Table 4.

Hierarchical Linear Model for Evening Energy

Evening Energy	Coefficient (SE)
	Unconditional Model	Final Model
Fixed effects
Intercept	3.552 (.058)+	3.551 (.058)+
Piecewise 1 – linear rate of change	−0.275 (.109)*	−0.277 (.107)*
Piecewise 1 – quadratic rate of change	0.195 (.052)+	0.196 (.051)+
Piecewise 2 – linear rate of change	−0.323 (.071)+	−0.327 (.070)+
Piecewise 2 – quadratic rate of change	0.096 (.023)+	0.097 (.022)+
Time invariant covariates
Intercept
Female		−0.337 (.108)*
Nonwhite		0.372 (.097)+
Karnofsky Performance Status		0.019 (.004)+
Sleep disturbance		−0.009 (.003)*
Attentional function		0.178 (.030)+
Piecewise 1 – linear rate of change
Evening energy		−0.128 (.047)*
Piecewise 1 – quadratic rate of change
Evening energy		0.037 (.023)
Variance components
In intercept	1.462+	1.467+
Goodness-of-fit deviance (parameters estimated)	27573.766 (7)**	27365.202 (14)
Model comparison χ2 (df)		208.564 (7)+

^*p<.05,

^**p<.001,

⁺p<.0001

Abbreviations: df = degrees of freedom; SE = standard error