Table 4.

Estimates for outcomes in Long and Short sleep weeks from longitudinal models. Values are composite estimates (i.e., main effects) for treatment, averaged over days, with 95% confidence intervals. [Peak Flow Meter variables are continuous, symptoms is binary, and albuterol use is a count; consequently estimates are odds for symptoms and means for other variables (see text for more detail on the methods).]

	Long Sleep	Short Sleep	L vs. S, p
Peak Flow Meter
FEV1, mean overnight change, L	−0.04 (−0.09, 0.02)	−0.07 (−0.13, −0.01)	0.31
FEV1, morning mean, L	2.73 (2.53, 2.94)	2.66 (2.46, 2.87)	0.006
PEF, mean overnight change, L/min	−16.2 (−24.0, −8.3)	−20.1 (−28.3, −12.0)	0.30
PEF, morning mean, L/min	400.2 (370.9, 429.6)	397.1 (367.8, 426.5)	0.40
Odds of Symptoms
Daytime	0.11 (0.06, 0.22)	0.26 (0.14, 0.48)	0.002
Nighttime	0.033 (0.017, 0.067)	0.060 (0.031, 0.113)	0.004
Mean albuterol use
Daytime	0.17 (0.10, 0.30)	0.20 (0.11, 0.34)	0.23
Nighttime	0.004 (0.002, 0.012)	0.009 (0.004, 0.24)	<0.0001