The difference between the two groups was statistically significant (P 0.05), but the incidence of pressure ulcer in the observation group was 0, and the length of hospital stay was (8.54 1 ± Compared with the control group, the incidence of pressure ulcer was 5.88%, and the length of hospital stay was (11.61 2.02) days ± 41) days, the difference between the two groups was statistically significant (P < 0<br>
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