Multiple sclerosis in South America: month of birth in different latitudes does not seem to interfere with the prevalence or progression of the disease.

OBJECTIVE: To assess whether the month of birth in different latitudes of South America might influence the presence or severity of multiple sclerosis (MS) later in life. METHODS: Neurologists in four South American countries working at MS units collected data on their patients' month of birth, gender, age, and disease progression. RESULTS: Analysis of data from 1207 MS patients and 1207 control subjects did not show any significant variation in the month of birth regarding the prevalence of MS in four latitude bands (0-10; 11-20; 21-30; and 31-40 degrees). There was no relationship between the month of birth and the severity of disease in each latitude band. CONCLUSION: The results from this study show that MS patients born to mothers who were pregnant at different Southern latitudes do not follow the seasonal pattern observed at high Northern latitudes.

Multiple sclerosis in South America: month of birth in different latitudes does not seem to interfere with the prevalence or progression of the disease / Esclerose multipla na America do Sul: mes de nascimento em diferentes latitudes nao parece interferir com a prevalencia ou progressao da doenca

Objective To assess whether the month of birth in different latitudes of South America might influence the presence or severity of multiple sclerosis (MS) later in life. Methods Neurologists in four South American countries working at MS units collected data on their patients' month of birth, gender, age, and disease progression. Results Analysis of data from 1207 MS patients and 1207 control subjects did not show any significant variation in the month of birth regarding the prevalence of MS in four latitude bands (0–10; 11–20; 21–30; and 31–40 degrees). There was no relationship between the month of birth and the severity of disease in each latitude band. Conclusion The results from this study show that MS patients born to mothers who were pregnant at different Southern latitudes do not follow the seasonal pattern observed at high Northern latitudes. .

Objetivo Avaliar se o mês de nascimento em diferentes latitudes da América do Sul pode influenciar a presença ou gravidade da esclerose múltipla (EM) na vida. Método Neurologistas de quatro países da América do Sul trabalhando em unidades de EM coletaram os dados de seus pacientes com referência ao mês de nascimento, gênero, idade e progressão da doença. Resultados A análise dos dados mostrou que, para 1207 pacientes com EM e 1207 controles, não havia diferença significativa no mês de nascimento com relação à prevalência de EM em quatro zonas de latitude (0–10; 11–20; 21–30; e 31–40 graus). Não houve relação entre o mês de nascimento e a gravidade da doença em nenhuma destas zonas. Conclusão Os resultados deste estudo mostram que pacientes com EM nascidos de mães grávidas em diferentes latitudes sul não seguem o padrão dos resultados sazonais encontrados nas latitudes norte. .

The effect of multiple sclerosis on the professional life of a group of Brazilian patients / O efeito da esclerose múltipla na vida profissional de um grupo de pacientes brasileiros

OBJECTIVE: To assess the impact of multiple sclerosis (MS) on the professional life of Brazilian patients. METHOD: One hundred MS patients were randomly selected from the database of the Brazilian Multiple Sclerosis Association (ABEM). An individual interview was carried out by telephone by a member of ABEM, who collected data on the patients' clinical status, educational level and professional lives. RESULTS: Complete data were obtained from 96 patients (27 males and 69 females) aged 55.0±14.1 years, with average disease duration of 4.6±4.0 years). Eighty percent had eleven or more years of schooling. Among the whole group, 66 percent did not present limitations on walking. The longer the disease duration and the older the patient were, the higher the chances were that the patient was retired or receiving workers' compensation benefits. However, even among patients with MS for less than five years, the rate of non-participation in the workforce was 47.7 percent. Fatigue, paresthesia, cognitive dysfunction and pain were often cited as the motives for not working. CONCLUSION: MS patients presented high levels of unemployment, retirement and receipt of workers' compensation benefits, despite their high schooling levels. Age, disease duration and disability influenced these results for the whole group. However, even among younger patients with shorter disease duration and low disability, this finding remained.

OBJETIVO: Avaliar o impacto da esclerose múltipla (EM) na vida profissional de pacientes brasileiros. MÉTODO: Cem pacientes com EM foram aleatoriamente selecionados da base de dados da Associação Brasileira de Esclerose Múltipla (ABEM). Uma entrevista individual por telefone foi realizada por um membro da ABEM que obteve dados sobre a condição clínica e a vida educacional e profissional dos pacientes. RESULTADOS: Dados completos foram obtidos de 96 pacientes (27 homens, 69 mulheres; idade 55,0±14,1 anos com um tempo médio de doença de 4,6±4,0 anos). Oitenta por cento deles tinham onze ou mais anos de estudo. Do grupo total, 66 por cento não apresentavam limitações para deambular. Quanto maior o tempo de doença e quanto mais velho o paciente, maior a chance que estivesse aposentado ou recebendo auxílio financeiro por afastamento. No entanto, mesmo os pacientes com menos de cinco anos de EM tinham um índice de ausência da força de trabalho de 47,7 por cento. Fadiga, parestesias, alterações cognitivas e dor foram frequentemente citadas como causas para não estar trabalhando. CONCLUSÃO: Pacientes com EM têm um alto índice de desemprego, aposentadoria e afastamento do trabalho apesar da alta escolaridade. Idade, duração da doença e incapacidade influenciaram estes achados. No entanto, estes resultados se mantiveram mesmo em pacientes mais jovens com menor tempo de doença e pouca incapacidade.

The effect of multiple sclerosis on the professional life of a group of Brazilian patients.

OBJECTIVE: To assess the impact of multiple sclerosis (MS) on the professional life of Brazilian patients. METHOD: One hundred MS patients were randomly selected from the database of the Brazilian Multiple Sclerosis Association (ABEM). An individual interview was carried out by telephone by a member of ABEM, who collected data on the patients' clinical status, educational level and professional lives. RESULTS: Complete data were obtained from 96 patients (27 males and 69 females) aged 55.0±14.1 years, with average disease duration of 4.6±4.0 years). Eighty percent had eleven or more years of schooling. Among the whole group, 66% did not present limitations on walking. The longer the disease duration and the older the patient were, the higher the chances were that the patient was retired or receiving workers' compensation benefits. However, even among patients with MS for less than five years, the rate of non-participation in the workforce was 47.7%. Fatigue, paresthesia, cognitive dysfunction and pain were often cited as the motives for not working. CONCLUSION: MS patients presented high levels of unemployment, retirement and receipt of workers' compensation benefits, despite their high schooling levels. Age, disease duration and disability influenced these results for the whole group. However, even among younger patients with shorter disease duration and low disability, this finding remained.