Development of a US Child-Focused Motor Vehicle Crash Surveillance System: A Pilot Study.

The Center for Injury Research and Prevention, The Children's Hospital of Philadelphia, The Department of Pediatrics, University of Pennsylvania School of Medicine.
Annals of advances in automotive medicine 01/2011; 55:33-40.
Source: PubMed


Current motor vehicle crash (MVC) surveillance systems, in particular the National Automotive Sampling System (NASS), either do not contain sufficient numbers of children, or do not contain child-specific data needed to support policy and prevention efforts. The objective of this pilot study was to develop and evaluate methods that could be utilized for supplemental child-specific data collection on a sample of cases identified through the NASS-GES program. Procedures were developed to identify a sample of police accident reports (PARs) involving child occupants for supplemental collection of child-specific data via three survey modes: phone, web-based and hard-copy self administered. Contact was initiated with 650 eligible parent drivers and surveys were completed by 156 (24.0%). Response rates were highest for telephone-based surveys (41.0% of those initially contacted by phone). Surveys were completed via the web by only 6.1% of those invited to do so. Overall agreement between survey and PAR data was good to excellent. Results of this pilot study indicate that creating procedures to identify cases for supplemental child-specific data collection based on the NASS-GES system is feasible. In order to sustain a supplemental child-focused data collection system that relies on identification of cases from NASS-GES, efforts must be made to enhance contact procedures in order to optimize response rates.

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Available from: Allison Curry, Mar 19, 2015
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    ABSTRACT: Background Police crash reports have been used to advance motor vehicle safety research, though their value is limited by their focus on the crash event rather than outcomes of the crash. Objective To develop and evaluate the effect of enhanced recruitment methods, including a monetary incentive, on response rates of drivers identified on police reports in a national MVC surveillance system. Methods The National Automotive Sampling System-General Estimates System (NASS-GES) was used to identify passenger vehicle crashes between 1 July and 30 October 2012 involving drivers ≥16 years old with at least one child occupant ≤17 years old. We collected data from the driver via self-administered hardcopy or interviewer-administered telephone surveys. Within each survey mode, half the drivers were randomly assigned to receive a small monetary incentive. Response rates were calculated overall, and by mode of survey administration and incentive condition. Results 495 drivers were eligible, and 127 completed the survey, yielding an overall response rate of 25.7% (95% CI 21.8% to 29.5%). The response rate across the two modes was higher for those who received an incentive than for those who did not (35.6% vs 15.7%, p<0.01). The highest response rate (45.9%) was for drivers allocated to the telephone survey who received an incentive. Conclusions The NASS-GES provides a surveillance system from which cases of interest can be identified and supplemental data collected via surveys of drivers identified on police reports. We adapted procedures commonly used in public health surveillance systems, including monetary incentives and branded recruitment materials, to improve driver response rates.
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