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. Author manuscript; available in PMC: 2016 Apr 1.
Published in final edited form as: J Am Coll Surg. 2015 Jan 5;220(4):570–578. doi: 10.1016/j.jamcollsurg.2014.12.028

Table 2.

Ventilation Parameters and Pulmonary Complications in High Tidal Volume and Low Tidal Volume Patients

, HTV LTV HTV/LTV 95% CI
Minimum		 95% CI
Maximum		 p Value*
Ventilator days [median], mean ± SD 9 ± 15 [4] 11 ± 16 [5] 0.73† 0.62 0.87 0.0004
Maximum PEEP, mmHg, mean ± SD 7 ± 4 9 ± 4 0.68† 0.64 0.73 <0.0001
Maximum PIP, mmHg, mean ± SD 43 ± 18 38 ± 16 1.07† 1.02 1.13 0.0119
Plateau pressure, mmHg, mean ± SD 37 ± 16 33 ± 14 1.07† 1.02 1.13 0.0106
Pneumonia, n (%) 44 (25) 125 (25) 0.80‡ 0.52 1.24 0.3238
Atelectasis, n (%) 79 (43) 292 (58) 0.44‡ 0.31 0.63 <0.0001
ARDS, n (%) 20 (11) 74 (15) 0.46‡ 0.25 0.84 0.0115
Pneumothorax, n (%) 52 (28) 75 (19) 1.59‡ 1.06 2.41 0.0268
*

p<0.05 accepted as significant.

†

Factor.

‡

Odds ratio.