PubMed · 7228774
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H W Hannah. 1981-02-01. Keep your premises safe.. https://pubmed.ncbi.nlm.nih.gov/7228774/
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This paper describes the development of the "Chicago Children's Supervision Taxonomy" which operationally defines supervision based on the age of an injured child and the ages, familiarity, and proximity of that child's companions. The reliability, coverage, and utility of this taxonomy are illustrated by its application to 142 cases of urban childhood pedestrian injury. All cases were unambiguously classified with good interrater reliability. Most injured children were in unsupervised groups (42%) but 36% had supervisors nearby, thus, supervisor presence does not guarantee protection. Supervising more than one child (especially likely when the supervisor was a teenager) may increase injury risk compared with one-to-one supervision. The taxonomy provides a needed framework adaptable for describing direct supervision in most child injury situations and can facilitate studies of more complex aspects of supervision.
OBJECTIVES: To evaluate how using a wheelchair with rear-wheel camber (when the bottoms of the wheels are farther apart than the tops) is associated with the risk of instability incidents, and to determine the effect of camber on wheelchair stability. DESIGN, SETTING, PATIENTS: Epidemiologic data were analyzed from a sample of 576 users of manually propelled wheelchairs in Nova Scotia. A controlled trial was performed using a representative wheelchair occupied by an anthropomorphic test dummy, altering the camber in 5 degrees increments from -15 degrees to +15 degrees. MAIN OUTCOME MEASURES: For the epidemiologic study, univariate and multivariate analyses were used. To measure the static stability, a tilting platform was used according to the guidelines of the International Organization for Standardization. RESULTS: Camber users reported significantly more instability incidents; of these incidents, more were in the rear direction (40% vs 27%) and fewer in the lateral direction (17% vs 28%) (p < .01). When controlling for other factors, camber was associated with a 3.91-fold increased risk of sustaining an instability incident (p < .001). With increases in camber angle in the laboratory, lateral and forward stability increased and rear stability decreased (with the wheels unlocked and locked) (p < .001). CONCLUSION: Camber use is negatively associated with instability incidents in the lateral direction and positively associated with incidents in the backward direction, probably due in part to the effects of camber on lateral and rear stability.
OBJECTIVE: Child health care providers have a unique opportunity to conduct injury prevention counseling but limited empirical evidence for choosing prevention strategies. Efficient use of time requires that prevention strategies of higher priority be discussed before lower priority strategies. Our aim was to assess consensus among experts about the prioritization of prevention strategies for office based injury prevention counseling for parents of children under age two. DESIGN: We used a modified Delphi technique with 23 childhood injury prevention experts nationwide. Participants were blinded to the identities of each other. MEASURES: The first questionnaire, distributed via facsimile transmission, consisted of open ended questions about prevention strategies participants believe should be included and their prioritization methods. The second questionnaire was closed ended and based on the results of the first. RESULTS: Seventeen injury problems and 21 prevention strategies were suggested for counseling. Participants emphasized environmental strategies over more active, educational ones. Motor vehicle occupant injuries and car seats were given high priority scores by all participants. Smoke detectors, lowering the hot water heater temperature, and pool fencing also received high priority ratings. Participants based their decisions on the severity of the injury, the frequency with which the injury occured, and the availability of environmental strategies. However, they disagreed about the relative importance of these factors. Time constraints and parents' inability to absorb information led them to suggest limiting, to fewer than four, the number of prevention strategies addressed at any one visit. CONCLUSIONS: This study illustrates areas of consensus as well as unresolved dilemmas about pediatric injury prevention counseling. A rational decision making approach to prioritizing elements of clinical counseling is needed. Meanwhile, clinicians can use the findings of this study to derive their own judgments.