From: Effect of physical training on airway inflammation in bronchial asthma: a systematic review
Source | Selection bias | Information bias | Confounding | Appropriate sample size | Appropriate analytic strategies |
---|---|---|---|---|---|
Emtner M et al. 1998 | Low risk | Low risk | Low risk | Unclear risk | Appropriate |
Emtner M et al. 1996 | Low risk | Low risk | Low risk | Unclear risk | Appropriate |
Engstom I, et al. 1991 | Unclear risk | Low risk | Low risk | Unclear risk | Appropriate |
Juvonen R, et al. 2008 | Low risk | Low risk | Low risk | Unclear risk | Appropriate |
Newcomb, P. et al. 2012 | Unclear risk | Low risk | Low risk | Unclear risk | Appropriate |
Nickerson BG et al., 1983 | Low risk | Low risk | Low risk | Unclear risk | Appropriate |
Silva PL, et al. 2011 | Low risk | Low risk | Low risk | Low risk | Appropriate |