Evidence map›Paper›PMID 37932714›Full record

ArticleBMC anesthesiology2023

A random forest algorithm-based prediction model for moderate to severe acute postoperative pain after orthopedic surgery under general anesthesia.

Gaoxiang Shi, Geliang Liu, Qichao Gao, Shengxiao Zhang, Qi Wang, Li Wu, Peifeng He, Qi Yu

Abstract read
In one paragraph

Article in BMC anesthesiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
–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

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3 · Its place in the literature

Who cites it

26 citing papers in PubMed.

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  14. Using machine learning methods to investigate the impact of age on the causes of death in patients with early intrahepatic cholangiocarcinoma who underwent surgery.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2025
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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

8 authors.

Gaoxiang ShiSchool of Basic Medical Sciences, Shanxi Medical University, Taiyuan, China.
Geliang LiuInstitute of Medical Data Science, Shanxi Medical University, Taiyuan, China.
Qichao GaoSchool of Basic Medical Sciences, Shanxi Medical University, Taiyuan, China.
Shengxiao ZhangShanxi Key Laboratory of Big Data for Clinical Decision, Shanxi Medical University, Taiyuan, China.
Qi WangSchool of Basic Medical Sciences, Shanxi Medical University, Taiyuan, China.
Li WuSchool of Basic Medical Sciences, Shanxi Medical University, Taiyuan, China.
Peifeng HeInstitute of Medical Data Science, Shanxi Medical University, Taiyuan, China. hepeifeng2006@126.com.
Qi YuInstitute of Medical Data Science, Shanxi Medical University, Taiyuan, China. yuqi@sxmu.edu.cn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPostoperative pain is one of the most common complications after surgery. In order to detect early and intervene in time for moderate to severe postoperative pain, it is necessary to identify risk factors and construct clinical prediction models. This study aimed to identify significant risk factors and establish a better-performing model to predict moderate to severe acute postoperative pain after orthopedic surgery under general anesthesia.

methodsPatients who underwent orthopedic surgery under general anesthesia were divided into patients with moderate to severe pain group (group P) and patients without moderate to severe pain group (group N) based on VAS scores. The features selected by Lasso regression were processed by the random forest and multivariate logistic regression models to predict pain outcomes. The classification performance of the two models was evaluated through the testing set. The area under the curves (AUC), the accuracy of the classifiers, and the classification error rate for both classifiers were calculated, the better-performing model was used to predict moderate to severe acute postoperative pain after orthopedic surgery under general anesthesia.

resultsA total of 327 patients were enrolled in this study (228 in the training set and 99 in the testing set). The incidence of moderate to severe postoperative pain was 41.3%. The random forest model revealed a classification error rate of 25.2% and an AUC of 0.810 in the testing set. The multivariate logistic regression model revealed a classification error rate of 31.3% and an AUC of 0.764 in the testing set. The random forest model was chosen for predicting clinical outcomes in this study. The risk factors with the greatest and second contribution were immobilization and duration of surgery, respectively.

conclusionsThe random forest model can be used to predict moderate to severe acute postoperative pain after orthopedic surgery under general anesthesia, which is of potential clinical application value.

Indexed as

Orthopedic ProceduresRandom ForestHumansPostoperative PainRisk FactorsAnalgesiaLogistic regression modelMachine learningPain predictionRandom forest model

Identifiers

PMID37932714
PMCPMC10626723

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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.