Impact of shifting blood donation policy from gift to honour model: staggered difference-in-differences analysis in China.

BMJ · 2026 · PMC12821159 · PMID 41565311

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an increasing trendno p-value reported

In appendix figures G1 and G2, provincial and city level analyses showed an increasing trend in total counts of blood donations, and the magnitudes of each estimate are lower than the main specifications.

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