Table 3.

Adjusted linear regression models examining the cross-sectional relationships between marital status (at time of sleep study) and sleep outcomes

SELF-REPORT	Married	Unmarried‡	P-value
Sleep Quality
Complaints (PSQI)	REF	0.06 (0.39)	0.22
POLYSOMNOGRAPHY
SL (minutes) †	REF	0.10 (0.16)	0.09
WASO (minutes) †	REF	0.02 (0.02)	0.75
ACTIGRAPHY
SL (minutes) †	REF	0.04 (0.08)	0.45
WASO (minutes) †	REF	0.13 (0.15)	0.02
Fragmentation Index+	REF	0.08 (1.94)	0.15

^‡Values are: Standardized β coefficients (Unstandardized β coefficients). Model adjusted for age, race, financial strain, menopausal status, use of medications that affect sleep, body mass index, and depressive symptoms.

^†Natural log transformed prior to analyses. For dummy-coded variables (i.e., marital status), the unstandardized β coefficient indicates the value of the increase or decrease in the predicted outcome relative to the referent group (married), after adjustment for covariates.

⁺Higher scores reflect greater movement during the sleep period (range 0-150).