Trial Characteristics and Appropriateness of Statistical Methods Applied for Design and Analysis of Randomized School-Based Studies Addressing Weight-Related Issues: A Literature Review
المؤلفون المشاركون
Faith, Myles S.
Wylie-Rosett, Judith
Dickinson, Stephanie
Nair, Singh R.
Glassman, Nancy R.
Martin, Sarah N.
Allison, David B.
Heo, Moonseong
Pietrobelli, Angelo
المصدر
العدد
المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-7، 7ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2018-06-25
دولة النشر
مصر
عدد الصفحات
7
التخصصات الرئيسية
الملخص EN
Objective.
To evaluate whether clustering effects, often quantified by the intracluster correlation coefficient (ICC), were appropriately accounted for in design and analysis of school-based trials.
Methods.
We searched PubMed and extracted variables concerning study characteristics, power analysis, ICC use for power analysis, applied statistical models, and the report of the ICC estimated from the observed data.
Results.
N=263 papers were identified, and N=121 papers were included for evaluation.
Overall, only a minority (21.5%) of studies incorporated ICC values for power analysis, fewer studies (8.3%) reported the estimated ICC, and 68.6% of studies applied appropriate multilevel models.
A greater proportion of studies applied the appropriate models during the past five years (2013–2017) compared to the prior years (74.1% versus 63.5%, p=0.176).
Significantly associated with application of appropriate models were a larger number of schools (p=0.030), a larger sample size (p=0.002), longer follow-up (p=0.014), and randomization at a cluster level (p<0.001) and so were studies that incorporated the ICC into power analysis (p=0.016) and reported the estimated ICC (p=0.030).
Conclusion.
Although application of appropriate models has increased over the years, consideration of clustering effects in power analysis has been inadequate, as has report of estimated ICC.
To increase rigor, future school-based trials should address these issues at both the design and analysis stages.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Heo, Moonseong& Nair, Singh R.& Wylie-Rosett, Judith& Faith, Myles S.& Pietrobelli, Angelo& Glassman, Nancy R.…[et al.]. 2018. Trial Characteristics and Appropriateness of Statistical Methods Applied for Design and Analysis of Randomized School-Based Studies Addressing Weight-Related Issues: A Literature Review. Journal of Obesity،Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1196050
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Heo, Moonseong…[et al.]. Trial Characteristics and Appropriateness of Statistical Methods Applied for Design and Analysis of Randomized School-Based Studies Addressing Weight-Related Issues: A Literature Review. Journal of Obesity No. 2018 (2018), pp.1-7.
https://search.emarefa.net/detail/BIM-1196050
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Heo, Moonseong& Nair, Singh R.& Wylie-Rosett, Judith& Faith, Myles S.& Pietrobelli, Angelo& Glassman, Nancy R.…[et al.]. Trial Characteristics and Appropriateness of Statistical Methods Applied for Design and Analysis of Randomized School-Based Studies Addressing Weight-Related Issues: A Literature Review. Journal of Obesity. 2018. Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1196050
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1196050
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر