Prevalence and Outcome of Operative Vaginal Delivery among Mothers Who Gave Birth at Jimma University Medical Center, Southwest Ethiopia.

J Pregnancy · 2018 · PMC6076915 · PMID 30105096

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a decreasing trendno p-value reported

But currently studies show that there is a decreasing trend of instrumental deliveries and is a major concern in health care system all over the world.

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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.