Table 3 Quality of studies included
From: N-of-1 trials in the clinical care of patients in developing countries: a systematic review
Author (date) | Sources of risk of bias | |||||||
|---|---|---|---|---|---|---|---|---|
Selection bias (random sequence generation) | Selection bias (allocation concealment) | Reporting bias (incomplete outcome data) | Reporting bias (selective reporting) | Performance bias (blinding of participants and clinicians) | Inadequate cycles (risk of error – especially type 2) | Appropriateness of treatment for design | Appropriate washout period | |
Huang, et al., (2014) [32] | Lowa | Low | Low | Low | Low | Low | Unclear | Low |
Yuhong, et al.,(2012) [33] | Low | Low | Low | Low | Unclear | Low | Unclear | High |
Wang et al., (2010) [35] | Low | Low | Low | Low | Low | Low | Unclear | High |
Yu, et al., (2012) [36] | Low | Unclear | Low | Low | High | Low | Unclear | High |
Zhang, et al., (2012) [37] | Low | Unclear | Low | Low | High | Low | Unclear | High |
Louly, et al., (2009) [34] | Low | Low | Low | Low | Low | Low | Low | Low |