Trial Characteristics and Appropriateness of Statistical Methods Applied for Design and Analysis of Randomized School-Based Studies Addressing Weight-Related Issues: A Literature Review

Table 1

Reasons for exclusion.

Reasons	N	%
Single-school trial	49	34.5
Protocol paper	36	25.4
Baseline or subgroup analysis of a parent study	27	19.0
Not a randomized trial	18	12.7
Students of age beyond the age range	7	4.9
Not a school-based trial	5	3.5
Total	142

Note. Although it is possible that studies could be excluded for multiple reasons, we classified the reasons in a mutually exclusive manner.