The effect of correct cross-chest clip use on injury outcomes in young children during motor vehicle crashes

Woodford, Evangeline; Brown, Julie; Bilston, Lynne E.

doi:10.1080/15389588.2017.1410545

Cited by 1 publication

(3 citation statements)

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“…A recent analysis of real world crash data from NASS-CDS between 2003 and 2014 (Woodford et al, 2018), reported that correctly used cross chest clips approximately halved the odds of moderate to serious injury among children aged 0-4 years, with the majority of this effect occurring in children under 12 months of age.…”

Section: Discussionmentioning

confidence: 99%

“…These results suggest that the former could not be met by either of the tested chest clips. The absence of significant additional neck loads, taken together with the lack of observed serious neck injuries associated with chest clips reported in Woodford et al (2018), suggest that any potential risk associated with this is likely minimal, and should be balanced against the potential for benefit via better retention of the harness straps on childrens' shoulders. The latter is a commonly observed form of misuse (Brown et al, 2010a).…”

Section: Discussionmentioning

confidence: 99%

“…Recently, Woodford et al (2018) analysed injury outcomes from the US National Automotive Sampling System Crashworthiness Data System and showed that for children aged 0-4 years, correct cross-chest clip use was associated with a substantially lower overall odds of significant (Abbreviated Injury Score, AIS2+) injury. They also found no serious injury induced by these clips, although the number of cases with any injury was limited.…”

Section: Introductionmentioning

confidence: 99%

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Cross-chest clips in child restraints: A crash testing study

Bilston

Kent

Brown

2019

Traffic Injury Prevention

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Cross chest clips in child restraints: A crash testing studyObjective: Cross chest clips are widely used in North American child restraints, but are less common in other countries, partially due to concerns over anterior neck contacts in frontal crashes. They have recently been reported to be associated with lower odds of injury in real world crashes but there is a paucity of crash test performance information.This study aimed to compare the dynamic performance of a small child occupant in frontal crash tests with and without cross chest clips in place. Methods:Frontal sled tests at 49km/hr were conducted to compare two cross chest clip designs to non-use of a chest clip. Tests using a P3/4 Anthropomorphic Test Device (ATD) to represent the smallest occupant in a forward-facing child restraint were conducted with the chest clips in the recommended position and also in an incorrect lower position, and with and without additional harness slack present.Results: While contacts were observed between the chest clips and the base of the ATD's neck, there was little difference observed in head excursion or ATD sensor loads in the presence of the chest clips. No detectable change in the neck forces or moments were detected at the time of the neck contacts. Position of the clips did not affect the results. Harness slack increased head excursion, as expected, but this effect did not differ between the tests with and without the clips.Conclusions: Cross chest clips do not appear to greatly influence the dynamic performance of a forward facing child restraint in a simulated frontal crash. Taken together with recent research suggesting a potential benefit in injury reduction from the clips in the real world, possibly due to maintaining the harness straps in place on a child's shoulders, it may be appropriate to re-evaluate safety standards that prevent their use.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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