Phototherapy for neonatal hyperbilirubinemia not associated with childhood cancer: Study
Phototherapy for neonatal hyperbilirubinemia is not associated with any childhood cancer, according to a recent study published in the American Academy of Pediatrics.
The incidence of childhood cancer was higher for infants with phototherapy (25.1 per 100,000 person-years) and untreated jaundice (23.0 per 100,000) compared to unexposed infants (21.6 per 100,000).
A group of researchers aimed to reassess the relationship between phototherapy and cancer in an extended version of a previous cohort and to replicate a report from Quebec of increased cancer risk after phototherapy beginning at age 4 years.
This cohort study included 139 100 children born at ≥35 weeks' gestation from 1995 to 2017, followed through March 16, 2019, in Kaiser Permanente Northern California hospitals who had a qualifying bilirubin level from −3 mg/dL to +4.9 mg/dL from the American Academy of Pediatrics phototherapy threshold; an additional 40 780 children and 5 years of follow-up from our previous report. The exposure was inpatient phototherapy (yes or no), and the outcomes were various types of childhood cancer. We used Cox proportional hazard models, controlling for propensity-score quintiles, and allowed for time-dependent exposure effects to assess for the risk of cancer after a latent period.
The results of the study are as follows:
- Over a mean (SD) follow-up of 8.2 (5.7) years, the crude incidence of cancer per 100 000 person-years was 25.1 among those exposed to phototherapy and 19.2 among those not exposed (233 cases of cancer).
- After propensity adjustment, phototherapy was not associated with any cancer, hematopoietic cancer, or solid tumours
- The researchers also found no association with cancer diagnoses at age ≥4 years.
Thus, the researchers concluded that they did not confirm previous, concerning associations between phototherapy and adjusted risk of any cancer, nonlymphocytic leukaemia, or brain and/or central nervous systems tumours in later childhood.
Reference:
A study titled, "Update on Phototherapy and Childhood Cancer in a Northern California Cohort" By Jean C. Digitale, et al. was published in the Pediatrics.
DOI: https://doi.org/10.1542/peds.2021-051033
Disclaimer: This website is primarily for healthcare professionals. The content here does not replace medical advice and should not be used as medical, diagnostic, endorsement, treatment, or prescription advice. Medical science evolves rapidly, and we strive to keep our information current. If you find any discrepancies, please contact us at corrections@medicaldialogues.in. Read our Correction Policy here. Nothing here should be used as a substitute for medical advice, diagnosis, or treatment. We do not endorse any healthcare advice that contradicts a physician's guidance. Use of this site is subject to our Terms of Use, Privacy Policy, and Advertisement Policy. For more details, read our Full Disclaimer here.
NOTE: Join us in combating medical misinformation. If you encounter a questionable health, medical, or medical education claim, email us at factcheck@medicaldialogues.in for evaluation.