Trends in the use of seat belts and mobile phones and their seasonal variations in Florence (2005-2015).

<h4>Introduction</h4>About 1.25 million people worldwide die every year because of road accidents. Risk is higher when drivers use mobile phones, whereas seat belts help to prevent crash-related injury. We aimed to evaluate the prevalence, associated factors, and temporal trend of the us...

Full description

Bibliographic Details
Main Authors: Chiara Lorini, Jacopo Bianchi, Gino Sartor, Maria Grazia Santini, Anna Mersi, Saverio Caini, Guglielmo Bonaccorsi
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2018-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0208489
_version_ 1819115246703345664
author Chiara Lorini
Jacopo Bianchi
Gino Sartor
Maria Grazia Santini
Anna Mersi
Saverio Caini
Guglielmo Bonaccorsi
author_facet Chiara Lorini
Jacopo Bianchi
Gino Sartor
Maria Grazia Santini
Anna Mersi
Saverio Caini
Guglielmo Bonaccorsi
author_sort Chiara Lorini
collection DOAJ
description <h4>Introduction</h4>About 1.25 million people worldwide die every year because of road accidents. Risk is higher when drivers use mobile phones, whereas seat belts help to prevent crash-related injury. We aimed to evaluate the prevalence, associated factors, and temporal trend of the use of seat belts and mobile phones among drivers and passengers in Florence, Italy (2005-2015).<h4>Methods</h4>Use of seat belts and mobile phones use was monitored via direct observation in four areas in the province of Florence. We fitted Poisson regression models with robust variance to investigate the factors associated with the use of seat belts and mobile phones use by the drivers and to explore long-term trends and seasonal patterns in the two time-series.<h4>Results</h4>We observed a total of an overall 134,775 vehicles: seat belts were worn by 71.8% of drivers and front-seat passengers and 27.6% of back-seat passengers, while mobile phones were being used by 4.8% of drivers. Drivers were more likely to wear seat belt when transporting passengers (≥2 vs none: prevalence ratio [PR] 1.21, 95% confidence intervals [CI] 1.14-1.29) and while driving in the afternoon (PR 1.04, 95% CI 1.03-1.05), and less likely when the front-seat passenger was not wearing seat belts (PR 0.33, 95% CI 0.32-0.34). After an initial increase, seat belts use by the driver decreased over time (-0.5% each year during 2010-2015), with significant peaks and troughs in July and January, respectively. Mobile phone use by the driver was inversely associated with wearing seat belts (PR 0.67, 95% CI 0.64-0.70) and carrying passengers (≥2 vs. none PR 0.20, 95% CI 0.07-0.52). The proportion of drivers using mobile phones did not vary over time nor showed any clear seasonality.<h4>Conclusions</h4>Drivers' risky behaviours (not wearing a seat belt and using a mobile phone) are associated, showing a global misperception of risk among a subset of drivers. The number of passengers and their behaviour is also associated with the driver's attitude. The effectiveness of primary enforcement laws has declined in Italy in recent years; therefore, other strategies should be devised and implemented.
first_indexed 2024-12-22T04:58:09Z
format Article
id doaj.art-112ad6a3c1f14a7d87d5889c3cf3230f
institution Directory Open Access Journal
issn 1932-6203
language English
last_indexed 2024-12-22T04:58:09Z
publishDate 2018-01-01
publisher Public Library of Science (PLoS)
record_format Article
series PLoS ONE
spelling doaj.art-112ad6a3c1f14a7d87d5889c3cf3230f2022-12-21T18:38:20ZengPublic Library of Science (PLoS)PLoS ONE1932-62032018-01-011312e020848910.1371/journal.pone.0208489Trends in the use of seat belts and mobile phones and their seasonal variations in Florence (2005-2015).Chiara LoriniJacopo BianchiGino SartorMaria Grazia SantiniAnna MersiSaverio CainiGuglielmo Bonaccorsi<h4>Introduction</h4>About 1.25 million people worldwide die every year because of road accidents. Risk is higher when drivers use mobile phones, whereas seat belts help to prevent crash-related injury. We aimed to evaluate the prevalence, associated factors, and temporal trend of the use of seat belts and mobile phones among drivers and passengers in Florence, Italy (2005-2015).<h4>Methods</h4>Use of seat belts and mobile phones use was monitored via direct observation in four areas in the province of Florence. We fitted Poisson regression models with robust variance to investigate the factors associated with the use of seat belts and mobile phones use by the drivers and to explore long-term trends and seasonal patterns in the two time-series.<h4>Results</h4>We observed a total of an overall 134,775 vehicles: seat belts were worn by 71.8% of drivers and front-seat passengers and 27.6% of back-seat passengers, while mobile phones were being used by 4.8% of drivers. Drivers were more likely to wear seat belt when transporting passengers (≥2 vs none: prevalence ratio [PR] 1.21, 95% confidence intervals [CI] 1.14-1.29) and while driving in the afternoon (PR 1.04, 95% CI 1.03-1.05), and less likely when the front-seat passenger was not wearing seat belts (PR 0.33, 95% CI 0.32-0.34). After an initial increase, seat belts use by the driver decreased over time (-0.5% each year during 2010-2015), with significant peaks and troughs in July and January, respectively. Mobile phone use by the driver was inversely associated with wearing seat belts (PR 0.67, 95% CI 0.64-0.70) and carrying passengers (≥2 vs. none PR 0.20, 95% CI 0.07-0.52). The proportion of drivers using mobile phones did not vary over time nor showed any clear seasonality.<h4>Conclusions</h4>Drivers' risky behaviours (not wearing a seat belt and using a mobile phone) are associated, showing a global misperception of risk among a subset of drivers. The number of passengers and their behaviour is also associated with the driver's attitude. The effectiveness of primary enforcement laws has declined in Italy in recent years; therefore, other strategies should be devised and implemented.https://doi.org/10.1371/journal.pone.0208489
spellingShingle Chiara Lorini
Jacopo Bianchi
Gino Sartor
Maria Grazia Santini
Anna Mersi
Saverio Caini
Guglielmo Bonaccorsi
Trends in the use of seat belts and mobile phones and their seasonal variations in Florence (2005-2015).
PLoS ONE
title Trends in the use of seat belts and mobile phones and their seasonal variations in Florence (2005-2015).
title_full Trends in the use of seat belts and mobile phones and their seasonal variations in Florence (2005-2015).
title_fullStr Trends in the use of seat belts and mobile phones and their seasonal variations in Florence (2005-2015).
title_full_unstemmed Trends in the use of seat belts and mobile phones and their seasonal variations in Florence (2005-2015).
title_short Trends in the use of seat belts and mobile phones and their seasonal variations in Florence (2005-2015).
title_sort trends in the use of seat belts and mobile phones and their seasonal variations in florence 2005 2015
url https://doi.org/10.1371/journal.pone.0208489
work_keys_str_mv AT chiaralorini trendsintheuseofseatbeltsandmobilephonesandtheirseasonalvariationsinflorence20052015
AT jacopobianchi trendsintheuseofseatbeltsandmobilephonesandtheirseasonalvariationsinflorence20052015
AT ginosartor trendsintheuseofseatbeltsandmobilephonesandtheirseasonalvariationsinflorence20052015
AT mariagraziasantini trendsintheuseofseatbeltsandmobilephonesandtheirseasonalvariationsinflorence20052015
AT annamersi trendsintheuseofseatbeltsandmobilephonesandtheirseasonalvariationsinflorence20052015
AT saveriocaini trendsintheuseofseatbeltsandmobilephonesandtheirseasonalvariationsinflorence20052015
AT guglielmobonaccorsi trendsintheuseofseatbeltsandmobilephonesandtheirseasonalvariationsinflorence20052015