• Peter S Hamblin, Azni L Abdul-Wahab, Sylvia F B Xu, Cheryl E Steele, and Sara Vogrin.
• Department of Endocrinology and Diabetes, Western Health, Melbourne, Victoria, Australia.
• Intern Med J. 2022 Jun 1; 52 (6): 1002-1008.

BackgroundRecurrent diabetic ketoacidosis (DKA) has been linked to mental health disorders, but less is known about single DKA episodes. Most studies are retrospective, lacking control groups.AimsTo prospectively examine psychosocial factors in patients presenting with recurrent or single episode DKA and compare with people who have not had DKA.MethodsCase-controlled study (consecutive adult DKA admissions April 2015 to December 2016) at Western Health, Melbourne. Data were prospectively collected regarding diagnosed mental health disorders, likely depression (Patient Health Questionnaire (PHQ-9)), diabetes distress (Problem Areas in Diabetes (PAID) questionnaire) and presence of adverse social factors. A control group without a history of DKA was also recruited.ResultsOf 123 patients admitted with DKA (164 consecutive episodes), 70 consented to participate and 73 age-matched Type 1 diabetes controls were recruited. Eleven (61%) of 18 with recurrent DKA had a diagnosed mental health disorder versus 8 (19%) of 42 in the single episode group (P = 0.016). The prevalence of likely depression using PHQ-9 was: recurrent 50%; single 40%; and controls 22% (recurrent vs controls, P = 0.036; single vs controls, P = 0.053). Severe diabetes distress (PAID) was present in 47% of recurrent and 34% of single episode DKA (P = 0.387). As a group, DKA patients had significantly more unemployment, illicit drug use and tobacco smoking, a lower level of formal education and less regular medical contact compared with controls.ConclusionsMental health disorders and adverse socioeconomic factors appear to be common in patients with DKA. The diagnosis of DKA presents an excellent opportunity to screen for depression and offer appropriate intervention.© 2021 Royal Australasian College of Physicians.

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