ArticleRevista de saude publica2019
Effectiveness of the Mobile Emergency Medical Services (SAMU): use of interrupted time series.
Article in Revista de saude publica, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
6 citing papers in PubMed.
- Alcohol- and drug-related mortality in Brazil: an ecological and population-based study on changes observed during the COVID-19 pandemic.Lancet regional health. Americas · 2026Article
- Analysis of mortality of users treated at a Mobile Emergency Care Service: an observational study, Paraná, 2019-2020.Epidemiologia e servicos de saude : revista do Sistema Unico de Saude do Brasil · 2025Observational
- Scalable policy adoption and sustainable implementation of surgical care in the Americas.Revista panamericana de salud publica = Pan American journal of public health · 2024Article
- Reduced HIV/AIDS diagnosis rates and increased AIDS mortality due to late diagnosis in Brazil during the COVID-19 pandemic.Scientific reports · 2023Article
- Impact of the COVID-19 pandemic on the diagnosis of leprosy in Brazil: An ecological and population-based study.Lancet regional health. Americas · 2022Article
- Impact of the COVID-19 Pandemic on the Diagnosis of Tuberculosis in Brazil: Is the WHO End TB Strategy at Risk?Frontiers in pharmacology · 2022Article
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo evaluate the performance of the Mobile Emergency Medical Services (SAMU) in the ABC Region, using myocardial infarction as tracer condition.
methodsThe analysis of interrupted time series was the approach chosen to test immediate and gradual effects of the intervention on the study population. The research comprised adjusted monthly time series of the hospital mortality rate by myocardial infarction in the period between 2000 and 2011. Data were extracted from the Mortality Information System (SIM), using segmented regression analysis to evaluate the level and trend of the intervention before and after its implementation. To strengthen the internal validity of the study, a control region was included.
resultsThe analysis of interrupted time series showed a reduction of 0.04 deaths per 100,000 inhabitants in the mortality rate compared to the underlying trend since the implementation of the Emergency Medical Services (p = 0.0040; 95%CI: -0.0816 - -0.0162) and a reduction in the level of 2.89 deaths per 100,000 inhabitants (p = 0.0001; 95%CI: -4.3293 - -1.4623), both with statistical significance. Regarding the control region, Baixada Santista, the difference in the result trend between intervention outcome and post-intervention control of -0.0639 deaths per 100,000 inhabitants was statistically significant (p = 0.0031; 95%CI: -0.1060 - -0.0219). We cannot exclude confounders, but we limited their presence in the study by including control region series.
conclusionsAlthough the analysis of interrupted time series has limitations, this modeling can be useful for analyzing the performance of policies and programs. Even though the intervention studied is not a condition that in itself implies effectiveness, the latter would not be present without the former, which, integrated with other conditions, generates a positive result. SAMU is a strategy that must be expanded when formulating and consolidating policies focusing on emergency care.
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