ArticleBrazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologicas2026
Time of day is associated with federal highway accidents in Brazil.
Article in Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologicas, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
The trial behind it
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
According to the most recent Global Status Record of Road Traffic, the number of road traffic deaths continues to rise. The risk of a road traffic death is more than 3 times higher in low-income countries than in high-income countries. However, the effect of time of day on road accidents is barely considered in public policies to reduce the chance of an accident. This study aimed to estimate the chance of an accident for every hour of the day in Brazil. From the raw data on accidents, their hourly distribution was derived, with a one-hour resolution. The data on the flow of vehicles on the highways was similarly organized. In the specific case of the flow, the total average flow for all sensors on Brazilian highways from 2015 to 2017 was used. It was clearly observed that the chance of an accident, in general, is on average 3-3.5 times higher between 02:00 and 04:00 h than during 07:00-19:00 h. Two other peaks were also noticed, the first one at around 07:00 h and a second one around 18:00 h, which were linked to an excess of vehicle traffic (rush hours) but were lower when compared to the chance during the night. The chance of a road accident in the middle of the night was higher compared to the rest of the 24 hours, similar to high-income countries.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.