Sinyangwe Chomba, Graham Kirstie, Nicholas Sarala, King Rebecca, Mukupa Samuel, Källander Karin, Counihan Helen, Montague Mark, Tibenderana James, Hamade Prudence
Malaria Consortium, Mansa, Luapula Province, Zambia.
Malaria Consortium, London, United Kingdom.
PLoS One. 2016 Mar 24;11(3):e0152204. doi: 10.1371/journal.pone.0152204. eCollection 2016.
Pneumonia is the leading infectious cause of mortality in children under five worldwide. Community-level interventions, such as integrated community case management, have great potential to reduce the burden of pneumonia, as well as other diseases, especially in remote populations. However, there are still questions as to whether community health workers (CHW) are able to accurately assess symptoms of pneumonia and prescribe appropriate treatment. This research addresses limitations of previous studies using innovative methodology to assess the accuracy of respiratory rate measurement by CHWs and provides new evidence on the quality of care given for children with symptoms of pneumonia. It is one of few that assesses CHW performance in their usual setting, with independent re-examination by experts, following a considerable period of time post-training of CHWs.
In this cross-sectional mixed methods study, 1,497 CHW consultations, conducted by 90 CHWs in two districts of Luapula province, Zambia, were directly observed, with measurement of respiratory rate for children with suspected pneumonia recorded by video. Using the video footage, a retrospective reference standard assessment of respiratory rate was conducted by experts. Counts taken by CHWs were compared against the reference standard and appropriateness of the treatment prescribed by CHWs was assessed. To supplement observational findings, three focus group discussions and nine in depth interviews with CHWs were conducted.
The findings support existing literature that CHWs are capable of measuring respiratory rates and providing appropriate treatment, with 81% and 78% agreement, respectively, between CHWs and experts. Accuracy in diagnosis could be strengthened through further training and the development of improved diagnostic tools appropriate for resource-poor settings.
肺炎是全球五岁以下儿童死亡的主要感染性病因。社区层面的干预措施,如综合社区病例管理,在减轻肺炎以及其他疾病负担方面具有巨大潜力,尤其是在偏远地区人群中。然而,社区卫生工作者(CHW)是否能够准确评估肺炎症状并开出适当治疗方案仍存在疑问。本研究采用创新方法评估CHW测量呼吸频率的准确性,解决了以往研究的局限性,并为肺炎症状儿童的护理质量提供了新证据。这是少数在CHW接受培训相当长一段时间后,在其日常工作环境中评估CHW表现并由专家进行独立复查的研究之一。
在这项横断面混合方法研究中,直接观察了赞比亚卢阿普拉省两个地区的90名CHW进行的1497次咨询,并通过视频记录疑似肺炎儿童的呼吸频率测量情况。专家利用视频资料对呼吸频率进行回顾性参考标准评估。将CHW记录的次数与参考标准进行比较,并评估CHW开出的治疗方案的适当性。为补充观察结果,还与CHW进行了三次焦点小组讨论和九次深入访谈。
研究结果支持现有文献,即CHW能够测量呼吸频率并提供适当治疗,CHW与专家之间的一致性分别为81%和78%。可通过进一步培训以及开发适合资源匮乏环境的改进诊断工具来提高诊断准确性。