ELECTRONIC ARTICLE |


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* Department of Emergency Medicine
Department of Pediatrics
Center for Health Policy Research, University of California, Irvine, Irvine, California
| ABSTRACT |
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Methods. A prospective survey study was conducted in a 42 000-visit-per-year Level I trauma center and emergency department (ED) in Southern California from May through October 2000. Subjects were parents of ED-registered children (
6 years). Research assistants administered the survey in the subjects native language. Parent knowledge of age-appropriate restraint use and airbag safety was collected.
Results. Six hundred fifty-five subjects were enrolled. Most parents (97%) reported a regular source of pediatric medical care, and 57% had a previous ED visit. Eighty-six percent reported owning a CSS or booster seat. Eighty-one percent were aware that infants in rear-facing CSSs should never be placed in front of an airbag. Only 46% knew that a child weighing 40 to 60 lb should travel in a booster seat, and 59% knew that the State law required CSS use for children up to 4 years and weighing up to 40 lb. When knowledge scores were examined by ethnicity, fluency in English, income, and years of education, fluency was found to have the greatest influence on both CSS and airbag knowledge.
Conclusions. Although nearly all of our subjects admitted that their children had a regular source of care, many parents showed evidence of lack of knowledge of CSS and airbag safety. Furthermore, many parents were not familiar with the state law regarding child restraints. Our findings suggest that parents of small children who utilize emergency care services could benefit from child passenger safety education during their ED visit and that non-English media and materials may be important to reaching this population.
Key Words: child safety seat airbag knowledge occupant safety Hispanic
Abbreviations: ED, emergency department CSS, child safety seat NHTSA, National Highway Traffic Administration
| INTRODUCTION |
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Emergency physicians and pediatric emergency medicine specialists are confronted daily with caring for these injured children and in many cases trying to educate parents about "best" child occupant safety practices. The task of injury prevention education in the emergency department (ED) setting can be challenging. Yet most acute health care providers and traffic safety advocates affirm that this education is needed for parents, particularly in light of the growing socioeconomic and cultural diversity found in EDs today. Furthermore, researchers have found that ED populations are "high injury risk" groups, and those individuals that utilize emergency care services are at greater risk for injury and repeat ED visits for trauma.2,3 Moreover, epidemiologic studies show that children of certain minority groups are at higher risk of dying in motor vehicle crashes.4
Despite the large number of resources allocated to media campaigns, infants and young children continue to travel unrestrained, in unsafe seating positions, and in front passenger seats of airbag-equipped vehicles.57 We anticipate that this may become more of a problem as vehicles are resold to second owners. As the fleet of airbag-equipped motor vehicles age, increasing numbers of low-income families who may have lower levels of education, inability to read and speak English, larger families, and fewer resources will be using these vehicles. Therefore, there is a need to determine the level of knowledge related to airbags and safe transport of children in a population at greater risk for crash and airbag-related injury.
The objective of our study was to determine the level of child safety seat (CSS) and airbag safety knowledge in parents who utilize emergency care services for their children and determine factors that may influence knowledge associated with safe transportation of children.
| MATERIALS AND METHODS |
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Trained research assistants administered the survey in English, and trained certified interpreters administered the survey when the subjects native language was Spanish or Vietnamese. In part, the information that was obtained included subject and referent child demographics, emergency care service utilization and crash injury history, the presence of a routine source of medical care, and self-report of child and parent restraint use. Finally, parent knowledge of airbag safety, age-appropriate restraint use, and knowledge of safety equipment (presence of airbag, number of airbags and seat belts) present in the vehicle the child routinely traveled in was also obtained. Although we did not record the exact number of prospective subjects that refused to be enrolled, the refusal rate was very low. The poverty level used in our analysis was that level determined by the US Census Bureau for the year 2000.
To further investigate the influence of ethnicity, language, income, and education on child occupant safety knowledge, we constructed scales of child restraint and airbag safety based on the number of correct answers to 7 and 13 questions, respectively (Table 1). The 7 child restraint questions were based on best practice of age- and weight-appropriate CSS selection, position, and placement within the vehicle.8 Descriptive analysis of data and analysis of variance were undertaken with SPSS 10.0 for Windows (SPSS, Chicago, IL). Before subject enrollment, the study protocol was reviewed and approved by our Human Subjects Research Institutional Review Board. Enrolled subjects were compensated for their participation in the study.
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| RESULTS |
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The mean knowledge scale scores were 4.7 of 7 for the CSS questions and 8.3 of 13 for the airbag questions. In an attempt to further elucidate the contribution of ethnicity, language, income, and education on child restraint knowledge, analysis of variance was conducted (Table 3). Parents were noted to have progressively lower knowledge on both the CSS and airbag knowledge scales if they were less fluent in English, had lower income, or had fewer years of education. Those most fluent in English answered twice as many airbag knowledge questions correctly as those least fluent. Hispanic parents were found to have lower scores on both scales. When these characteristics were included in an analysis of variance, fluency in English had the strongest association with both scores. In addition, ethnicity was associated with both scores, and low income was associated with low airbag knowledge when controlling for other variables. The number of years of education was not associated with either knowledge scale when the other variables were included.
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| DISCUSSION |
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Our study population was found to be predominately Hispanic with a low annual household income and few years of formal education. The results of our study reveal a gap in child occupant protection knowledge of parents who utilize emergency care services. Only 81% of our subjects agreed that infants in rear-facing CSSs should never be placed in front of an airbag. A 1998 national survey report by the National Highway Traffic Safety Administration (NHTSA) found that 92% of individuals surveyed believed it was unsafe to position a rear-facing CSS in the front seat of an air bag-equipped car.10 The NHTSA has been warning consumers of injury risk to small children with regard to airbags since December 1991.11
Appropriate restraint selection for a 40- to 60-lb child was another area of concern. Only 46% of parents were able to identify the booster seat as the appropriate restraint to be used. A commonly cited reason for a child of this weight range not to ride in a booster is the parents perception that the child is large enough to travel safely restrained by the vehicle seat belt alone.12 Several studies point to the dangers and risks of severe crash-related injury to small children as a result of inappropriate child restraint selection and premature use of vehicle seat belts.1316
Almost all children weighing 40 to 60 lb would be included in booster seat guidelines that have been published since we designed our questionnaire.17,18 Current NHTSA guidelines recommend boosters for children weighing 40 to 80 lb and up to 57 in in height.17 More than 97% of children have a body mass index >13, the value for a child who weighs 60 lb and is 57 in in height.19
Finally, 59% of our subjects did not know California State law requirements for CSSs. At the time that our survey was administered, the child passenger safety law required that all children under 40 lb and <4 years of age use a CSS. The lack of familiarity with the California State law found in our study further points to the need for continued child occupant safety education.
Because our study population was found to be predominately Hispanic, we chose to further assess the degree to which key variables (ethnicity, fluency of English, income, and years of education) might influence CSS and airbag knowledge scale scores. When these variables were independently analyzed, they were found to have significant association with both CSS and airbag knowledge scale scores. Analysis of the variables in combination with each other revealed that fluency of English had the greatest association on both knowledge scores, with Hispanic ethnicity also having a significant yet lesser degree of association.
In addition, when other key variables were controlled for, lower income was found to be significantly associated with lower airbag knowledge. We believe that this finding represents a lack of familiarity with airbags by parents who might not have the money required to purchase and drive airbag-equipped vehicles. This finding should prompt heightened concern for lower income families who may buy and drive older airbag-equipped vehicles in the future.
Limitations
Our study was developed to assess the level of child passenger safety knowledge of parents. Although the results show that a gap in knowledge exists in our subjects, it does not speak to actual observed practice that may be less than the self report survey findings. In addition, the self report nature of the study makes it difficult to relate the level of knowledge to the extent of "best" practice used by parents. Because our study population is heterogeneous and in some respects unique as a result of our geographic location, generalizability of our findings are a challenge.
| CONCLUSION |
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| ACKNOWLEDGMENTS |
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We thank Elizabeth Perez and the UCI Emergency Medicine Research Associates Program for their contributions.
| FOOTNOTES |
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Reprint requests to (F.V.) UCI Medical Center, 101 The City Drive, Rte 128, Orange, CA 92868. E-mail: fevaca{at}uci.edu
| REFERENCES |
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M Martin, J Holden, Z Chen, and K Quinlan Child passenger safety for inner-city Latinos: new approaches from the community. Inj. Prev., April 1, 2006; 12(2): 99 - 104. [Abstract] [Full Text] [PDF] |
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