. Author manuscript; available in PMC: 2015 Aug 1.

Published in final edited form as: J Appl Gerontol. 2012 Aug 7;33(5):624–646. doi: 10.1177/0733464812454008

Table 2.

Establishing the NHA-Burden Prognostic Tool: Parsimonious Logistic Regression Model Predicting Clinical Burden up to Six Months Following Nursing Home Admission (N = 836; Development Sample)

	OR	95% CI Lower	95% CI Upper	P-value
Duration of Care
Over 36 months	1.41	1.01	1.97	.04
Pre-Placement Unmet Needs
Any unmet need indicated	1.48	1.06	2.07	.02
Pre-Placement Depression
0–2 on GDS^a (reference)
2–4 on GDS	2.59	1.51	4.45	.001
4–7 on GDS	2.83	1.65	4.85	< .001
Over 7 on GDS	2.93	1.64	5.25	< .001
Pre-Placement Burden
0–9 on ZBI^b (reference)
9–14 on ZBI	2.10	1.19	3.71	.01
14–19 on ZBI	2.41	1.36	4.26	< .001
Over 19 on ZBI	4.93	2.65	9.18	< .001

NOTE: OR = Odds Ratio; CI = Confidence Interval; GDS = Geriatric Depression Scale; ZBI = Zarit Burden Inventory