There was no significant association between cuff pressure
and POST (Table 2). Cuff pressure below 20 cm H2O
was the only factor associated with an increased risk of PH
compared with cuff pressure above 20 cm HjO (59% vs
36% [17/29 vs 24/67]; P = .04), as shown in Table 4. The
OR was 2.5 when the cuff pressure was below 20 cm HjO
compared with above 20 cm HjO (Table 3).