. Author manuscript; available in PMC: 2016 May 1.

Published in final edited form as: Psychosom Med. 2015 May;77(4):392–401. doi: 10.1097/PSY.0000000000000178

Table 3. Fixed Effect Regression Examining Within Person Change in Average PA and NA on Within Person Change in Log Transformed Cortisol (μg/dl) from Time 1 to Time 2. N = 166.

	Model 1 Diurnal Cortisol Slope		Model 2 Bedtime Cortisol

	β	SE	β	SE
Affect variables
PA – high arousal	-.038^**	.015	-.661^*	.295
PA – low arousal	.021	.015	.111	.305
NA – high arousal	-.009	.105	-.387	.380
NA – low arousal	.021	.019	.508	.347
Health covariates
Mean wake time	-.009^*	.004	-.209^**	.077
Average hours of sleep	-.005	.005	-.153	.105
Nicotine use	.053^**	.019	1.131^**	.358
Oral contraceptive use	.021^*	.010	.213	.173

	R² within = .160		R² within = .208

Note. Multiply cortisol values (μg/dL) by 27.59 to obtain nmol/L.

^**

p < 0.01,

p < 0.05,

^†

p < 0.1