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. 2016 Dec 7;6:55. doi: 10.1186/s13561-016-0137-z

Table 16.

Results for operating room procedure

(1) (2) (3) (4) (5)
Variables Operating room procedure Operating room procedure Operating room procedure Operating room procedure Operating room procedure
Uninsured −0.155*** −0.158*** −0.156*** −0.0686*** −0.0627***
(0.00569) (0.00585) (0.00581) (0.00400) (0.00324)
Income Q2 0.0166*** 0.0180*** 0.00691*** 0.00537***
(0.00399) (0.00361) (0.00214) (0.00194)
Income Q3 0.0208*** 0.0167*** 0.00698*** 0.00497**
(0.00512) (0.00393) (0.00240) (0.00229)
Income Q4 0.0278*** 0.0264*** 0.0119*** 0.00681**
(0.00653) (0.00543) (0.00351) (0.00337)
Black −0.0467*** −0.0552*** −0.0396*** −0.0352***
(0.00541) (0.00474) (0.00287) (0.00299)
Hispanic −0.0189*** −0.0218*** −0.0406*** −0.0353***
(0.00493) (0.00410) (0.00345) (0.00286)
Other −0.0264*** −0.0276*** −0.0322*** −0.0314***
(0.00503) (0.00492) (0.00332) (0.00296)
Female −0.0739*** −0.0726*** −0.132*** −0.133***
(0.00413) (0.00421) (0.00545) (0.00544)
Age 0.00142*** 0.00144*** 0.00170*** 0.00181***
(0.000140) (0.000142) (9.19e-05) (8.62e-05)
For-profit 0.00624 0.0109**
(0.0101) (0.00550)
Urban 0.0608*** 0.0479***
(0.00919) (0.00602)
Teaching 0.0498*** 0.0379***
(0.00738) (0.00471)
State FE No No Yes Yes No
Hospital FE No No No No Yes
Diagnosis vector FE No No No Yes Yes
Observations 2,940,992 2,572,821 2,536,120 2,536,120 2,572,821
R-squared 0.012 0.025 0.031 0.379 0.389

Robust standard errors in parentheses, clustered at the hospital level

***p < 0.01, **p < 0.05, *p < 0.1