“…[26][27][28]30,32,33 Despite the relatively large number of subjects included in these trials, not all the studies reported the outcomes of interest, and, therefore, a smaller number of subjects were involved in some of the individual outcomes. Notably, most studies excluded patients who had recent use of prednisone, 26,27,30,33 required admission to an ICU, 26,27,31,33 or had an exacerbation within 30 d of admission. 30,32,33 Overall, the quality of the included trials was low to moderate; results for the risk of bias are shown in Appendix 3.…”