RT Journal Article SR Electronic T1 Thyroid function at diagnosis of type I diabetes JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 777 OP 779 DO 10.1136/adc.2009.168799 VO 96 IS 8 A1 J Joseph A1 V Saroha A1 H Payne A1 P Paul A1 M Didi A1 D Isherwood A1 J Blair YR 2011 UL http://adc.bmj.com/content/96/8/777.abstract AB Background National guidelines recommend that thyroid function is assessed at diagnosis of type I diabetes (TIDM) and annually thereafter. This paper reports an audit of thyroid surveillance in accordance with this guideline. Patients 110 patients (66 males), median age 11.3 (1.2–15.7) years at diagnosis of TIDM, were monitored for 2.3 (0.7–4.2) years. Results 21/110 (19.0%) patients had abnormal thyroid function at diagnosis of TIDM. Of these, 16 had normal thyroid function on reassessment after 45 (3–540) days. Abnormalities of thyroid function occurred more commonly in children with diabetic ketoacidosis (DKA) than those who did not have DKA (9/29, 31.0% vs 12/81, 14.8%, p<0.025). At the end of the observation period, five (4.5%) patients had minor abnormalities of thyroid function not requiring treatment and three (2.7%) were treated. Conclusions Transient abnormalities of thyroid function are common at diagnosis of TIDM, and therefore, thyroid hormones should not be measured at this time.