Are there synergies from combining hygiene and sanitation promotion campaigns: Evidence from a large-scale cluster-randomized trial in rural Tanzania.

PLoS One · 2017 · PMC5665426 · PMID 29091726

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borderline significantno p-value reported

Overall, we find no improvements in handwashing with soap after fecal contact, but small (borderline significant) increases in observed handwashing practice before preparation of foods.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.