Document Classification

Section Type: RESULTS

Text: The differences between heparin group and routine group were not statistically significant in the 7-day mortality (7. 7 % vs 12. 9 %, P = 0. 08), the days in ICU (Z = 0. 281, P = 0. 779, rank sum test), the length of stay (Z = 0. 562, P = 0. 574, rank sum test), the oxygenation index (P = 0. 82), the days of mechanical ventilation [(126. 07 + / - 166. 21) h vs (179. 27 + / - 221. 7) h, P = 0. 28] and the rate of ARDS (44. 0 % vs 46. 2 %, P = 0. 88).