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. Author manuscript; available in PMC: 2018 Mar 1.
Published in final edited form as: Clin Gerontol. 2017 Dec 28;41(2):145–157. doi: 10.1080/07317115.2017.1408734

Table 3.

Association between subjective sleep questionnaires and objective sleep recordings.

Factor Total Sleep Time (mins) Sleep Efficiency (percent) Number of Nighttime Awakenings (count) Total Nighttime Time Awake (mins)
PQSI Factor 1: Sleep Efficiency −2.371
(6.845)		 .054
(.602)		 −.222
(.700)		 −.708
(3.399)
PQSI Factor 2: Perceived Sleep Quality 7.891
(6.766)		 .896
(.595)		 −1.103
(.692)		 −3.648
(3.360)
PQSI Factor 3: Daily Disturbances −10.05
(12.72)		 −.118
(1.120)		 −1.385
(1.301)		 .676
(6.318)
Insomnia Severity, ISI Total −1.537
(3.132)		 −.0481
(.276)		 .245
(.320)		 −.149
(1.555)
Observations 57 57 57 57
R2 .049 .062 .082 .052
Adjusted R2 −.024 −.011 .011 −.021

Notes: Standard errors appear in parentheses.

*

p < .05

**

p < .01

***

p < .001.