Table 2.

Multivariable model examining the relationship between alignment to the Accountable Care Organization and mean quarterly spending for long-term dialysis beneficiaries

Parametera	Estimate, $	95% Confidence Interval, $
ACO alignment
Nonaligned	Referent
ACO aligned	−143	−282 to −5
Receives primary care services from PCP
No primary care service from PCP	Referent
Has primary care service from PCP	3044	2964 to 3125
Year
2009	Referent
2010	−305	−432 to −177
2011	−1824	−1954 to −1693
2012	−1351	−1480 to −1222
2013	−1770	−1899 to −1641
2014	−2212	−2345 to −2079
2015	−1516	−1659 to −1372
Quarter
1	Referent
2	1274	1209 to 1338
3	1908	1837 to 1978
4	2104	2031 to 2178
Sex
Women	Referent
Men	−214	−307 to −120
Race
White	Referent
Black	456	344 to 569
Other/unknown	−1219	−1346 to −1091
Age, yr
18–65	Referent
66–69	285	150 to 420
70–74	547	409 to 684
75–79	536	389 to 684
80–84	402	243 to 561
85+	257	69 to 445
Dual eligibility
Not dual eligible	Referent
Dual eligible	1864	1765 to 1964

ACO, Accountable Care Organization; PCP, primary care physician.

^aEstimates for individual hierarchical condition categories not shown.