Table 3.

Results for Primary and Secondary Subjective Sleep Outcomes

	Sleep Efficiency (SE)	Sleep Quality (SQ)	Total Wake Time (TWT)	Sleep Onset Latency (SOL)	Wake After Sleep Onset (WASO)
Fixed Effects
Intercept	83.2(1.3)**	2.2(0.1)**	82.3(6.6)**	32.2(3.1)**	31.4(3.1)**
Group	6.9(2.6)**	<0.1(0.1)	−40.3(13.4)	−13.0(6.4)*	−6.0(6.3)
Age	0.3(0.1)*	<0.1(<0.1)	−1.2(0.6)	−0.5(0.3)	0.01(0.3)
Stage	−2.6(2.9)	−0.3(0.1)	21.7(14.5)	9.6(6.9)	8.1(6.8)
Rate of Change
Occasion (Linear)	0.5(0.1)**	<0.1(<0.1)	2.8(0.7)**	−1.2(0.3)**	−1.7(0.6)**
xGroup	0.2(0.2)	<0.1(<0.1)	−0.8(1.5)	−0.3(0.7)	−0.3(1.1)
Random Effects
Residual	36.5(7.4)**	0.1(<0.1)**	819.23(324.9)**	261.7(75.7)**	202.1(66.6)**
Intercept	38.2(13.5)**	0.1(<0.1)**	1001.9(338.5)**	200.3(77.8)**	192.0(72.6)**
Occasion (Linear)	***	<0.1(<0.1)	5.9(7.9)	0.3(1.1)	6.6(2.9)*
Fit Statistics
2LL (null)	613.2	112.3	925.0	792.9	821.7
2LL (final)	548.5	96.3	831.6	717.2	738.0
Δχ2	64.7**	16.0**	93.4**	75.7**	83.8**

Note. Subjective sleep data was derived from two-week sleep diaries completed by participants at each study timepoint.

^*p≤0.05.

^**p≤0.01.

^***Unable to calculate due to resulting problems with the final hessian matrix. Standard errors are in parentheses.