• Jaime Luna, Mouhamadou Diagana, Leila Ait Aissa, Meriem Tazir, Lamia Ali Pacha, Imen Kacem, Riadh Gouider, Franclo Henning, Anna Basse, Ousmane Cisse, Agnon Ayélola Koffi Balogou, Damelan Kombate, Mendinatou Agbetou, Dismand Houinato, Athanase Millogo, Thierry Agba, Mouftao Belo, Marie Penoty, Marie Raymondeau-Moustafa, Bello Hamidou, Philippe Couratier, Pierre Marie Preux, Benoit Marin, and TROPALS Collaboration.
• INSERM, U1094, Tropical Neuroepidemiology, Limoges, France.
• J. Neurol. Neurosurg. Psychiatr. 2019 Jan 1; 90 (1): 20-29.

ObjectiveWe describe and compare the sociodemographic and clinical features, treatments, and prognoses and survival times of patients with amyotrophic lateral sclerosis (ALS) in Africa.MethodologyWe conducted a multicentre, hospital-based cohort study in Africa. Patients with ALS diagnosed in the neurology departments of participating hospitals from 2005 to 2017 were included. Subgroup analysis was performed by subcontinent. Survival analyses were conducted using the Cox proportional hazards model.ResultsNine centres from eight African countries participated. A total of 185 patients with ALS were included: 114 from Northern Africa, 41 from Western Africa and 30 from Southern Africa. A male predominance (male to female ratio 2.9) was evident. The median age at onset was 53.0 years (IQR 44.5-64.0 years). The onset was bulbar in 22.7%. Only 47 patients (26.3%) received riluzole, mainly in Northern and Western Africa. The median survival from the time of diagnosis was 14.0 months (95% CI 10.7 to 17.2 months). The median survival was longer in Northern Africa (19.0 months, 95% CI 10.8 to 27.2 months) than in Western (4.0 months, 95% CI 0.8 to 7.1 months) and Southern (11.0 months, 95% CI 5.6 to 16.4 months) Africa (Breslow test, p<0.0001). Both subcontinental location and riluzole treatment independently affected survival.ConclusionMore African patients with ALS were male and younger and exhibited a lower proportion of bulbar onset compared with patients with ALS from Western nations. Survival was consistent with that in Western registers but far shorter than what would be expected for young patients with ALS. The research improves our understanding of the disease in Africa.© Author(s) (or their employer(s)) 2019. No commercial re-use. See rights and permissions. Published by BMJ.

28 keywords...

hide…