Evidence Aid newsletter: 5 October 2021

Here is the latest newsletter from Evidence Aid, containing information on our evidence collections and projects. Please share it with anyone who might be interested. If they would like to receive these newsletters directly, they should contact me (callen@evidenceaid.org). Anyone with questions about our work should also contact me.


The first of our three webinars for the World Health Organization Kobe Centre, based on the WHO Guidance on Research Methods for Health Emergency and Disaster Risk Management is scheduled for 7 October, between 14.00-15.00 BST. It will provide an introduction and background to the series, with panel members Emily Chan, Mike Clarke, Ryoma Kayano and Virginia Murray who will discuss:

  • improving the quality of research in Health EDRM
  • improving the quality of policy, practice and guidance supported by evidence from this research
  • increasing research capacity
  • strengthening collaboration and engagement between the research community and policymakers, practitioners and stakeholders
  • the Health EDRM Framework

REGISTER HERE: https://us02web.zoom.us/webinar/register/WN_2uZV9aVDQeGuEC785jndQw

We continue work on our evidence collections and some of our recent summaries of systematic reviews are

Barriers to influenza vaccination in our COVID-19 collection.

Research into why people are reluctant to be vaccinated against influenza might provide useful information for policy makers planning vaccination programmes for COVID-19. This review found that barriers include psychological (e.g. potential benefits and harms associated with vaccination), physical (e.g. unhealthy lifestyle factors), contextual (e.g. difficulty in acquiring vaccines) and sociodemographic (e.g. living alone).

Risk factors for posttraumatic stress disorder in the Earthquake collection.

Posttraumatic stress disorder (PTSD) is a mental health condition experienced by some individuals who have survived traumatic events, such as earthquakes. A total of 130 potential risk factors were identified in this review, of which 57 showed a significant association with PTSD. Although many of these risk factors cannot be modified, the authors concluded that secondary prevention strategies should focus on risk assessment, understanding pathogenesis and early intervention.

Mobile clinics in humanitarian emergencies in the Resilient Health Systems collection.

Humanitarian emergencies and disasters place a strain on health systems and healthcare workers. This review found some limited evidence that mobile clinics may be relevant or appropriate, efficient and effective and may increase service coverage in humanitarian settings. The authors concluded that mobile clinics are better suited to outpatient and preventative services and are unlikely to sustain the delivery of comprehensive curative care.

Higher ambient temperature and poor outcomes in pregnancy in the Humanitarian Impact of Climate Change collection.

Climate change is leading to increases in ambient temperature and there are concerns that exposure to high ambient temperatures in pregnancy might increase the risk of preterm birth, low birth weight and stillbirths. This review found that exposure to high ambient temperatures does increase the likelihood of stillbirth and pre-term birth and that the effect of high ambient temperatures on pregnancy outcomes might be largest in low- and middle-income countries.

What else this month?

  • Our COVID-19 collection now includes 560 short, plain language summaries covering 876 systematic reviews. All the summaries are available in English, with most also available in Arabic, Chinese, French, German, Italian, Portuguese and Spanish.
  • Our new Resilient Health Systems collection now contains 17 summaries in English and most are also available in French, Portuguese and Spanish.
  • Summaries in our Earthquake collection are now being translated into Japanese.
  • We will launch a fortnightly e-mail bulletin containing some of our summaries in October.

Social media

We promote our summaries and the work of Evidence Aid generally through Twitter (@Evidence Aid), Facebook (Evidence Aid – page and group) and Instagram (evidenceaid). Please follow us and share the posts.


We are very grateful to the many volunteers who help Evidence Aid. They contribute to searching, screening and downloading reviews preparing and writing summaries, providing web support and advising on translations.

The Evidence Aid team

Information about the Evidence Aid staff and interns is available on our website.