BACKGROUND: The incidence and survival of oral squamous cell carcinoma (OSCC) patients have increased in recent years. Understanding their long-term survival aspects is essential for optimal treatment and follow-up planning. Almost one in five cancers diagnosed occurs nowadays in individuals with a previous diagnosis of cancer. METHODS: Patients diagnosed with primary OSCC during 1953-2015 were retrieved from the Finnish Cancer Registry. Both standardized incidence ratios (SIR) and excess absolute risk (EAR) per 1,000 person-years at risk (PYR) of second primary cancer (SPC) were calculated relative to the general population. RESULTS: Among 6,602 first primary OSCC patients there were 640 (10%) SPCs. The SIR for

Introduction: Hysterectomy has been one of the most common surgical procedures in women in Finland. We studied the population-based trends of hysterectomy and its' indications from 1986 to 2017. Material and methods: A retrospective population-based cohort was created from the CareRegister for Health Care by identifying women who had a hysterectomy from 1986 to 2017 and calculating the number of women from the Digital and Population Data Services Agency. We estimated the number and incidence of hysterectomy by period and age as well as by indication.We considered the primary diagnosis at the time of surgery as the indication of hysterectomy.

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