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Epidemiology

Amyotrophic lateral sclerosis in Antalya, Turkey. A prospective study, 2016–2018

ORCID Icon, , , & ORCID Icon
Pages 101-107 | Received 23 Jun 2020, Accepted 23 Aug 2020, Published online: 12 Sep 2020
 

Abstract

Objective

The aim of the study is to find the prevalence and incidence of amyotrophic lateral sclerosis in Antalya and to define patient characteristics.

Methods

The study represents five major districts in the Antalya metropolitan region, with a population of 1,286,943, which is defined as the provincial center. In cooperation with the neurology departments of all hospitals and private practices, existing cases were identified and new cases were recorded with continuous monitoring. Detailed demographic and clinical features of each patient were recorded, Revised El-Escorial Criteria were used for diagnosis. Incidence and prevalence rates are standardized by age based on USA 2016 population.

Results

Point prevalence rates of 2016, 2017 and 2018 are 3.7, 4.7 and 5.4 per hundred thousand, respectively. Standardized prevalence rates for the US population are 5.5, 7.1 and 8.6 per hundred thousand in the same order. The incidence rate in 2017 is 1.4 per hundred thousand, and 2018 is 1.2. Standardized incidence rates for the US population are 2.1 and 1.8 per hundred thousand, respectively. About 75.6% of the cases were classified as definite, 11.0% probable, 11.0% possible, 2.4% probable laboratory-supported. The male/female ratio is 2.0 for total cases and 2.8 for new cases. The site of onset is spinal in 81.7% of patients and bulbar in 18.3%.

Conclusions

ALS rates detected in Antalya and the general features of the disease show similarities with European countries rather than Asian countries and comply with the literature.

Declaration of interest

The authors have no conflicting interests regarding this manuscript.

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