Positive values indicate an increasing trend, while negative values signify a decreasing trend.
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Time trends in multiple myeloma incidence and mortality across the BRICS from 1992 to 2021 and projection to 2046.
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The sentences
In China, the period effects showed improvement during 2002–2006, while the rest of the past two decades exhibited an adverse trend.
Positive values indicate an increasing trend, while negative values signify a decreasing trend.