@article {1546,
	title = {Bootstrap-based inference on the difference in the means of two correlated functional processes.},
	journal = {Stat Med},
	volume = {31},
	year = {2012},
	month = {2012 Nov 20},
	pages = {3223-40},
	abstract = {<p>We propose nonparametric inference methods on the mean difference between two correlated functional processes. We compare methods that (1) incorporate different levels of smoothing of the mean and covariance; (2) preserve the sampling design; and (3) use parametric and nonparametric estimation of the mean functions. We apply our method to estimating the mean difference between average normalized δ power of sleep electroencephalograms for 51 subjects with severe sleep apnea and 51 matched controls in the first 4  h after sleep onset. We obtain data from the Sleep Heart Health Study, the largest community cohort study of sleep. Although methods are applied to a single case study, they can be applied to a large number of studies that have correlated functional data.</p>},
	keywords = {Biostatistics, Cohort Studies, Confidence Intervals, Humans, Models, Statistical, Sleep Apnea Syndromes, Statistics, Nonparametric},
	issn = {1097-0258},
	doi = {10.1002/sim.5439},
	author = {Crainiceanu, Ciprian M and Staicu, Ana-Maria and Ray, Shubankar and Punjabi, Naresh}
}
