Indirect assessment of hemorrhoid incidence using invasive treatment data in Japan: A 5-year study based on nationwide health insurance claims.

Trends in the annual number rate of ITH per 100 000 person‐years from 2018 to 2022 The age‐adjusted ITH number across all age groups per 100 000 person‐years showed a decreasing annual trend for males, an increasing annual trend for females, and eventually a decreasing trend for both sexes (RR = 0.993, 0.984, and 1.003 for both sexes, males, and females, respectively; p < 0.0167) (Table 1 ).

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The study also highlighted annual decreasing trends in ITH among males and the elderly of both sexes in contrast to an increasing trend among females, particularly among young and middle‐aged cohorts.

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