Table 4.

Summary of Hierarchical Regression for Variables Predicting Changes in SIB Total by Cognitive Fluctuation Severity.^a,b

	B	SE	β
Step 1
Constant	81.79	61.56
Education	−1.59	0.46	−0.05
Age at testing	0.07	0.68	0.01
Month in LTC	0.03	0.12	0.04
Step 2
Constant	107.44	60.06
Education	0.14	0.46	0.04
Age at testing	−0.09	0.66	−0.02
Months in LTC	0.03	0.12	0.04
DCFS total	−1.48	0.64	−0.33c

Abbreviations: DCFS, Dementia Cognitive Fluctuation Scale; LTC, long-term care; SIB, Severe Impairment Battery. ¹⁸

^aN = 55.

^b R ² = .00 for step 1 (P = .984), ΔR ² = .10 for step 2 (P = .024). Model: R ² = .10, adjusted R ² = .03.

^c P < .05.