During 1992–2021, the period RR of urolithiasis incidence in China showed a decreasing trend, indicating a low risk of urolithiasis incidence.
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<b>Long-term trends in the incidence of urolithiasis in t</b>he <b>United States and China: a joinpoint regression and age-period-cohort analysis based on GBD 2021</b>.
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The sentences
The period effect in the United States showed a trend of initially declining then rising, with a turning point around 2009.