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首页> 外文期刊>The American Journal of Tropical Medicine and Hygiene >Impact of indoor residual spraying with lambda-cyhalothrin on malaria parasitemia and anemia prevalence among children less than five years of age in an area of intense, year-round transmission in Malawi
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Impact of indoor residual spraying with lambda-cyhalothrin on malaria parasitemia and anemia prevalence among children less than five years of age in an area of intense, year-round transmission in Malawi

机译：在马拉维一个密集，全年传播的地区，室内残留喷洒氟氯氰菊酯对五岁以下儿童的疟疾寄生虫血症和贫血患病率的影响

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摘要

Little is known about the impact of indoor residual spraying (IRS) in areas with intense malaria transmission such as sub-Saharan Africa. In Malawi, IRS with lambda-cyhalothrin has been applied annually in an area of intense year-long transmission since 2007. We evaluated the impact of IRS on parasitemia and anemia prevalence in children less than five years of age by using a cross-sectional household survey conducted in 2009, six months after the second IRS spray round. We measured malaria parasitemia and anemia (hemoglobin level < 11 g/dL) in 899 children less than five years of age and used binomial regression to assess the impact of IRS by comparing children living in a household sprayed with IRS (direct IRS) with those in a household not sprayed with IRS, but in an IRS area (indirect IRS) and those living in a household not sprayed with IRS and not in an IRS area (no IRS). In the IRS area, 77% of households reported receiving IRS. Adjusting for bed net use, house construction, and socioeconomic status, we found that receiving direct IRS and indirect IRS were significantly associated with a 33% (95% confidence interval [CI] = 1-54%) and 46% (95% CI = 20-64%) reduction in parasitemia and a 21% (95% CI = 4-34%) and 30% (95% CI = 12-45%) reduction in anemia prevalence, respectively.
机译：人们对疟疾传播严重的地区（例如撒哈拉以南非洲）的室内残留喷雾（IRS）的影响知之甚少。在马拉维，自2007年以来，每年都有IBS含氟氯氰菊酯的药物在长达一年的密集传播地区使用。我们使用横断面家庭评估了IRS对五岁以下儿童寄生虫病和贫血患病率的影响这项调查是在2009年进行的，即第二轮IRS喷雾轮之后的六个月。我们测量了899岁以下5岁以下儿童的疟疾寄生虫血症和贫血（血红蛋白水平<11 g / dL），并通过二项回归法比较了居住在使用IRS（直接IRS）喷雾的家庭中的孩子与那些孩子的疟疾寄生虫和贫血的患病率在未喷涂IRS的家庭中，而是在IRS区域（间接IRS）中，以及未喷涂IRS且不在IRS区域中的家庭（无IRS）中的家庭。在IRS地区，有77％的家庭报告接受了IRS。调整床网使用，房屋建设和社会经济状况，我们发现接受直接IRS和间接IRS与33％（95％置信区间[CI] = 1-54％）和46％（95％CI）显着相关=减少了20％至64％的寄生虫病，贫血患病率分别降低了21％（95％CI = 4-34％）和30％（95％CI = 12-45％）。

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