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Introduction: All forms of cell phone use while driving poses a threat to traffic safety. Few studies have reported the prevalence from low- and middle-income countries where the risk of severe road traffic crashes is highest. This study aimed to ascertain the prevalence of cell phone use among motor vehicle drivers in Maputo city, Mozambique, considering different types of vehicles and cell phone use. Methods: A roadside observational study was conducted to assess cell phone use while driving in three typical urban environments (on straight roads, at intersections, and by roadside markets) during three daytime periods. The prevalence of use, expressed in percentages with 95 % confidence intervals, was estimated by type of vehicle and sex. Results: An overall 9.3 % prevalence of cell phone use was observed among the 11 680 completed observations of motor vehicle drivers. Prevalence was lower at intersections and by roadside markets (7.1 % respective 7.5 %) and higher on straight roads (12.9 %) and, for men, three times as high among car drivers (10.3 %) than among drivers of motorized three-wheelers (3.3 %). Speaking/listening was more prevalent than texting/reading for both women (52.6 % vs 36.1 %) and men (46.4 % vs 40.5 %). At all three types of sites, men in trucks spoke/listened more than men in other type of vehicles while men in cars texted/read to a greater extent. Conclusion: The overall prevalence of cell phone use observed among motor vehicle drivers in Maputo city is in the upper range of those observed in high-income settings. Notwithstanding sex-related differences and variations by type of site and vehicle and coupled with the poor road safety conditions of the city – and of the country as a whole – and the imminent rise in cell phone ownership and internet connectivity, cell phone use at the wheel is a significant cause for concern and concerted actions are called for.

Objetivo: O presente estudo piloto investigou o comportamento de uso de máscaras para a prevenção da COVID-19, tendo como objetivo determinar a magnitude do uso de máscaras em espaços públicos. Métodos: Trata-se de um estudo quantitativo de caráter prospectivo, realizado na cidade de Maputo, Moçambique, em fevereiro de 2020, com recurso da técnica de observação sistemática, através do uso de uma plataforma eletrônica de recolha de dados construído no Google Forms©, visando obter dados como o local, o sexo, o uso ou não de máscaras, bem como a forma de uso desta. A amostragem apresentou-se como aleatória sistemática, contando com uma amostra de 1.020 indivíduos, obtida em dois terminais de transporte rodoviário e um mercado, caracterizados por grandes aglomerações. Os dados colhidos passaram por análises de estatística descritiva, ANOVA e Teste T para amostras independentes. Resultados: Verificou-se que 72,9% (744) dos indivíduos traziam máscara, entretanto, apenas 53% (541) usava-a de forma adequada, cobrindo a boca e o nariz. As mulheres apresentaram uma média mais elevada comparativamente aos homens (t=4.471; p=0.000). Conclusão: O uso de máscaras em espaços públicos, avaliado na cidade de Maputo, pode ser considerado baixo, o que pressupõe altos níveis de vulnerabilidade para novas vagas do COVID-19.