Evidence map›Paper›PMID 41660719›Full record

SynthesisJournal of advanced nursing2026

Absolute Versus Relative Skin Temperature as Early Warning Indicator for Pressure Injury: A Systematic Review and Meta-Analysis.

Ke Xu, Hua Cao, Lingxiao Ran, Wei Cun, Yijing Li, Xinrui Zhang, Guanhong Dong, Shanshan Liu, Cong Wang, Yan Jiang

Abstract readSystematic ReviewMeta-Analysis
In one paragraph

Synthesis in Journal of advanced nursing, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Ke XuDepartment of Neurosurgery, West China Hospital, West China School of Nursing, Sichuan University, Chengdu, China.ORCID https://orcid.org/0009-0005-7946-6448
Hua CaoDepartment of Neurosurgery, West China Hospital, West China School of Nursing, Sichuan University, Chengdu, China.
Lingxiao RanWest China School of Nursing, Sichuan University, Chengdu, China.
Wei CunEvidence-Based Nursing Center, West China Hospital, Sichuan University, Chengdu, China.
Yijing LiWest China School of Nursing, Sichuan University, Chengdu, China.
Xinrui ZhangWest China School of Nursing, Sichuan University, Chengdu, China.
Guanhong DongWest China School of Nursing, Sichuan University, Chengdu, China.
Shanshan LiuEvidence-Based Nursing Center, West China Hospital, Sichuan University, Chengdu, China.
Cong WangEvidence-Based Nursing Center, West China Hospital, Sichuan University, Chengdu, China.
Yan JiangDepartment of Nursing, West China Hospital, Sichuan University, Chengdu, China.ORCID https://orcid.org/0000-0002-9813-3738

Funding

Natural Science Foundation of Sichuan Province 2024NSFSC1508
6 · The paper itself

Abstract

aimsSkin temperature, including absolute temperature (at bony prominence areas under long-term compression) and relative temperature (the difference between bony prominence and adjacent control area), may serve as early warning indicators for PI. However, the optimal indicator remains unclear. This meta-analysis therefore synthesises evidence on their association with PI risk to identify the best indicator and evaluate its early-warning accuracy.

designSystematic review and meta-analysis.

methodsWe included prospective cohort studies of adult patients investigating longitudinal associations between skin temperature and subsequent PI development. We pooled standardised mean difference (SMD) and odds ratios, complemented by summary receiver operating characteristic (SROC) curve analysis. The overall quality of evidence was evaluated using the GRADE method. DATA SOURCES: We researched PubMed, Embase, CINAHL, Cochrane Library (CENTRAL), Wanfang and CNKI databases from inception to September 25, 2024.

resultsAfter screening 1354 titles and abstracts, ten studies comprising 1742 participants were included in the final synthesis. No significant difference in absolute temperature (combined SMD) was found between the PI and non-PI groups (seven studies included). In addition, decreased relative temperature (< -0.1°C) was associated with a 16-fold increased likelihood of PI (95% CI 6.38-40.19, I

conclusionsRelative temperature is significantly related to the risk of PI, supporting its role as a promising early warning indicator. Future studies should establish a standardised measurement protocol to facilitate its clinical application. IMPLICATIONS FOR THE PROFESSION: Monitoring skin temperature changes holds promise as a non-invasive tool for early warning of PI risk. However, the amount and quality of available evidence limit our confidence in these findings, underscoring the need for further research before a definitive conclusion can be drawn. REPORTING

methodThis study followed PRISMA guidelines. PATIENT OR PUBLIC CONTRIBUTION: No patient or public contribution.

trial registrationPROSPERO CRD42024550099.

Indexed as

Pressure UlcerSkin TemperatureAdultAgedFemaleHumansMaleMiddle AgedProspective Studiesinfrared thermographypressure injuryrelative temperaturerisk assessmentskin temperature

Identifiers

PMID41660719
PMCPMC13576762

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.