Table 3.

Standardized regression coefficients and effect sizes for home- and laboratory-polysomnography sleep by depression severity and family structure.

	β	R2adj	P value	Cohen d
DEPRESSION SEVERITY
Home PSG
High depression (CES-D) vs low depression
REM (%)	−0.26	0.057	P<.01	−0.37
REM (min)	−0.23	0.044	P<.05	−0.34
High depression (SCID) vs low depression
REM (%)	−0.20	0.031	P<.05	−0.88
REM (min)	−0.20	0.029	P<.05	−0.85
Stage 2 (min)	−0.26	0.055	P<.01	−1.12
High depression (combined) vs low depression
REM latency (min)	0.32	0.090	P<.001	−0.71
Laboratory PSG
High depression (CES-D) vs low depression
Stage 1 (%)	0.28	0.065	P<.01	0.41
Stage 2 (%)	−0.25	0.053	P<.05	−0.35
Stage 2 (min)	−0.28	0.068	P .01	−0.43
High depression (SCID) vs low depression
REM latency (min)	0.23	0.042	P<.05	−1.13
High depression (combined) vs low depression
SWS (min)	−0.22	0.039	P<.05	−0.49
MARITAL STATUS
Home PSG
Single/no partner vs married
TST (min)	−0.30	0.081	P<.01	−0.64
WASO (min)	0.20	0.029	P<.05	0.40
Sleep efficiency (min)	−0.28	0.068	P<.01	−0.58
Stage 2 (min)	−0.27	0.063	P<.01	−0.56
REM (%)	−0.23	0.043	P<.05	−0.48
Laboratory PSG
Single vs married
Stage 1 (%)	0.27	0.060	P<.05	0.55
Stage 2 (min)	−0.28	0.067	P<.01	−0.59

Abbreviations: PSG, polysomnography; CES-D, Center for Epidemiologic Studies Depression scale; REM, rapid eye movement sleep; min, minutes; SCID, Structured Clinical Interview for Diagnostic and Statistical Manual of Mental Disorders; SWS, slow-wave sleep; TST, total sleep time; WASO, wake after sleep onset.

High depression: CES-D score of ≥8.1 (n=48).

High depression: SCID (n = 6).

High depression: combined (n=33), CES-D score of ≥ 16 + SCID + antidepressant users.