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. Author manuscript; available in PMC: 2020 Oct 6.
Published in final edited form as: BJU Int. 2017 Mar 10;120(2):239–245. doi: 10.1111/bju.13804

Table 1.

Average Annual Hospital Volume by Average Annual Surgeon Volume 2010–2013 (N=18,136)1

Average Annual
Hospital Volume		 Average Annual Surgeon Volume
<2 2–4 5–9 10–19 >=20 Total
< 2 1,306 44 10 2 1 1,363
2–4 2,047 840 47 20 0 2,954
5–9 1,398 1,442 602 109 0 3,551
10–19 683 727 1,071 320 0 2,801
20–29 248 333 341 683 175 1,780
>=30 235 393 691 2,046 2,322 5,687
Total 5,917 3,779 2,762 3,180 2,498 18,136
1.

Excludes 1,210 patients with missing surgical volume.