Table 5.

Change in demographics after applying the loyalty filter, at each site

		Site A			Site B			Site C
Var.	Cat	All	Loyal	Δ	All	Loyal	Δ	All	Loyal	Δ
Gender	Female	57.0%	62.0%	4.9%	59.6%	65.5%	5.9%	58.6%	61.3%	2.7%
Gender	Male	42.9%	38.0%	−4.9%	40.4%	34.5%	−5.9%	41.4%	38.7%	−2.7%
Age Group	18–34	23.8%	17.0%	−6.8%	23.1%	16.8%	−6.3%	19.9%	14.9%	−5.0%
Age Group	35–44	13.3%	11.8%	−1.5%	15.6%	14.3%	−1.3%	13.9%	13.1%	−0.8%
Age Group	45–54	15.1%	15.8%	0.7%	16.7%	17.6%	0.9%	16.5%	17.3%	0.8%
Age Group	55–64	19.1%	21.9%	2.8%	19.1%	22.4%	3.3%	19.7%	21.6%	1.9%
Age Group	63–84	24.7%	29.2%	4.5%	23.2%	27.0%	3.8%	26.4%	29.6%	3.2%
Age Group	>84	4.0%	4.3%	0.3%	2.4%	1.9%	−0.5%	3.7%	3.5%	−0.2%
Race	American Indian	3.9%	2.4%	−1.5%	0.1%	0.2%	0.1%	0.1%	0.1%	0.0%
Race	Asian	1.2%	1.0%	−0.2%	1.4%	1.8%	0.4%	4.2%	4.3%	0.1%
Race	Black	7.6%	7.1%	−0.5%	7.9%	8.6%	0.7%	5.9%	5.9%	0.0%
Race	No information	0.3%	0.2%	−0.1%	3.1%	1.5%	−1.6%	9.4%	3.7%	−5.7%
Race	Other	3.6%	2.1%	−1.5%	0.0%	0.1%	0.1%	6.5%	6.5%	0.0%
Race	White	85.8%	88.7%	2.9%	87.3%	87.8%	0.5%	74.0%	79.4%	5.4%
Charlson	Index	1.7	2.12	0.42	1.96	2.46	0.5	1.72	2.14	0.41
Charlson	10 year survival probability	83.8%	79.1%	−4.7%	80.5%	75.1%	−5.4%	84.0%	78.9%	−5.2%

Note: The delta column is the shift after applying the filter (eg, Loyal-All).