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Table 1 Survey practices and sample physicians

From: In-office magnetic resonance imaging (MRI) equipment ownership and MRI volume among medicare patients in orthopedic practices

A: Number of survey practices and physicians by cohort

MRI acquisition year

Number of practices

Practices with >50 % physician ID match

Number of physicians

Comparison

   

 Without MRI thru 2010

442

265

1790

 2011-2013

23

19

220

 Total

465

284

2010

Treatment

   

 2007

30

21

276

 2008

15

12

206

 2009

18

16

283

 Total

63

49

765

  1. Sources: AAOS Survey Data, 2012; CMS NPPES Downloadable File [39]; see text