The effect of surgery on the outcome of treatment for multidrug-resistant tuberculosis: a systematic review and meta-analysis

Table 4 Risk of bias using the Cochrane Collaboration tool for prospective cohort studies (n = 2 studies)^a

First author, year of publication	Sequence generation	Allocation concealment	Blinding of participants, personnel and outcome assessors - primary outcome	Incomplete outcome data - primary outcome	Selective outcome reporting	Other sources of bias
Gegia 2012 [35]	Unclear	Unclear	No	No	No	Yes
Sklyuev 2013 [27]	Unclear	Unclear	No	No	No	Yes

^a Response of “Yes” indicates that the methodological issue was appropriately addressed/managed, “No” means the issue was not managed, and “Unclear” indicates the information required to make a judgement was unclear or unavailable

ISSN: 1471-2334