. Author manuscript; available in PMC: 2021 Aug 19.

Published in final edited form as: J Am Geriatr Soc. 2021 Apr 9;69(8):2152–2162. doi: 10.1111/jgs.17172

Table 2.

Rate and trends in quarterly antipsychotic use among long-stay residents, by hospice enrollment status and dementia diagnosis^a,b

	Residents Overall N=3,741,379				Residents with Dementia N=2,388,991
	Long-stay residents not in hospice N=3,610,536^c		Hospice enrollees N=821,610^c		Long-stay residents not in hospice N=2,277,341		Hospice enrollees N=579,599
	Estimate	95% CI	Estimate	95% CI	Estimate	95% CI	Estimate	95% CI
Period 1 (2011–2012_Q1)
% Use at start of pre-Partnership Period	22.99^***	22.95, 23.03	26.94^***	26.64, 27.24	30.12^***	30.08, 30.17	31.63^***	31.34, 31.92
Slope during pre-Partnership Period	−0.004	−0.02, 0.01	0.10	−0.01, 0.21	−0.04^***	−0.06, −0.02	0.11^*	0.004, 0.21
Period 2 (2012_Q2–2014)
Level change	−0.75^**	−1.21, −0.30	−0.93^**	−1.52, −0.35	−0.98^**	−1.56, −0.40	−1.12^**	−1.76, −0.47
% Use at start of Period 2	22.22^***	21.79, 22.64	26.49^***	26.03, 26.95	28.95^***	28.40, 29.51	31.06^***	30.52, 31.59
Slope change pre- and post-Partnership	−0.46^***	−0.53, −0.39	−0.60^***	−0.73, −0.47	−0.57^***	−0.67, −0.48	−0.70^***	−0.83, −0.57
Period 3 (2015_Q1–2017)
Level change	0.08	−0.37, 0.54	−0.10	−0.69, 0.48	0.14	−0.46, 0.75	−0.13	−0.84, 0.57
% Use at start of Period 3	17.21^***	16.85, 17.58	20.86^***	20.32, 21.41	22.37^***	21.83, 22.92	24.45^***	23.77, 25.13
Slope change after Five Star Quality Rating	0.18^**	0.07, 0.30	0.28^***	0.16, 0.39	0.26^**	0.10, 0.41	0.33^***	0.20, 0.46

CL, confidence interval.

<0.05;

^**

<0.01;

^***

<0.001.

Percent use reported here is predicted percent use from the interrupted time series model. Percent use after an interruption (e.g., start of Period 2) accounts for the interruption (i.e., level change included in estimate). Observed percent use can be found in Supplementary Tables S1 and S2.

The sample size reported here refers to the number of unique long-stay residents from 2011–2017 (e.g., there were 821,610 unique long-stay residents enrolled in hospice for at least one quarter from 2011 to 2017)

Because a long-stay resident can transition from not being enrolled in hospice to being enrolled in hospice, the number of long-stay residents not in hospice and in hospice do not add up to the total number of unique long-stay residents.