Table 2.

Hierarchical Linear Model for Morning Energy

Morning Energy	Coefficient (SE)
	Unconditional Model	Final Model
Fixed effects
Intercept	4.393 (.062)+	4.393 (.058)+
Piecewise 1 – linear rate of change	−0.457 (.113)+	−0.466 (.110)+
Piecewise 1 – quadratic rate of change	0.386 (.054)+	0.389 (.053)+
Piecewise 2 – linear rate of change	−0.492 (.074)+	−0.506 (.072)+
Piecewise 2 – quadratic rate of change	0.166 (.024)+	0.170 (.023)+
Time invariant covariates
Intercept
Lives alone		−0.250 (.113)*
Child care responsibilities		0.355 (.112)*
Karnofsky Performance Status		0.019 (.004)+
Exercise on a regular basis		0.461 (.100)+
Hemoglobin level		0.104 (.032)*
Trait anxiety		−0.022 (.005)+
Sleep disturbance		−0.010 (.003)+
Attentional function		0.291 (.033)+
Piecewise 1 – linear rate of change
Morning energy		−0.134 (.044)*
Piecewise 1 – quadratic rate of change
Morning energy		0.026 (.021)
Piecewise 2 – linear rate of change
Body mass index		−0.031 (.010)*
Sleep disturbance		−0.014 (.003)+
Piecewise 2 – quadratic rate of change
Body mass index		0.010 (.004)*
Sleep disturbance		0.003 (.001)*
Variance components
In intercept	1.618+	1.460+
Goodness-of-fit deviance (parameters estimated)	28656.390 (7)**	28033.617 (21)
Model comparison χ 2 (df)		622.773 (14)+

^*p<.05,

^**p<.001,

⁺p<.0001

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