Incidence and prevalence of myasthenia gravis in western Denmark: 1975 to 1989.
Neurology
; 43(9): 1779-83, 1993 Sep.
Article
em En
| MEDLINE
| ID: mdl-8414031
ABSTRACT
We studied the epidemiology of myasthenia gravis (MG) in western Denmark from 1975 to 1989, basing case identification on records from all hospitals in the survey area. The population surveyed was 2.80 million in 1985. The average annual incidence rate was 5.0 per million population (women, 5.9; men, 4.2). The point-prevalence rate (January 1, 1990) was 78 per million population (women, 102; men, 53). In men, the incidence increased after 40 years. In women, the incidence rates showed a bimodal pattern with a peak of 7.0 in the age group 20 to 29 years and a second peak of 11.7 in the age group 70 to 79 years. The differences in sex- and age-specific incidence rates suggest that younger women are more susceptible to MG than younger men. Old men and postmenopausal women had similar rates. When last examined, 21% of the 220 prevalent cases were in remission and 18% were moderately or severely disabled.
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Base de dados:
MEDLINE
Assunto principal:
Miastenia Gravis
Tipo de estudo:
Diagnostic_studies
/
Incidence_studies
/
Prevalence_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Adolescent
/
Adult
/
Aged
/
Child
/
Child, preschool
/
Female
/
Humans
/
Infant
/
Male
/
Middle aged
País/Região como assunto:
Europa
Idioma:
En
Revista:
Neurology
Ano de publicação:
1993
Tipo de documento:
Article
País de afiliação:
Dinamarca