Document Classification

Section Type: RESULTS

Text: There was no significant difference in the 28-day mortality rate between two groups (34. 0 % vs. 37. 0 %, P > 0. 05), but patients of low-stretch group had lower incidence of hypercapnia than low-tidal-volume group (10. 6 % vs. 40. 7 %, P < 0. 05), and also the duration of using sedatives [(4. 5 + / -1. 2) days vs. (8. 7 + / -2. 3) days] and neuromuscular blockade agents [(8. 4 + / -2. 1) days vs. (10. 7 + / -1. 2) days], and the length of ventilation and ICU stay [(10. 2 + / -2. 2) days vs. (13. 7 + / -3. 1) days, all P < 0. 05] were less.