Author reply: independent of other exercise, walking decreased risk of cardiovascular disease mortality in older adults with diabetes

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• 作者：Tyler C. Smith ; Deborah L. Wingard ; Besa Smith ; Donna Kritz-Silverstein ; Elizabeth Barrett-Connor
• 关键词：Agreement ; Screening ; Community ; Index ; Nutrition ; Older adults
• 刊名：Journal of Clinical Epidemiology
• 出版年：2007
• 期刊代码：148_08954356
• 类别：med
• 出版时间：October 2007
• 卷：60
• 期：10
• 页码：1090-1091
• 文件大小：60 K

摘要

SCREEN II is a valid and reliable (test–retest and interrater) nutrition risk-screening index for community-living older adults (50+ years). This questionnaire is preferably self-administered but can be administered by the interviewer for frailer adults who require assistance. Intermode agreement is necessary to determine if mode of administration is interchangeable.

Study Design and Setting

One hundred and thirty-four older adults completed the 17-item questionnaire twice within a 2-week interval in random order; 98 complete questionnaires were available for full analysis. Interviewer administration was completed over the telephone. Intraclass correlation and kappa coefficients were calculated to determine agreement.

Results

There is very good agreement between overall self- and telephone-administered SCREEN II scores (intraclass correlation coefficient = 0.74). When using a cut-point (score <50) to identify those at risk of malnutrition, agreement is good (κ = 0.53). Increasing age appears to consistently affect agreement. Individual questions which had poorer agreement included: food/fluid intake questions, supplement use, and intention to change weight.

Conclusion

The self- and interviewer-administered SCREEN II can be used interchangeably in practice or research, if total scores or the risk cutoff are used. Comparison of individual questions completed in different modes is not recommended.