Table 1

Risk of bias within randomized control trials
Source Randomization Allocation concealment Blinding of participants & personnel Blinding of outcome assessment Incomplete outcome data Selective reporting
Bonsignore MR et al. 2008 Low risk Unclear risk Low risk Low risk Low risk Unclear risk
Boyd, A. et al. 2011 Low risk Unclear risk Low risk Low risk Low risk Unclear risk
Bundgaard A, et al. 1982 Unclear risk Low risk Low risk Low risk Low risk Unclear risk
Cochrane LM et al. Low risk Low risk Low risk Low risk Low risk Unclear risk
Emtner, M. et al. 1998 Low risk Unclear risk Low risk Low risk Low risk Unclear risk
Fanelli A, et al. 2007 Low risk Low risk Low risk Low risk Low risk Unclear risk
Fitch, KD et all, 1986 Unclear risk Unclear risk Low risk Low risk Low risk Unclear risk
Gunay, O. et al. 2012 Unclear risk Low risk Low risk Low risk Low risk Unclear risk
Henriksen JM, et al. 1983 Unclear risk Low risk Low risk Low risk Low risk Unclear risk
Matsumoto I, et al. 1997 Low risk Unclear risk Low risk Low risk Low risk Unclear risk
Mendes, et al. 2011 Low risk Low risk Low risk Low risk Low risk Unclear risk
Moreira, A et al. 2008 Low risk Low risk Low risk Low risk Low risk Unclear risk
Neder JA, et al. 1999 Unclear risk Low risk Low risk Low risk Low risk Unclear risk
Onur E, et al. 2011 Unclear risk Low risk Low risk Low risk Low risk Unclear risk
Sly RM, et al. 1972 Unclear risk Unclear risk Low risk Low risk Low risk Unclear risk
Svenonius E, et al. 1983 Unclear risk Low risk Low risk Low risk Low risk Unclear risk

Pakhale et al.

Pakhale et al. BMC Pulmonary Medicine 2013 13:38   doi:10.1186/1471-2466-13-38

Open Data