Osteopathic intervention in chronic non-specific low back pain: a systematic review

Table 1 Assessment for sources of risk of bias [13]

1	Randomisation adequate?	Yes/No/Unsure
2	Concealed treatment allocation?	Yes/No/Unsure
3	Patient blinded?	Yes/No/Unsure
4	Care provider blinded?	Yes/No/Unsure
5	Outcome assessor blinded?	Yes/No/Unsure
6	Drop out rate described?	Yes/No/Unsure
7	Participants analysed within group?	Yes/No/Unsure
8	Free of selective outcome reporting?	Yes/No/Unsure
9	Groups similar at baseline?	Yes/No/Unsure
10	Co-interventions avoided/similar?	Yes/No/Unsure
11	Compliance acceptable?	Yes/No/Unsure
12	Timing of outcome similar?	Yes/No/Unsure

ISSN: 1471-2474