Aim To investigate the distribution of pressure injuries among older adults in China and to identify the associated risk factors. Design Cross‐sectional study. Methods The identified subjects were collected from 2012 wave of a national Chinese Longitudinal Healthy Longevity Survey. Older people were defined as being 65 years of age or older. We used chi‐square test and binary logistic regression to investigate the risk factors of pressure injury development. Results A total of 55 older people were documented as suffering from pressure injuries among 6,961 older Chinese adults, with a prevalence of 0.8%. In the group of disability, the prevalence of pressure injuries from high to low was 3.6% in the highly limited group, 0.4% in the moderately limited group, and 0.3% in the not limited group. The prevalence of pressure injury among older people with stroke, cancer, and dementia were 2%, 4.2%, and 6.6%, respectively. According to the final binary logistic regression analysis, age, disability, incontinence, cancer, and dementia emerged as important risk factors for pressure injury development. Conclusion Pressure injury among Chinese community‐dwelling aged people was shown to be associated with age, disability, incontinence, cancer, and dementia. As the development of pressure injury may distinctly increase the burden on individuals and healthcare systems, the social and related institutions should actively prevent and control the disease. Impact The results of this study will improve the identification of pressure injury among older Chinese people and contribute to the development of effective pressure injury risk management interventions.

This meta‐analysis was conducted to identify the potential benefits and the efficacy of negative‐pressure wound therapy (NPWT) for III/IV pressure injuries (PIs) compared with standard wound care (SWC). Sixteen RCTs with 629 patients were included in our analysis. The methodological quality was assessed by the Cochrane Collaboration Tool. The outcomes included complete ulcer healing rate, wound healing time, pain score, the frequency of dressing change, hospitalization cost, the condition of the exudate, and the wound improvement. The percentage of healing rate was 61.45% for the NPWT group and 36.90% for SWC (95% CI: 1.32‐1.70). There were significant differences in wound healing time (WMD = −16.47 days, 95% [CI (−22.36, − 10.59) days, P ≤ .001]). The pain score and hospitalization cost in NPWT was lower compared with SWC group (WMD = −2.39, 95% CI [−3.47, −1.30], P ≤ .001); (SMD = −2.55, 95% CI [−4.07, −1.03], P < .01). The frequency of dressing change in both NPWT groups was greatly reduced (SMD = −3.61, 95% [CI (−4.57, − 2.66) times, P ≤ .001]). Our meta‐analysis indicated that NPWT was associated with greater improvements in improving PIs and shorting healing time for III/IV PIs. However, this conclusion needs to be confirmed by high‐quality multicenter RCTs.

The aim of this systematic review was to summarize the evidence on the efficacy of zinc supplementation in patients with pressure injuries (PIs). Electronic data bases (Embase, MEDLINE, and Web of Science) were searched from inception to 2019 for randomized controlled trials (RCTs) and non-RCTs addressing the efficacy of zinc supplementation compared with a control nutrition invention on PI outcomes. The primary study outcome was the healing rate of PIs during treatment; the secondary outcomes were the improvement of PI area and pressure ulcer scale for healing (PUSH) score. A total of 7 studies were included in this systematic review and meta-analysis. The intervention group significantly had improved healing vs that of the control group (relative risk, 1.44; 95% CI, 1.01−2.06; P = 0.043, I 2 = 19.3%). There was no obvious asymmetry in the funnel plot and no strong evidence of publication bias. Sensitivity analysis showed that meta-analysis has good stability. Studies showed a greater mean reduction in PI area. All the studies we included had a significant improvement in the PUSH score of PIs. Our systematic review and meta-analysis from clinical research confirmed that zinc therapy can promote wound healing and suggest that medical staff should consider providing patients with zinc during PI treatment.