Table IV.

Multilevel Model Predicting Daily Ecological Momentary Assessment Subjective Sleep Quality (N = 87 with 1772 observations)

	β	SE	t	p
Level 2: between-person variables
Age	−1.42	0.57	−2.49	.02*
Sex	6.74	3.27	2.06	.04*
EMA—pain severity mean	−0.01	0.10	−0.10	.92
Level 1: within-person variables
EMA—pain severity previous day	−0.06	0.02	−2.27	.02*
Interactions
Age×EMA—pain severity mean	−0.02	0.03	−0.83	.41
Age×EMA—pain severity previous day	−0.01	0.01	−1.52	.13

Note. The model controls for SCD genotype, current hydroxyurea prescription, and positive and negative mood. Level 2 EMA variables are all person-centered means. Level 1 EMA pain severity variable is from the evening report referencing pain the previous day. EMA = ecological momentary assessment; SCD = sickle cell disease; SE = standard error.

^* p < .05.