ArticleRevista brasileira de medicina do trabalho : publicacao oficial da Associacao Nacional de Medicina do Trabalho-ANAMT2020
Seasonal variation in fatigue indicators in Brazilian civil aviation crew rosters.
Article in Revista brasileira de medicina do trabalho : publicacao oficial da Associacao Nacional de Medicina do Trabalho-ANAMT, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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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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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
2 citing papers in PubMed.
- Aircrew rostering workload patterns and associated fatigue and sleepiness scores in short and medium haul flights in Brazil.Scientific reports · 2025Article
- Fatigue in Aviation: Safety Risks, Preventive Strategies and Pharmacological Interventions.Frontiers in physiology · 2021Review
Corrections and comments
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Authors and funding
11 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundAnalyzing, understanding and managing fatigue risk in aviation is relevant for flight safety and to reduce human error.
objectiveTo analyze probable levels of fatigue among a convenience sample of Brazilian civil aviation pilots and flight attendants and to develop appropriate methods and indicators to quantify potential fatigue risk in critical phases of flight (landings and takeoffs).
methodsData were obtained from flight rosters voluntarily and anonymously fed to a digital platform. Rosters were analyzed with software SAFTE-FAST, which considers homeostatic process and circadian cycles related to attention and wakefulness and sleep inertia.
resultsThe rosters for January (n=248), May (n=259) and July (n=261) 2018 were associated with incidence of 77, 54 and 77% respectively of least one event of minimal effectiveness (<77%) during critical phases of flight. The distribution of minimal effectiveness and hazard area during critical phases of flight exhibited significant seasonal oscillation upon comparing the results for January and July relative to May 2018 (p<0.001).
conclusionRelative likelihood of fatigue was high in the crew rosters, with significant seasonal oscillation of minimal effectiveness and hazard area in critical phases of flight. These results point to the need for improved roster management since prescriptive rules were insufficient to mitigate risk.
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