Capture-recapture as a potentially useful procedure for assessing prevalence of multiple sclerosis: methodologic exercise using Portuguese data

Neuroepidemiology
J de SáJ de Pedro-Cuesta

Abstract

Capture-recapture methods (CRMs) are well established in epidemiologic surveillance and considered useful for the task of correcting for case-finding limitations in multiple sclerosis (MS) prevalence surveys. To date, however, CRMs have been exclusively applied to crude prevalence figures. This study therefore sought to explore an age-specific application of this method to an urban Portuguese population of 229,342. We used a CRM to correct for the age-specific prevalence of MS obtained from two data sources, i.e. general practitioners in three primary-care districts and a neurology unit at the referral hospital. The corrected figures were adjusted for age using the European standard population as reference. When applied to 95 MS patients, the CRM impact was highest at ages 50-59 years, with a 110% increase in cases where the corrected prevalence was highest, i.e. 181.8 (95% CI 75.7-287.9) per 100,000, and lowest, nil, at ages ≥70 years, with an unchanged corrected prevalence of 13.8. The crude prevalence of 41.4 per 100,000 increased by 36% to 56.20 per 100,000 when it was CRM- and age-adjusted. Source independence was poor. CRMs can be differentially applied to MS counts. Valid comparisons may require simultaneous adjustment f...Continue Reading

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Citations

Dec 22, 2014·BMC Neurology·Joao de SáJesús de Pedro-Cuesta
Feb 3, 2015·Neurology Research International·José FigueiredoPaulo A Pereira
Dec 27, 2013·Journal of the Neurological Sciences·Ana Martins da SilvaUNKNOWN Portuguese JEMS Study Investigators
Jun 24, 2017·Multiple Sclerosis : Clinical and Laboratory Research·Maria José SáUNKNOWN European Multiple Sclerosis Platform
Feb 1, 2013·Neuroepidemiology·Charity EvansRuth Ann Marrie
Mar 14, 2021·Multiple Sclerosis and Related Disorders·Filipe PalavraLívia Sousa
Oct 20, 2019·Journal of the Neurological Sciences·Maria José SáUNKNOWN JUSTIFY Investigators

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