Moreover, it appears that also pancreatic cancer exhibits a decreasing trend over time in terms of the standardized incidence rate per 100,000 person-years, and is thus assigned to the same cluster as lung & tracheal cancer in the cases of 3 and 2 clusters.
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The sentences
However, based on the standardized data, it can be observed that most standardized incidence rates per 100,000 person-years of the most common cancers in this age group exhibit a slightly increasing trend over time.
Indeed, then breast cancer is assigned to the same cluster as other cancers, whose standardized incidence rate per 100,000 person-years demonstrates an increasing trend over time.