The investigators will first examine the impact of the COVID-19 pandemic on childhoodcancer patients in Sweden and Denmark, both regarding susceptibility to severe COVID-19among long-term childhood cancer survivors, and, for those diagnosed with childhoodcancer during the pandemic, whether the path through primary care to cancer diagnosis aswell as short-term survival has changed. Second, the investigators will study childhoodcancer incidence before, during and after the pandemic with the particular aim to testthe hypothesis regarding an infectious disease etiology for acute lymphoblastic leukemia.
Not Provided
Inclusion Criteria for studying severe COVID-19 among childhood cancer survivors:
- Childhood cancer cases (age 0-19) diagnosed from 1971 in Sweden and Denmark who were
alive five years after diagnosis
- Two different comparisons groups: five age- and sex-matched comparisons for each
childhood cancer survivor as well as all siblings of the childhood cancer survivors.
- All childhood cancer survivors, matched comparisons, and siblings of the survivors
should be 20+ at the start of 2020.
Inclusion Criteria for studying childhood cancer incidence and survival and number of
contacts with healthcare before the childhood cancer diagnosis:
- All children (age 0-19) diagnosed with cancer from 2015 in Sweden and Denmark
Exclusion Criteria:
- No exclusion criteria
Karolinska Institutet
Stockholm, Sweden
Giorgio Tettamanti, PhD, Principal Investigator
Karolinska Institutet