Table 1. Predictors of active attempts to keep low tidal volume.

Predictors	Actively attempts low tidal volume (n=35)	Does not actively attempt low tidal volume (n=22)	P
Mean # of years in practice (SD)	14.9 (10.1)	15.4 (10.5)	0.87
Mean % of caseload spent doing OLV in preceding year (SD)	8.7 (6.0)	8.3 (6.3)	0.85
Cardiothoracic Anesthesia Fellowship	7 (20.0%)	2 (9.1%)	0.46
Ever worked as ICU physician	14 (40.0%)	4 (18.2%)	0.14
Perceived clinical barriers to low tidal volume implementation	19 (54.3%)	18 (81.8%)	0.047*
Perceived institutional barriers to low tidal volume implementation	6 (17.1%)	13 (59.1%)	0.002*
Perceived intraoperative applicability of ICU LPV evidence	23 (65.7%)	9 (40.9%)	0.25

On univariable analyses, perceived clinical (P=0.047) and institutional (P=0.002) barriers were the only significant predictors such that they predicted reduced attempts to minimize tidal volume. *, significant using 2-sided Fisher’s Exact test with α=0.05. SD, standard deviation; OLV, one-lung ventilation; ICU, intensive care unit; LPV, lung protective ventilation.