Study | Quality assessment criteria | QA score | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | ||
BMI | ||||||||||
Courtemanche 2011 [57] | 0 | 1 | 0 | 2 | 1 | 1 | 1 | 1 | 1 | 8 |
Rabin et al. 2007 [58] | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 1 | 1 | 5 |
Sun et al. 2015 [59] | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 1 | 1 | 5 |
Mean (BMI studies) | 6 | |||||||||
Physical activity | ||||||||||
Hou et al. 2011 [60] | 1 | 1 | 0 | 1 | 0 | 1 | 1 | 1 | 1 | 7 |
Sen 2012 [61] | 0 | 1 | 0 | 2 | 1 | 1 | 1 | 1 | 1 | 8 |
Sen et al. 2014 [62] | 0 | 1 | 0 | 2 | 0 | 1 | 1 | 1 | 1 | 7 |
Mean (PA studies) | 7.3 | |||||||||
Cycling | ||||||||||
Buehler & Pucher 2012 [63] | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 5 |
Dill & Carr 2003 [68] | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 1 | 0a | 4 |
Pucher & Buehler 2006 [67] | 0 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 6 |
Rashad 2009 [64] | 0 | 1 | 0 | 2 | 0 | 1 | 1 | 1 | 1 | 7 |
Smith & Kauermann 2011 [65] | 0 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 7 |
Mean (cycling studies) | 5.8 | |||||||||
Walking | ||||||||||
Ryley 2008 [66] | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 4 |
Mean QA for all study inclusions | 6 |