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Table 2 Studies on the prevalence of multiple sclerosis in Portugal

From: The epidemiology of multiple sclerosis in the entre Douro e Vouga region of northern Portugal: a multisource population-based study

Author Year Design Pop. Area N Prevalence per 100,000 [95% CI]
De Sá, J [11]. 1999 Multisource population-based 62,621 Santarem District 29 46.3
[29.5–63.2]
De Sá, J [12]. 2009 Multisource population-based 229,342 Lisbon (three parishes) 95 41.4
[33.5–50.6]
Figueiredo J [13]. 2009 Hospital based 866,012 Braga district 345 39.8
[27.5–52.2]
Branco, M (present study) 2014 Multisource population-based 274,859 Entre Douro e Vouga Region 177 64.4
[54.9–73.9]