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Abstract：
Meta-analysis research was implemented to appraise the effect of various repositioning regimens (RRs) on pressure wound ulcer (PWU) occurrence in at-risk adult persons without existing PWUs. Inclusive literature research till April 2023 was done and 1197 interconnected researches were revised. The 15 picked researches, enclosed 8510 at-risk adult persons without existing PWUs persons were in the utilised researchers\' starting point, 1002 of them were utilising repositioning, 1069 were control, 3443 were utilising 2-<4 h repositioning and 2994 were utilising 4-6 h repositioning. Odds ratio (OR) and 95% confidence intervals (CIs) were utilised to appraise the consequence of various RRs on PWU occurrence in at-risk adult persons without existing PWUs by the dichotomous approach and a fixed or random model. Repositioning had significantly lower PWU (OR, 0.49; 95% CI, 0.32-0.73, p < 0.001) compared to control in at-risk adult persons without existing PWUs persons. 2-<4 h repositioning had significantly lower PWU (OR, 0.62; 95% CI, 0.42-0.90, p = 0.01) compared to 4-6 h repositioning in at-risk adult persons without existing PWUs persons. Repositioning had significantly lower PWU compared to control in at-risk adult persons without existing PWU persons. 2-<4 h repositioning had significantly lower PWU compared to 4-6 h repositioning in at-risk adult persons without existing PWUs persons. However, caution needs to be taken when interacting with its values since there was a low sample size of some of the chosen research found for the comparisons in the meta-analysis.
摘要：
进行了荟萃分析研究，以评估各种重新定位方案（RR）对没有现有PWU的高危成年人的压力伤口溃疡（PWU）发生的影响。直到2023年4月的包容性文献研究已经完成，并修订了1197项相互关联的研究。精选的15项研究，封闭的8510名没有现有PWU的有风险的成年人处于利用研究人员的起点，其中1002人正在利用重新定位，1069被控制，3443使用2-<4小时的重新定位，2994使用4-6小时的重新定位。通过二分方法和固定或随机模型，利用赔率比（OR）和95％置信区间（CI）评估了各种RR对没有现有PWU的高危成年人PWU发生的影响。重新定位显著降低了PWU(或，0.49；95％CI，0.32-0.73，p<0.001）与没有现有PWU人员的高危成年人的对照相比。2-<4小时重新定位的PWU显著降低(OR，0.62;95％CI，0.42-0.90，p=0.01），与没有现有PWU人员的高危成年人的4-6小时重新定位相比。与没有现有PWU人员的高危成年人相比，重新定位的PWU明显较低。与没有现有PWU的高危成年人的4-6小时重新定位相比，2-<4小时重新定位的PWU显着降低。然而,与其值相互作用时需要谨慎，因为在荟萃分析中发现的一些选定研究的样本量较低。
