Diabetic Ketoacidosis Severity at Diagnosis and Glycaemic Control in the First Year of Childhood Onset Type 1 DiabetesA Longitudinal Cohort Study



Khanolkar, Amal R, Amin, Rakesh, Taylor-Robinson, David ORCID: 0000-0002-5828-7724, Viner, Russell M, Warner, Justin, Gevers, Evelien F and Stephenson, Terence
(2018) Diabetic Ketoacidosis Severity at Diagnosis and Glycaemic Control in the First Year of Childhood Onset Type 1 DiabetesA Longitudinal Cohort Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 15 (1). E26-.

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Abstract

It is unclear whether diabetic ketoacidosis (DKA) severity at diagnosis affects the natural history of type 1 diabetes (T1D). We analysed associations between DKA severity at diagnosis and glycaemic control during the first year post-diagnosis. We followed 341 children with T1D, <19 years (64% non-white) attending paediatric diabetes clinics in East London. Data were extracted from routine medical registers. Subjects were categorized with normal, mild, moderate, or severe DKA. Linear mixed-effects modelling was used to assess differences in longitudinal HbA1<sub>c</sub> trajectories (glycaemic control) during 12 months post-diagnosis (1288 HbA1<sub>c</sub> data-points) based on DKA, adjusting for sex, age, ethnicity, SES (Socioeconomic Status) and treatment type. Females (OR 1.6, 95% CI 1.1-2.4) and younger age, 0-6 vs. 13-18 years (OR 2.9, 95% CI 1.5-5.6) had increased risk for DKA at diagnosis. Moderate or severe DKA was associated with higher HbA1<sub>c</sub> at diagnosis (adjusted estimates 8 mmol/mol, 2-14, and 10 mmol/mol, 4-15, respectively, compared to normal DKA). Differences in HbA1<sub>c</sub> trajectories by DKA were no longer apparent at six months post-diagnosis. All subjects experienced a steep decrease in HbA1<sub>c</sub> during the first three months followed by a gradual increase. While, DKA severity was not associated with glycaemic control at 12 months post-diagnosis, age at diagnosis, ethnicity, gender, and treatment type were significantly associated. For example, Black and mixed ethnicity children had increased risk for poor glycaemic control compared to White children (adjusted RRR 5.4, 95% CI 1.7-17.3 and RRR 2.5, 95% CI 1.2-6.0, respectively). DKA severity at diagnosis is associated with higher initial HbA1<sub>c</sub> but not glycaemic control from six months post-diagnosis. Age at diagnosis, ethnicity, gender, and insulin pump are associated with glycaemic control at one year post-diagnosis.

Item Type: Article
Uncontrolled Keywords: type 1 diabetes, diabetic ketoacidosis, glycaemic control, ethnicity, inequalities, longitudinal analysis
Depositing User: Symplectic Admin
Date Deposited: 17 Jan 2018 15:20
Last Modified: 13 Feb 2023 23:50
DOI: 10.3390/ijerph15010026
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3016287