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. Author manuscript; available in PMC: 2017 Aug 1.
Published in final edited form as: Ann Surg. 2016 Aug;264(2):362–369. doi: 10.1097/SLA.0000000000001499

TABLE 2.

Incidences of Outcomes for Every PEEP Exposure Group in the Total Cohort Including Major Abdominal Surgeries and Craniotomies

Total Cohort
(n=10,978)
 Major Abdominal Surgery
(n=5915)
 Craniotomy
(n=5063)
Number of
Patients		 Outcome
Events, n (%)		 Number of
Patients		 Outcome
Events, n (%)		 Number of
Patients		 Outcome Events,
n (%)
Exposure
 PEEP <5cmH2O 3960 331 (8.4) 1997 247 (12.4) 1963 84 (4.3)
 PEEP=5 cmH2O 5567 425 (7.6) 3140 328 (10.4) 2427 97 (4.0)
 PEEP >5cmH2O 1451 120 (8.3) 778 85 (10.9) 673 35 (5.2)