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. 2019 Apr;7(3):377-387.
doi: 10.1177/2050640618814662. Epub 2018 Nov 18.

Mortality in people with coeliac disease: Long-term follow-up from a Scottish cohort

Wilhemina Quarpong  1 , Timothy R Card  1   2 , Joe West  1   2 , Masoud Solaymani-Dodaran  1   3 , Richard Fa Logan  1 , Matthew J Grainge  1
Affiliations

Mortality in people with coeliac disease: Long-term follow-up from a Scottish cohort

Wilhemina Quarpong et al. United European Gastroenterol J. 2019 Apr.

Abstract

Background: Few studies have determined the very long-term mortality risks in adult and childhood-diagnosed coeliac disease.

Objective: We quantified mortality risks in coeliac disease and determined whether age at diagnosis, or time following diagnosis, modified these risks.

Methods: Standardised mortality ratios were determined using data from a cohort of 602 coeliac patients assembled between 1979-1983 from Lothian, Scotland, and followed up from 1970-2016.

Results: All-cause mortality was 43% higher than in the general population. Excess deaths were primarily from haematological malignancies (standardised mortality ratio, 4.77) and external causes (standardised mortality ratio, 2.62) in adult and childhood-diagnosed cases respectively. Mortality risks declined steadily with time in adult-diagnosed cases (standardised mortality ratio, 4.85 in first year compared to 0.97, 25 years post-diagnosis). Beyond 15 years, this group had a significantly reduced risk of any malignancy (standardised mortality ratio, 0.57 (95% confidence interval: 0.33-0.92)). In contrast, for childhood-diagnosed cases an increased risk existed beyond 25 years (standardised mortality ratio, 2.24).

Conclusions: Adult-diagnosed coeliac patients have a temporarily increased mortality risk mainly from malignant lymphomas and a decreased risk of any malignancy beyond 15 years post-diagnosis. In contrast, childhood-diagnosed cases are at an increased risk of mortality mainly from external causes, and have long-term mortality risks that requires further investigation.

Keywords: Coeliac disease; UK study; causes of death; cohort study; mortality.

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Figures

Figure 1.
Figure 1.
Proportion of excess deaths from analysed causes. Causes of death analysed in the cohort and the percentage of excess deaths from each of these causes, calculated as number of excess deaths from specific cause/total number of excess deaths × 100%. Definition of symbols used: *Significant number of excess deaths.
Figure 2.
Figure 2.
Average ages at death from specific causes. Average age of death among participants who died by cause of death.
See this image and copyright information in PMC

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