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. 2016 Nov 15;17:152. doi: 10.1186/s12931-016-0461-1

Table 3.

Estimated exacerbation rates of RCT and EHR data

Population Analysis Rate Lower 95% CI Upper 95% CI
RCT (placebo) Unweighted 0.90 0.76 1.08
EHR Weighted 1.24 0.94 1.63
EHR Unweighted 1.86 1.70 2.05

Weighted and unweighted exacerbation rates for the EHR population (n = 240) and unweighted exacerbation rate for placebo arm in the RCT (n = 151)