After Braden scale intervention: Compare the average Braden score between Braden-0 before the intervention and the days after the intervention: Braden-1: 13.39 ± 2.1 (P<0.05), Braden-2: 14.51 ± 2.1 (P>0.05), Braden-3: 16.73 ± 2.2 (P<0.05), Braden - discharged: 17.9 ± 2.3.