intervention appeared to be low. Though the prevalence of LBW in both intervention groups was similar (adjusted Incident Rate Ratio, AIRR = 0.92, 95%CI: 0.69-1.24) in the ITT analysis, the risk of severe anaemia was significantly lower in the SP3 group compared to the SP2 group (AIRR = 0.38, 95%CI: 0.16 - 0.90). The PP analysis showed a trend of reduced risk of LBW, severe anaemia and premature delivery in the SP3 group, albeit the difference between two and three IPTp-SP did not reach statistical significance.</p> <p>Conclusion</p> <p>The risk of LBW and severe anaemia tended to be lower in the SP3 group, though this was not statistically significant, probably due to the low uptake of the intervention which reduced the power of the study. Further studies are needed for establishing whether a third SP dose has a real benefit in preventing the negative effects of malaria in pregnancy in settings where transmission is markedly seasonal.</p>
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spelling doaj.art-cac5145e5c9e401fa2cf8a4f8b41a90b2022-12-22T03:26:33ZengBMCMalaria Journal1475-28752010-11-019132410.1186/1475-2875-9-324Intermittent preventive treatment of malaria with sulphadoxine-pyrimethamine during pregnancy in Burkina Faso: effect of adding a third dose to the standard two-dose regimen on low birth weight, anaemia and pregnancy outcomesRoberfroid DominiqueHenry Marie-ClaireHuybregts LievenDrabo Maxime KTinto HalidouValea InnocentGuiguemde Robert TKolsteren PatrickD'Alessandro Umberto<p>Abstract</p> <p>Background</p> <p>Intermittent preventive treatment with sulphadoxine-pyrimethamine (IPTp-SP) is being implemented in most malaria endemic countries as a standard two-doses regimen as it reduces the risk of low birth weight (LBW) and the prevalence of maternal anaemia. Nevertheless, where the risk of infection close to delivery is high because of intense transmission, a third IPTp-SP dose may further reduce the negative effects of malaria on pregnancy outcome.</p> <p>Methods</p> <p>Pregnant women in the 2<sup>nd </sup>or 3<sup>rd </sup>trimester were randomized to receive either 2 (SP2) or 3 doses (SP3) of SP. Trained field workers paid home visits to the women for drug administration according to a predefined drug delivery schedule. Women were encouraged to attend their scheduled ANC visits and to deliver at the health facilities where the new-born was weighed. The prevalence of LBW (<2500 g), severe anaemia (Hb < 8 g/dL) and premature birth was analysed using intention-to-treat (ITT) and per-protocol (PP) analysis.</p> <p>Results</p> <p>Data from 1274 singleton pregnancies were analysed (641 in the SP3 and 633 in the SP2 group). The uptake of the intervention appeared to be low. Though the prevalence of LBW in both intervention groups was similar (adjusted Incident Rate Ratio, AIRR = 0.92, 95%CI: 0.69-1.24) in the ITT analysis, the risk of severe anaemia was significantly lower in the SP3 group compared to the SP2 group (AIRR = 0.38, 95%CI: 0.16 - 0.90). The PP analysis showed a trend of reduced risk of LBW, severe anaemia and premature delivery in the SP3 group, albeit the difference between two and three IPTp-SP did not reach statistical significance.</p> <p>Conclusion</p> <p>The risk of LBW and severe anaemia tended to be lower in the SP3 group, though this was not statistically significant, probably due to the low uptake of the intervention which reduced the power of the study. Further studies are needed for establishing whether a third SP dose has a real benefit in preventing the negative effects of malaria in pregnancy in settings where transmission is markedly seasonal.</p>http://www.malariajournal.com/content/9/1/324
spellingShingle Roberfroid Dominique
Henry Marie-Claire
Huybregts Lieven
Drabo Maxime K
Tinto Halidou
Valea Innocent
Guiguemde Robert T
Kolsteren Patrick
D'Alessandro Umberto
Intermittent preventive treatment of malaria with sulphadoxine-pyrimethamine during pregnancy in Burkina Faso: effect of adding a third dose to the standard two-dose regimen on low birth weight, anaemia and pregnancy outcomes
Malaria Journal
title Intermittent preventive treatment of malaria with sulphadoxine-pyrimethamine during pregnancy in Burkina Faso: effect of adding a third dose to the standard two-dose regimen on low birth weight, anaemia and pregnancy outcomes
title_full Intermittent preventive treatment of malaria with sulphadoxine-pyrimethamine during pregnancy in Burkina Faso: effect of adding a third dose to the standard two-dose regimen on low birth weight, anaemia and pregnancy outcomes
title_fullStr Intermittent preventive treatment of malaria with sulphadoxine-pyrimethamine during pregnancy in Burkina Faso: effect of adding a third dose to the standard two-dose regimen on low birth weight, anaemia and pregnancy outcomes
title_full_unstemmed Intermittent preventive treatment of malaria with sulphadoxine-pyrimethamine during pregnancy in Burkina Faso: effect of adding a third dose to the standard two-dose regimen on low birth weight, anaemia and pregnancy outcomes
title_short Intermittent preventive treatment of malaria with sulphadoxine-pyrimethamine during pregnancy in Burkina Faso: effect of adding a third dose to the standard two-dose regimen on low birth weight, anaemia and pregnancy outcomes
title_sort intermittent preventive treatment of malaria with sulphadoxine pyrimethamine during pregnancy in burkina faso effect of adding a third dose to the standard two dose regimen on low birth weight anaemia and pregnancy outcomes
url http://www.malariajournal.com/content/9/1/324
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