Table 4.

Bladder tumor

Statistic	N	Mean	SD	Min	Max
ms	199	0.73	0.15	0.33	0.98
Quality	199	0.00	1.00	−2.85	1.42
frac_female	199	0.22	0.05	0.10	0.45
frac_65	199	0.72	0.06	0.52	0.86
Com	199	2.68	0.46	1.70	4.32
HHI_ins	199	0.38	0.11	0.19	0.71
Lowvolume	199	0.23	0.42	0	1
Acad	199	0.10	0.29	0	1

This table shows summary statistics for each diagnosis group at the hospital-year level (2008–2010). We report the average, standard deviation, minimum and maximum of the variables that we included in our regression analysis. We also show the total number of observations for each diagnosis group