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Logo of injprevInjury PreventionVisit this articleVisit this journalSubmit a manuscriptReceive email alertsContact usBMJ
 
Inj Prev. 2000 June; 6(2): 148–150.
PMCID: PMC1730612

Measuring injury risk factors: question reliability in a statewide sample

Abstract

Background—Recently (1996–98), Colorado added 15 questions pertaining to injury related risks and behaviors to the behavioral risk factor surveillance system (BRFSS). Questions addressed bicycle helmet use, traffic crashes, exposure to violence, suicidal behavior, and gun storage.

Objective—To measure the test-retest reliability of these injury related questions.

Methods—Of 330 BRFSS participants, 229 (69%) were called a second time and reasked nine selected injury questions. Retests were completed 7–28 days after the original interview.

Results—Test-retest agreement was very high (κ >0.80) for bicycle helmet use, domestic police visits, and gun ownership. All other injury risk questions had substantial agreement (κ >0.60).

Conclusions—The injury related questions added to the Colorado BRFSS have high test-retest reliability.

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