Caesarean delivery rates and analgesia effectiveness following injections of sterile water for back pain in labour: A multicentre, randomised placebo controlled trial.

EClinicalMedicine · 2020 · PMC7486301 · PMID 32954233

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did not reach statistical significanceno p-value reported

This did not reach statistical significance and had a smaller sample in the pooled analyses ( n = 766) [6] .

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