Questions | Mak et al. (2002) | Inkster et al. (2002) | Paasuke et al. (2004) | Ramsey et al. (2003) | Inkster et al. (2004) | Buckley et al. (2008) | Souza (2018) | Mak et al. (2004) | Angela fernandes et al. (2015) | Nikfekr. (2002) | Souza et al. (2011) | Mak et al. (2002) | Bishop (2005) |
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Research question | |||||||||||||
1 | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Study population | |||||||||||||
2 | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
3 | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Groups recruited from the same population and eligibility criteria | |||||||||||||
4 | Yes | Yes | Yes | Yes | No | Nr | Yes | Nr | No | Cd | Nr | Nr | Cd |
Sample size justification | |||||||||||||
5 | Yes | Yes | Yes | Nr | Nr | Yes | Yes | Yes | Nr | Nr | Yes | Yes | Nr |
Exposure assessed prior to outcome measurement | |||||||||||||
6 | No | No | No | No | No | No | No | No | No | No | No | No | No |
Sufficient time frame to see an effect | |||||||||||||
7 | No | No | No | No | No | No | No | No | No | No | No | No | No |
Different levels of exposure of interest | |||||||||||||
8 | Na | Na | Na | Na | Na | Na | Na | Na | Na | Na | Na | Na | Na |
Exposure measures and assessment | |||||||||||||
9 | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Repeated exposure assessment | |||||||||||||
10 | Na | Na | Na | Na | Na | Na | Na | Na | Na | Na | Na | Na | Na |
Outcome measures | |||||||||||||
11 | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Blinding of outcome assessors | |||||||||||||
12 | No | No | No | No | No | No | No | No | No | No | No | No | No |
Follow up rate | |||||||||||||
13 | Na | Na | Na | Na | Na | Na | Na | Na | Na | Na | Na | Na | Na |
Statistical analysis | |||||||||||||
14 | Cd | Yes | Yes | Yes | Yes | Yes | Cd | Cd | Yes | Yes | Cd | Cd | Yes |
50% | 50% | 57% | 50% | 43% | 50% | 50% | 43% | 43% | 43% | 43% | 43% | 43% | |
Fair | Good | Good | Good | Fair | Fair | Fair | Poor | Fair | Fair | Poor | Poor | Fair |