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A Comparison of Validated Methods Used to Assess Impaired Awareness of Hypoglycaemia in Type 1 Diabetes: An Observational Study.


ABSTRACT:

Introduction

Clarke, Gold and Pedersen are validated methods to assess awareness of hypoglycaemia. Identifying impaired awareness of hypoglycaemia (IAH) is critical for supporting people with structured education and diabetes technologies, to reduce harm of hypoglycaemia. This study compares the Clarke score, Gold score and Pedersen methods and their correlations with features of hypoglycaemia unawareness and patient characteristics, to evaluate the accuracy of the methods in identifying IAH.

Methods

This retrospective, observational questionnaire-based study collected routine clinical data from 100 people with type 1 diabetes. The questionnaire included the three validated scoring methods, frequency of severe and nocturnal hypoglycaemia, knowledge and worry of hypoglycaemia and hypoglycaemia symptom scores using the Edinburgh Hypoglycaemia Scale. Data were analysed for IAH prevalence and the associations with features of IAH. The concordance of Clarke, Gold and Pedersen methods was evaluated using Spearman's correlation coefficient.

Results

The prevalence of IAH in this cohort identified by Clarke, Gold and Pedersen methods was 18%, 19% and 61% respectively. The mean autonomic symptom score in people with IAH was significantly reduced using the Clarke method (P?=?0.0002) but not on Gold (P?=?0.12) and Pedersen methods (P?=?0.79). For people with IAH assessed using the Clarke method, scores for night-time worry regarding hypoglycaemia (P?=?0.04) and self-reported frequency of nocturnal hypoglycaemia (P?=?0.001) were increased. Spearman's correlation coefficients between Pedersen and Clarke and Pedersen and Gold were Rs?=?0.555 (P?s?=?0.645 (P?s?=?0.5669 (P?ConclusionWhilst Clarke and Gold methods determined a similar prevalence of IAH, people identified with IAH assessed by the Clarke method had a significant association with the features and characteristics of IAH, including reduced autonomic symptoms. This study suggests that performing more than one score is important for a reliable risk assessment of IAH.

SUBMITTER: Ghandi K 

PROVIDER: S-EPMC7843675 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature

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A Comparison of Validated Methods Used to Assess Impaired Awareness of Hypoglycaemia in Type 1 Diabetes: An Observational Study.

Ghandi Kshitiz K   Pieri Beatrice B   Dornhorst Anne A   Hussain Sufyan S  

Diabetes therapy : research, treatment and education of diabetes and related disorders 20201120 1


<h4>Introduction</h4>Clarke, Gold and Pedersen are validated methods to assess awareness of hypoglycaemia. Identifying impaired awareness of hypoglycaemia (IAH) is critical for supporting people with structured education and diabetes technologies, to reduce harm of hypoglycaemia. This study compares the Clarke score, Gold score and Pedersen methods and their correlations with features of hypoglycaemia unawareness and patient characteristics, to evaluate the accuracy of the methods in identifying  ...[more]

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