. Author manuscript; available in PMC: 2015 Jun 1.

Published in final edited form as: Sleep Med. 2014 Mar 6;15(6):688–693. doi: 10.1016/j.sleep.2014.02.003

Table 3.

Associations between hormone levels and polysomnographic sleep fragmentation

		ln WASO%				lnWake-Index
Hormone Measure	n	β	95% CI	p	R²	β	95% CI	p	R²
Concurrent Progesterone (ng/dL)	27	.019	−.025−.062	.38	.031	.013	−.020−.047	.42	.027
Progesterone Slope (ng/dL per day)	23	.635	0.13–1.1	.02	.248	.364	−.06−.78	.08	.134
Concurrent Estradiol (pg/ml)	27	.002	−.002−.006	.27	.070	.002	−.002−.005	.33	.057
Concurrent Estrone (pg/ml)	27	.008	.001−.015	.03	.180	.007	.002−.012	.01	.223

lnWASO% = natural log transformation of WASO as a percent of sleep period time

lnWake-Index = natural log transformation of the number of awakenings per hour of sleep

Progesterone slope = change in progesterone level subtracting follicular draw from concurrent/PSG2 divided by number of days between blood draws