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Table 4 Quality assessment of included interventions

From: Promoting active travel to school: a systematic review (2010–2016)

Intervention A. Selection Bias (Q1) A. Selection Bias (Q2) A SCORE B. Study Design B SCORE C. Confounders (Q1) C. Confounders (Q2) C SCORE D. Blinding (Q1) D. Blinding (Q2) D SCORE E. Data Collection Methods (Q1) E. Data Collection Methods (Q2) E SCORE F. Withdrawals and Drop-outs (Q1) F. Withdrawals and Drop-outs (Q1) F SCORE Global Rating
Healthy Homework [39] 4 3 * 3 ** 2 n/a *** 3 3 ** 1 3 ** 2 5 ** **
It’s Your Move! [38] 4 5 * 3 ** 2 n/a *** 3 1 ** 1 3 ** 1 2 ** **
Safe Routes to School – Texas [29] 3 5 * 3 ** 2 n/a *** 3 1 ** 1 1 *** 2 1 *** **
Walking School Bus - Missouri [31] 3 3 * 3 ** 2 n/a *** 3 3 ** 1 1 *** 4 5 ** **
Beat the Street [42] 3 1 * 5 ** 3 4 * 1 1 * 2 3 * 1 3 * *
DOiT [32] 4 1 * 1 *** 1 3 * 1 3 ** 1 1 *** 1 1 *** *
Drop-Off [33] 3 3 * 6 ** 3 4 * 1 1 * 1 3 ** 2 1 *** *
Health In Adolescents [34] 3 3 * 1 *** 2 n/a *** 3 3 ** 1 1 *** 2 3 * *
Nevada Moves Day [26] 3 1 * 3 ** 2 n/a *** 3 3 ** 3 3 * 4 4 * *
Ride2School [7] 3 5 * 5 ** 3 4 * 1 1 * 3 3 * 2 1 *** *
Safe Routes to School - Eugene [27] 3 4 * 7 * 3 n/a * 3 3 ** 1 3 ** 4 4 * *
Safe Routes to School - Hawaii [28] 3 5 * 3 ** 1 4 * 3 3 ** 1 1 *** 4 5 ** *
School Travel Planning - Canada [41] 3 4 * 5 ** 3 4 * 3 3 ** 1 1 *** 1 3 * *
School Travel Plans - New Zealand [40] 4 3 * 7 * 3 4 * 3 3 ** 1 1 *** 3 4 * *
Stockholm County Implementation [35] 3 3 * 3 ** 1 3 * 1 1 * 1 1 *** 2 1 *** *
Traveling Green [37] 3 5 * 3 ** 3 4 * 3 3 ** 1 1 *** 3 4 * *
Trygog Sikker Skolecykling [36] 4 5 * 3 ** 1 3 * 3 1 ** 3 3 * 2 1 *** *
Walking School Bus - Houston [30] 3 5 * 1 * 1 3 * 3 3 ** 1 1 *** 2 1 *** *
  1. * = weak; ** = moderate; *** = strong