Durability assessment results suggest a serviceable life of two, rather than three, years for the current long-lasting insecticidal (mosquito) net (LLIN) intervention in Benin.
Durability assessment results suggest a serviceable life of two, rather than three, years for the current long-lasting insecticidal (mosquito) net (LLIN) intervention in Benin.
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DOI：
10.1186/1471-2334-14-69
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发表时间：
2014-02-08
影响因子：
3.7
通讯作者：
Akogbeto M
中科院分区：
文献类型：
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作者：
Gnanguenon V;Azondekon R;Oke-Agbo F;Beach R;Akogbeto M
长效驱虫蚊帐每三年发放一次，是贝宁疟疾控制战略的一项关键干预措施。然而，来自现场的数据表明，LLIN的寿命似乎因内在因素（LLIN）和外在因素而异。我们监测了LLIN耐久性的两个指标，生存率和完整性，以验证三年使用寿命的假设。与净业主的访谈被用来确定与完整性的损失相关的因素。18个月后观察到的存活率显著低于（p<0.0001）预测值（基于蚊帐持续3年的假设）。相反，它更接近基于2年LLIN使用寿命假设的预测生存率（p=0.03）。此外，近三分之一的“幸存”蚊帐的完整性严重退化，需要更换。五个因素：洗涤频率、接近洗涤用水、厨房的位置、烹饪燃料的类型和低的网维护与织物完整性的损失相关。贝宁目前长效驱虫蚊帐干预措施的两年使用寿命是一个更现实的方案假设。
LLIN distribution, every three years, is a key intervention of Benin’s malaria control strategy. However, data from the field indicate that LLIN lifespan appears to vary based on both intrinsic (to the LLIN) and extrinsic factors. We monitored two indicators of LLIN durability, survivorship and integrity, to validate the three-year-serviceable-life assumption. Interviews with net owners were used to identify factors associated with loss of integrity. Observed survivorship, after 18 months, was significantly less (p<0.0001) than predicted, based on the assumption that nets last three years. Instead, it was closer to predicted survivorship based on a two-year LLIN serviceable life assumption (p=0.03). Furthermore, the integrity of nearly one third of ‘surviving’ nets was so degraded that they were in need of replacement. Five factors: washing frequency, proximity to water for washing, location of kitchen, type of cooking fuel, and low net maintenance were associated with loss of fabric integrity. A two-year serviceable life for the current LLIN intervention in Benin would be a more realistic program assumption.