. Author manuscript; available in PMC: 2019 Oct 1.

Published in final edited form as: Arch Womens Ment Health. 2018 Mar 30;21(5):583–586. doi: 10.1007/s00737-018-0836-z

Table 2.

Pre- and -Post Treatment Measures

Measure	Pre-treatment M (SD)	Post-treatment M (SD)	t	df	Hedges’ effect size g
SIGH-SAD^a	22.13 (3.87)	11.25 (6.65)	6.23^***	7	1.89
EPDS^a	11.75 (3.62)	7.25 (6.86)	2.87	7	0.78
Diary TST (h:m)	6:38 (1:31)	7:17 (1:19)	1.38	7	0.42
Diary SE (%)	77.38 (10.07)	82.63 (12.75)	2.87^*	7	0.43
Actigraphy TST (h:m)	6:56 (1:12)	7:00 (0:50)	0.19	6	0.06
Actigraphy SE (%)	79.69 (6.16)	83.47 (4.30)	1.47	6	0.66
DLMO (clock h:m)	20:02 (1:21)	19:56 (1:14)	0.71	7
PAD (h:m)	7:57 (0:55)	8:22 (1:11)	0.21	6

Note. SIGH-SAD= Hamilton Depression Rating Scale, Seasonal Affective Disorder version; EPDS = Edinburgh Postnatal Depression Scale; TST = total sleep time from sleep diary; SE = percent sleep efficiency from sleep diary; DLMO = dim light melatonin onset; PAD = phase angle difference between DLMO and midpoint of sleep per wrist actigraphy.

Sleep items removed from total score.

p ≤ .05,

^***

p ≤ .001.