Impact of speed cameras on trauma centers

Jeffrey Skubic, Steven Vanhoy, Chengcheng Hu, Nirav Patel, Steven B. Johnson, Christopher Salvino

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

BACKGROUND: While studies, mostly from Europe and Australia, have examined the effect of speed cameras on motor vehicle collisions, limited data exist regarding their impact on charges and number of patients taken to Level 1 trauma centers (L1TCs). Because of conflicting perceptions and data on their value, speed cameras were implemented along select Arizona highways in 2008 but then removed in 2010. The hypotheses of our study were twofold. (1) Speed cameras reduce admissions to L1TCs, and (2) speed cameras reduce crash kinetic energy, resulting in lower Injury Severity Score (ISS), mortality, hospital costs, and length of stay (LOS). METHODS: A retrospective review of all patients admitted to L1TCs who were injured in motor vehicle crashes along a 26-mile segment of interstate I-10 in urban Phoenix was performed. Patients were identified using both the Arizona State Trauma Registry and the Arizona Department of Transportation collision data for 2009 to 2011. This specific 26-mile segment of I-10 was selected because it contained at least one speed camera within 1 mile along its entire length from October 2008 to October 2010. Two time frames were evaluated: January 1 to December 31, 2009, when cameras were in place (2009 camera group) and January 1 to December 31, 2011, when no cameras were in place (2011 no-camera group). Variables analyzed include number of collisions, number of injuries, on-scene mortality, trauma center admissions, number of collisions with admissions, in-hospital mortality, ISS, hospital charges, LOS, age, sex, race, and ethnicity. Five confounding variables were eliminated. Analysis was performed using Fisher's exact test and linear regression. RESULTS: Camera removal was associated with a twofold increase in L1TC admissions as well as increased resource use. There were no significant differences between the two time frames for ISS, mortality, median charges, or median LOS. CONCLUSION: In this study, removal of speed cameras resulted in increased trauma center admissions and resource use. LEVEL OF EVIDENCE: Care management study, level IV.

Original languageEnglish (US)
Pages (from-to)193-197
Number of pages5
JournalJournal of Trauma and Acute Care Surgery
Volume77
Issue number2
DOIs
StatePublished - 2014

Fingerprint

Trauma Centers
Injury Severity Score
Length of Stay
Motor Vehicles
Mortality
Hospital Charges
Confounding Factors (Epidemiology)
Hospital Costs
Wounds and Injuries
Hospital Mortality
Registries
Linear Models

Keywords

  • Collision
  • Motor vehicle
  • Resource use
  • Speed camera

ASJC Scopus subject areas

  • Critical Care and Intensive Care Medicine
  • Surgery

Cite this

Skubic, J., Vanhoy, S., Hu, C., Patel, N., Johnson, S. B., & Salvino, C. (2014). Impact of speed cameras on trauma centers. Journal of Trauma and Acute Care Surgery, 77(2), 193-197. https://doi.org/10.1097/TA.0000000000000290

Impact of speed cameras on trauma centers. / Skubic, Jeffrey; Vanhoy, Steven; Hu, Chengcheng; Patel, Nirav; Johnson, Steven B.; Salvino, Christopher.

In: Journal of Trauma and Acute Care Surgery, Vol. 77, No. 2, 2014, p. 193-197.

Research output: Contribution to journalArticle

Skubic, J, Vanhoy, S, Hu, C, Patel, N, Johnson, SB & Salvino, C 2014, 'Impact of speed cameras on trauma centers', Journal of Trauma and Acute Care Surgery, vol. 77, no. 2, pp. 193-197. https://doi.org/10.1097/TA.0000000000000290
Skubic, Jeffrey ; Vanhoy, Steven ; Hu, Chengcheng ; Patel, Nirav ; Johnson, Steven B. ; Salvino, Christopher. / Impact of speed cameras on trauma centers. In: Journal of Trauma and Acute Care Surgery. 2014 ; Vol. 77, No. 2. pp. 193-197.
@article{f4b9639f52ae46718981cf0259a93f3b,
title = "Impact of speed cameras on trauma centers",
abstract = "BACKGROUND: While studies, mostly from Europe and Australia, have examined the effect of speed cameras on motor vehicle collisions, limited data exist regarding their impact on charges and number of patients taken to Level 1 trauma centers (L1TCs). Because of conflicting perceptions and data on their value, speed cameras were implemented along select Arizona highways in 2008 but then removed in 2010. The hypotheses of our study were twofold. (1) Speed cameras reduce admissions to L1TCs, and (2) speed cameras reduce crash kinetic energy, resulting in lower Injury Severity Score (ISS), mortality, hospital costs, and length of stay (LOS). METHODS: A retrospective review of all patients admitted to L1TCs who were injured in motor vehicle crashes along a 26-mile segment of interstate I-10 in urban Phoenix was performed. Patients were identified using both the Arizona State Trauma Registry and the Arizona Department of Transportation collision data for 2009 to 2011. This specific 26-mile segment of I-10 was selected because it contained at least one speed camera within 1 mile along its entire length from October 2008 to October 2010. Two time frames were evaluated: January 1 to December 31, 2009, when cameras were in place (2009 camera group) and January 1 to December 31, 2011, when no cameras were in place (2011 no-camera group). Variables analyzed include number of collisions, number of injuries, on-scene mortality, trauma center admissions, number of collisions with admissions, in-hospital mortality, ISS, hospital charges, LOS, age, sex, race, and ethnicity. Five confounding variables were eliminated. Analysis was performed using Fisher's exact test and linear regression. RESULTS: Camera removal was associated with a twofold increase in L1TC admissions as well as increased resource use. There were no significant differences between the two time frames for ISS, mortality, median charges, or median LOS. CONCLUSION: In this study, removal of speed cameras resulted in increased trauma center admissions and resource use. LEVEL OF EVIDENCE: Care management study, level IV.",
keywords = "Collision, Motor vehicle, Resource use, Speed camera",
author = "Jeffrey Skubic and Steven Vanhoy and Chengcheng Hu and Nirav Patel and Johnson, {Steven B.} and Christopher Salvino",
year = "2014",
doi = "10.1097/TA.0000000000000290",
language = "English (US)",
volume = "77",
pages = "193--197",
journal = "Journal of Trauma and Acute Care Surgery",
issn = "2163-0755",
publisher = "Lippincott Williams and Wilkins",
number = "2",

}

TY - JOUR

T1 - Impact of speed cameras on trauma centers

AU - Skubic, Jeffrey

AU - Vanhoy, Steven

AU - Hu, Chengcheng

AU - Patel, Nirav

AU - Johnson, Steven B.

AU - Salvino, Christopher

PY - 2014

Y1 - 2014

N2 - BACKGROUND: While studies, mostly from Europe and Australia, have examined the effect of speed cameras on motor vehicle collisions, limited data exist regarding their impact on charges and number of patients taken to Level 1 trauma centers (L1TCs). Because of conflicting perceptions and data on their value, speed cameras were implemented along select Arizona highways in 2008 but then removed in 2010. The hypotheses of our study were twofold. (1) Speed cameras reduce admissions to L1TCs, and (2) speed cameras reduce crash kinetic energy, resulting in lower Injury Severity Score (ISS), mortality, hospital costs, and length of stay (LOS). METHODS: A retrospective review of all patients admitted to L1TCs who were injured in motor vehicle crashes along a 26-mile segment of interstate I-10 in urban Phoenix was performed. Patients were identified using both the Arizona State Trauma Registry and the Arizona Department of Transportation collision data for 2009 to 2011. This specific 26-mile segment of I-10 was selected because it contained at least one speed camera within 1 mile along its entire length from October 2008 to October 2010. Two time frames were evaluated: January 1 to December 31, 2009, when cameras were in place (2009 camera group) and January 1 to December 31, 2011, when no cameras were in place (2011 no-camera group). Variables analyzed include number of collisions, number of injuries, on-scene mortality, trauma center admissions, number of collisions with admissions, in-hospital mortality, ISS, hospital charges, LOS, age, sex, race, and ethnicity. Five confounding variables were eliminated. Analysis was performed using Fisher's exact test and linear regression. RESULTS: Camera removal was associated with a twofold increase in L1TC admissions as well as increased resource use. There were no significant differences between the two time frames for ISS, mortality, median charges, or median LOS. CONCLUSION: In this study, removal of speed cameras resulted in increased trauma center admissions and resource use. LEVEL OF EVIDENCE: Care management study, level IV.

AB - BACKGROUND: While studies, mostly from Europe and Australia, have examined the effect of speed cameras on motor vehicle collisions, limited data exist regarding their impact on charges and number of patients taken to Level 1 trauma centers (L1TCs). Because of conflicting perceptions and data on their value, speed cameras were implemented along select Arizona highways in 2008 but then removed in 2010. The hypotheses of our study were twofold. (1) Speed cameras reduce admissions to L1TCs, and (2) speed cameras reduce crash kinetic energy, resulting in lower Injury Severity Score (ISS), mortality, hospital costs, and length of stay (LOS). METHODS: A retrospective review of all patients admitted to L1TCs who were injured in motor vehicle crashes along a 26-mile segment of interstate I-10 in urban Phoenix was performed. Patients were identified using both the Arizona State Trauma Registry and the Arizona Department of Transportation collision data for 2009 to 2011. This specific 26-mile segment of I-10 was selected because it contained at least one speed camera within 1 mile along its entire length from October 2008 to October 2010. Two time frames were evaluated: January 1 to December 31, 2009, when cameras were in place (2009 camera group) and January 1 to December 31, 2011, when no cameras were in place (2011 no-camera group). Variables analyzed include number of collisions, number of injuries, on-scene mortality, trauma center admissions, number of collisions with admissions, in-hospital mortality, ISS, hospital charges, LOS, age, sex, race, and ethnicity. Five confounding variables were eliminated. Analysis was performed using Fisher's exact test and linear regression. RESULTS: Camera removal was associated with a twofold increase in L1TC admissions as well as increased resource use. There were no significant differences between the two time frames for ISS, mortality, median charges, or median LOS. CONCLUSION: In this study, removal of speed cameras resulted in increased trauma center admissions and resource use. LEVEL OF EVIDENCE: Care management study, level IV.

KW - Collision

KW - Motor vehicle

KW - Resource use

KW - Speed camera

UR - http://www.scopus.com/inward/record.url?scp=84905026675&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84905026675&partnerID=8YFLogxK

U2 - 10.1097/TA.0000000000000290

DO - 10.1097/TA.0000000000000290

M3 - Article

C2 - 25058240

AN - SCOPUS:84905026675

VL - 77

SP - 193

EP - 197

JO - Journal of Trauma and Acute Care Surgery

JF - Journal of Trauma and Acute Care Surgery

SN - 2163-0755

IS - 2

ER -