Frey Claudia, Traoré Corneille, De Allegri Manuela, Kouyaté Bocar, Müller Olaf
Department of Tropical Hygiene and Public Health, Ruprecht-Karls-University Heidelberg, INF 324, 69124 Heidelberg, Germany.
Malar J. 2006 Aug 14;5:70. doi: 10.1186/1475-2875-5-70.
Insecticide-treated bed nets (ITNs) are known to be highly effective in reducing malaria morbidity and mortality. The effectiveness of ITNs is largely influenced by behavioural factors and not much is known regarding such factors under programme conditions.
This descriptive study was nested into a large ITN effectiveness study in rural Burkina Faso. During two cross-sectional surveys in the dry and rainy season of 2003, random samples of young children from nine representative villages (n = 180 per survey) were investigated for compliance with ITN protection and related behaviour. Data were collected through direct observations and through interviews with mothers.
ITNs were perceived as very important for protection against mosquitoes and malaria particularly during the rainy season, but there were problems with their use during the dry season. Young children usually slept with their mother under the ITN and self-reported compliance was 66% and 98% during dry and rainy season, respectively (confirmed by direct observation in 34% and 79%, respectively). Important reasons for low compliance during the dry season were high temperatures inside houses and problems related to changing sleeping places during the night.
Under programme conditions, compliance with ITN protection in young children is sufficient during the rainy season, but is rather low during the hot and dry season. Greater emphasis needs to be placed on information/education efforts to make people aware of the fact that the risk of contracting malaria may persist throughout the year.
已知经杀虫剂处理的蚊帐(ITN)在降低疟疾发病率和死亡率方面非常有效。ITN的有效性在很大程度上受行为因素影响,而在项目实施条件下,关于此类因素的了解并不多。
这项描述性研究嵌套于布基纳法索农村的一项大型ITN有效性研究中。在2003年旱季和雨季的两次横断面调查中,对来自9个代表性村庄的幼儿随机样本(每次调查n = 180)进行了ITN保护依从性及相关行为的调查。数据通过直接观察和与母亲访谈收集。
ITN被认为对预防蚊虫叮咬和疟疾非常重要,尤其是在雨季,但旱季使用时存在问题。幼儿通常与母亲一起睡在ITN下,自我报告的依从性在旱季和雨季分别为66%和98%(直接观察确认分别为34%和79%)。旱季依从性低的重要原因是房屋内温度高以及夜间更换睡眠地点的问题。
在项目实施条件下,幼儿在雨季对ITN保护的依从性足够,但在炎热干燥季节相当低。需要更加重视信息/教育工作,使人们意识到感染疟疾的风险可能全年存在。