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Table 7 Overtime of all surgical units during 3 years

From: Operating room data management: improving efficiency and safety in a surgical block

Overtime 2009 2010 2011
Number of events 336 371 324
Minutes 78 ± 57* 77 ± 54* 78 ± 54*
Percentage (over surgical procedures) 28 23 21
  1. *Data are means ± SD (range).