Incidence, trends and risk factors for obstetric massive blood transfusion in China from 2012 to 2019: an observational study.

BMJ Open · 2021 · PMC8479942 · PMID 34588243

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a decreasing trendno p-value reported

From 2012 to 2019, the MMR due to obstetric haemorrhage with MBT in nationwide hospitals showed a decreasing trend (decreased by 68.8%), and the magnitude of decrease was larger than that in the population-based obstetric haemorrhage MMR reported by National Maternal Death Monitoring during the same period (54.6%). 32 On the other hand, the uterus can be saved by timely MBT.

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an increasing trendno p-value reported

Results Obstetric MBT occurred in 27 626 cases, corresponding to an incidence of 23.68 per 10 000 maternities, which exhibited an increasing trend in China during 2012–2019 (14.03–29.59 per 10 000 maternities, p for trend <0.001).

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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.