Increase in Occurrence of Attention Deficit Hyperactivity Disorder Differs by Age Group and Gender-Finnish Nationwide Register Study.

Introduction: This study describes epidemiology of attention deficit hyperactivity disorder (ADHD) and use of ADHD medication across all age groups in Finland.

Methods: This retrospective study is based on nationwide registers in Finland. The study population included individuals with ADHD diagnosis and/or an ADHD medication record at least once during 2015-2020.

Elevated Levels of Serum Thymidine Kinase 1 Predict Poor Survival for Patients with Metastatic Prostate Cancer.

Background And Objective: Prostate-specific antigen (PSA) is of limited value as a surrogate marker for overall survival (OS) in prostate cancer (PC). Serum thymidine kinase 1 (sTK1) is an enzyme expressed by actively dividing cells. Our aim was to evaluate the value of sTK1 as prognostic biomarker in metastatic hormone-sensitive PC (mHSPC) and metastatic castration-resistant PC (mCRPC).

Healthcare Resource Utilization and Associated Costs During the First 5 Years After Diagnosis and at the End of Life: A Nationwide Cohort Study of Patients with Multiple Myeloma in Finland.

Background: The burden associated with the treatment of patients with multiple myeloma (MM) is expected to increase due to the aging population. Thus, policymakers and clinicians need a holistic view of the healthcare resource use (HCRU) and costs associated with MM and its treatment for informed decision making. However, nationwide information on HCRU and costs due to MM is scarce in Finland.

Symptomatic osteonecrosis in children treated for Hodgkin lymphoma: A population-based study in Sweden, Finland, and Denmark.

Background: Osteonecrosis (ON) is a potentially disabling skeletal complication of cancer treatment. Although symptomatic osteonecrosis (sON) is well-known in acute lymphoblastic leukemia (ALL), with an incidence around 6%, studies on sON in pediatric Hodgkin lymphoma (HL) are scarce. The aim of this study was to examine the incidence, risk factors, and outcome of sON in children treated for HL.

Radiological follow-up of osteonecrosis lesions in children and adolescents with Hodgkin lymphoma.

Osteonecrosis (ON) is a common complication of glucocorticoid-based Hodgkin lymphoma (HL) treatment, but the natural evolution and prognosis of ON lesions remain poorly understood. We describe the radiological evolution of ON lesions identified in a Nordic population-based cohort of paediatric HL patients. Magnetic resonance images of suspected ON lesions were centrally reviewed to confirm ON diagnosis and grade the ON lesions according to the Niinimäki classification.