[原著］Reproducibility of a health risk behavior questionnaire among high school students in Okinawa, Japan

概要

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Objectives: This study examined the test-retest reliability of a health-risk behavior questionnaire among high school students in Okinawa, Japan. Methods: A sample of 120 students in grades 10 and 11 (ages 15-17) at a public senior high school in Okinawa, Japan, completed a self-administered anonymous questionnaire on two occasions, two weeks apart, for test-retest reliability assessment. Health-risk behaviors were measured using question items adapted from the Youth Risk Behavior Survey developed by the US Centers for Disease Control and Prevention. Kappa statistics and percentage agreement of the question items were assessed. Results: Kappa statistics ranged from 0.20 to 1.0, with a mean of 0.63. 56% of the items had substantial reliability (kappas≧61%), and 89% of the items had at least moderate reliability (kappas≧41%). Percentage agreement ranged from 75% to 100%, with a mean of 92.9%. 90% of the items revealed over 80% agreement. The values of kappa and percentage agreement did not differ by gender and grade. Seven-day recall questions had lower reliability compared with other time frames. Conclusion: The health-risk behavior questions had acceptable test-retest reliability.
琉球医学会,Ryukyu Medical Associationの論文