ArticleInternational journal of epidemiology2016
The impact of mass deworming programmes on schooling and economic development: an appraisal of long-term studies.
Article in International journal of epidemiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
9 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Public health deworming programmes for soil-transmitted helminths in children living in endemic areas.The Cochrane database of systematic reviews · 2019Pooled it
- Article
- Resolving "worm wars": An extended comparison review of findings from key economics and epidemiological studies.PLoS neglected tropical diseases · 2019Review
- The long run impact of early childhood deworming on numeracy and literacy: Evidence from Uganda.PLoS neglected tropical diseases · 2019Article
- Extending the global worm index and its links to human development and child education.PLoS neglected tropical diseases · 2018Article
- Empowering Girls and Women through Hookworm Prevention.The American journal of tropical medicine and hygiene · 2018Article
- Prospects for elimination of soil-transmitted helminths.Current opinion in infectious diseases · 2017Review
- Response: Development economics-time to improve research methods.International journal of epidemiology · 2016Article
- Commentary: Assessing long-run deworming impacts on education and economic outcomes: a comment on Jullien, Sinclair and Garner (2016).International journal of epidemiology · 2016Article
Corrections and comments
- Commented on by
- Commented on by
- Commented on by
- Commented on by
- Commented on by
- Commented on by
- Commented on by
- Commented on by
- Commented on by
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: Documents from advocacy and fund-raising organizations for child mass deworming programmes in low- and middle-income countries cite unpublished economic studies claiming long-term effects on health, schooling and economic development. Methods: To summarize and appraise these studies, we searched for and included all long-term follow-up studies based on cluster-randomized trials included in a 2015 Cochrane review on deworming. We used Cochrane methods to assess risk of bias, and appraised the credibility of the main findings. Where necessary we contacted study authors for clarifications. Results: We identified three studies (Baird 2016, Ozier 2016 and Croke 2014) evaluating effects more than 9 years after cluster-randomized trials in Kenya and Uganda. Baird and Croke evaluate short additional exposures to deworming programmes in settings where all children were dewormed multiple times. Ozier evaluates potential spin-off effects to infants living in areas with school-based deworming. None of the studies used pre-planned protocols nor blinded the analysis to treatment allocation. Conclusions: In the context of reliable epidemiological methods, all three studies are at risk of substantial methodological bias. They therefore help in generating hypotheses, but should not be considered to provide reliable evidence of effects.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.