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Journal Article

Citation

Alonso A, Laguna S, Segui-Gomez M. Inj. Prev. 2006; 12(2): 117-120.

Affiliation

Department of Preventive Medicine and Public Health, School of Medicine, University of Navarra, Pamplona, Spain.

Copyright

(Copyright © 2006, BMJ Publishing Group)

DOI

10.1136/ip.2005.009134

PMID

16595427

PMCID

PMC2564436

Abstract

OBJECTIVE: To compare information about traffic crash injuries and kilometers driven reported in a written questionnaire with information reported in a telephone interview. DESIGN: Telephone and paper surveys. SETTING: The Seguimiento Universidad de Navarra (SUN, University of Navarra Follow-up) study, in Spain. The SUN study is an open enrollment cohort study with 17 000 enrolled graduates followed through biennial mailed questionnaires. SUBJECTS: A sample of 542 individuals from the SUN study participants. MAIN OUTCOME MEASURE: Agreement on information about traffic crash injuries and mileage driven in a mailed questionnaire and a telephone survey. RESULTS: Participation was 90.4%. Considering the phone survey as the gold standard, data on traffic crash injuries in the mailed questionnaire had 83% sensitivity (95% CI 77% to 89%), 77% specificity (95% CI 71% to 82%), 74% positive predictive value (95% CI 67% to 80%), and 89% negative predictive value (95% CI 83% to 93%). Agreement beyond chance, measured by the kappa statistic, was 0.63 (95% CI 0.56 to 0.70). Correlation between questionnaire and telephone surveys and kilometers driven on average during a year assessed by the intraclass correlation coefficient was 0.64 (95% CI 0.57 to 0.70), p<0.001. CONCLUSIONS: Information on sustained traffic crash injuries and traveled mileage over the previous two years as reported through mailed questionnaires in a highly educated population could be used in the study of associations between traffic crash injuries and a variety of risk factors.



Language: en

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