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. Author manuscript; available in PMC: 2022 Aug 5.
Published in final edited form as: Sleep Med. 2019 Jul 23;65:134–141. doi: 10.1016/j.sleep.2019.07.014

Figure 2:

Figure 2:

(a) Mean morning FEV1 by treatment and day (bars), with 95% confidence intervals (error bars). Estimates were derived from longitudinal models discussed in the text. (b) Mean difference in morning FEV1, Long versus Short, by day, with 95% confidence intervals. Results show that the biggest mean differences occurred on Days 1 and 2.