Table 2: Reporting quality of individual studies according to the STROBE criteria.

Van Asseldonk et al. (2006) [29]Mansfield et al. (2011) [10]Mansfield et al. (2012) [30]Marigold et al. (2004) [26]Marigold and Eng (2006) [25]Pereira et al. (2010) [27]Peurala et al. (2007) [28]Roerdink et al. (2009) [24]Sackley (1991) [8]Proportion of studies that satisfied criteria

1a0010000102/9 (22%)
1b1111111119/9 (100%)
Background/rationale21111110118/9 (89%)
Objectives31111111119/9 (100%)
Study design400000001*01/9 (11%)
Setting501100101*15/9 (56%)
Participants6a01100111*16/9 (67%)
6b10NA00NA0NANA1/5 (20%)
Variables71111111119/9 (100%)
Data sources/measurement81111111108/9 (89%)
Bias90011100104/9 (44%)
Study size100000000000/9 (0%)
Quantitative variables111111111007/9 (78%)
Statistical methods12a1111111119/9 (100%)
12bNANANANA11NA1NA3/3 (100%)
12c110NANANANA013/5 (60%)
12dNANANANANANANA1*12/2 (100%)
12e0000000000/9 (0%)
Participants13a000000000 0/9 (0%)
13bNA10NANANANA0*12/4 (50%)
13cNANANANANANANA000/2 (0%)
Descriptive data14a11111011*18/9 (89%)
14b1101111017/9 (78%)
14cNANA0NANANANA1*12/3 (67%)
Outcome data151111111119/9 (100%)
Main results16a1111111108/9 (89%)
16bNANANANANANA1NANA1/1 (100%)
16cNANA0NANANANANANA0/1 (0%)
Other analysis17NANANANA10NA113/4 (75%)
Key results181110001105/9 (56%)
Limitations191011100116/9 (67%)
Interpretation201011100116/9 (67%)
Generalizability211110010105/9 (56%)
Funding220110001003/9 (33%)

Total score 17/2618/2719/2814/2516/2714/2614/2622/3117/30

Percentage65%67%68%56%59%54%54%71%57%

Score is based on the original study of de Haart et al. 2004 [11].