This Week In The Bmj

No association found between prenatal ultrasound and childhood leukaemia

BMJ 2000; 320 doi: (Published 29 January 2000) Cite this as: BMJ 2000;320:d

Some evidence exists to suggest that there might be a link between prenatal exposure to ultrasound and childhood malignancies, but a nationwide case—control study in Sweden, using prospectively collected data, found no such association with lymphatic or myeloid leukaemia. Among 652 children born and diagnosed with leukaemia in 1973–89 and controls, Naumburg et al (p 282) found 200 children with lymphatic leukaemia and 214 controls exposed prenatally to ultrasound (odds ratio 0.85, 0.62 to 1.17); 29 children with myeloid leukaemia and 27 controls had been similarly exposed (1.0, 0.42 to 2.40).