Risk of Subsequent Primary Cancer in Thyroid Cancer Survivors: A Nationwide Population-Based Study.

Despite obtaining a good prognosis and long life expectancy, survivors of thyroid cancer can nevertheless develop subsequent primary cancer (SPC). We investigated the risk and types of SPC in patients with thyroid cancer and compared them with subjects without thyroid cancer history (controls). We conducted a nationwide, population-based, retrospective cohort study based on the Korean National Health Insurance Database.

Associations of Earphone Use with Tinnitus and Anxiety/Depression.

Objective: This study aimed to investigate the association of earphone use with audiologic and psychologic factors.

Materials And Methods: Korea National Health and Nutrition Examination Survey 2010-2012 data were collected for participants aged ≥12 years old with earphone use ≥1 hour/day. They were matched to a control group for age, sex, income, and education level.