Table 4.

Pittsburgh Sleep Quality Index Component Scores and Relationships (Spearman rho) with Actigraphy and Clinical Characteristics (n = 71)

PSQI	Total score	Comp 1 quality	Comp 2 latency	Comp 3 duration	Comp 4 efficiency	Comp 5 disturbance	Comp 6 medication	Comp 7 dysfunction
Actigraphy measures
Time in bed	−0.001	0.044	0.192	−0.225	0.142	0.089	−0.198	0.074
Sleep onset latency	0.229	0.267a	0.225	0.128	0.044	0.121	0.086	0.076
Total sleep time	−0.098	−0.007	0.167	−0.330b	0.083	−0.029	−0.175	0.018
Sleep efficiency	−0.309a	−0.225	−0.080	−0.383b	−0.090	−0.230	−0.084	−0.175
WASO%	0.344b	0.256a	0.097	0.342b	0.159	0.276a	0.075	0.167
Wakes (number)	0.175	0.028	0.097	0.138	0.049	0.224	0.017	0.116
Clinical measures
Menopause stage (pre = 0; peri = 1)	0.011	0.179	−0.004	0.089	−0.122	−0.258a	0.005	−0.174
Hot flashes or night sweats (no = 0, yes = 1)	0.027	0.048	0.206	−0.110	−0.090	0.035	−0.034	−0.196
FSH	0.018	0.027	−0.049	−0.018	−0.049	−0.020	−0.020	−0.014
Age	−0.080	0.134	−0.115	−0.066	−0.178	−0.049	−0.159	−0.176
BMI	0.267a	0.136	0.029	0.239	−0.010	0.177	0.178	0.124
Exercise days/week	−0.183	−0.244	0.192	−0.233	−0.022	−0.013	0.032	−0.389b
Depressive symptoms	0.356b	0.324b	0.022	0.144	0.038	0.322b	0.054	0.599b
Recline weekdays	−0.366b	−0.255a	−0.005	−0.648b	−0.235	0.088	−0.313a	−0.118
Recline weekends	−0.407b	−0.372b	−0.120	−0.512b	−0.307a	−0.065	−0.252a	−0.137

^a p ≤ 0.05.

^b p ≤ 0.01.

Comp, component of the PSQI; FSH, follicle-stimulating hormone; WASO, wake after sleep onset.