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TRUVACE RECORD VERSION
record: TRV-2026-0641
version: 1
kind: certified
reason: Certified into the record
timestamp: 2026-08-04T06:08:51.771741Z
status: published
lens: g_space
sector: health
headline: Comparison of Machine Learning and Logistic Regression in Predicting Mortality from Acute Poisoning in Young Adults: A Multicenter Study Identifying Herbicide Exposure as the Predominant Risk Determinant
dek: Objective Compare the effectiveness of machine learning algorithms and traditional logistic regression in predicting the mortality risk of young patients with acute poisoning, and establish a risk stratification nomogram. Methods This multicenter retrospective study derived a derivation cohort of 406 young adults with acute poisoning from Wenzhou and an external validation cohort of 150 patients from Lishui.LASSO regression was used to screen predictive factors from 43 candidate variables. Compare the predictive…
gain_title: Logistic regression achieved comparable discrimination to 14 machine learning algorithms for 28-day mortality prediction in young adults with acute poisoning and enabled a clinically usable nomogram for early risk stratification.
problem_title: (none)
trace_subject: (none)
gain_reading: Logistic regression achieved comparable discrimination to 14 machine learning algorithms for 28-day mortality prediction in young adults with acute poisoning and enabled a clinically usable nomogram for early risk stratification.
gain_evidence: The discriminative power of the final logistic regression is comparable to that of the optimal machine learning model (internal validation AUC 0.885, external validation AUC 0.971), and it is well calibrated (Brier score 0.058-0.082, Hosmer Lemeshow test P > 0.05) | A nomogram for predicting the 28-day mortality risk of young patients was constructed based on Logistic regression | Logistic regression performs similarly to complex machine learning algorithms in predicting the risk of death from acute poisoning in young adults, with better interpretability and clinical practicality
problem_reading: (none)
problem_evidence: (none)
quick_read: A multicenter study of 556 young adults with acute poisoning compared 14 machine learning algorithms to traditional logistic regression for predicting 28-day mortality. Using six LASSO-selected factors including herbicide poisoning, white blood cell count and shock, logistic regression matched the best machine learning model on discrimination and calibration, leading authors to build a nomogram for early risk stratification.

The finding matters because it suggests interpretable regression can provide comparable prognostic performance to complex models in this emergency toxicology population, potentially aiding triage and counseling. What remains uncertain from the text is prospective performance, generalizability beyond the two Chinese centers, and whether use of the nomogram changes clinical decisions or outcomes.
limitation: 
tag: Evidence-backed gain
key_points: Multicenter retrospective study with derivation cohort of 406 young adults from Wenzhou and external validation cohort of 150 patients from Lishui. | LASSO regression screened 43 candidate variables down to six independent predictors: white blood cell count, creatinine, herbicide poisoning, invasive mechanical ventilation, liver dysfunction, and shock. | 14 machine learning algorithms including RandomForest, XGBoost, CatBoost, LightGBM, SVM compared to logistic regression on 7:3 random split with AUC, sensitivity, specificity and calibration. | Herbicide exposure identified as predominant risk determinant among young adults with acute poisoning.
rundown: Researchers used LASSO regression to select six predictors from 43 candidates and compared logistic regression to RandomForest, XGBoost, CatBoost, LightGBM, SVM and nine other algorithms on a 7:3 training split, evaluating AUC, sensitivity, specificity and calibration with internal and external verification.

The final logistic model showed internal AUC 0.885 and external AUC 0.971 with Brier scores 0.058-0.082 and Hosmer Lemeshow P > 0.05, supporting construction of a nomogram described as a simple and effective early risk stratification tool for clinical decision-making assistance.
sources:
- peer_reviewed | Toxicology Mechanisms and Methods | https://doi.org/10.1080/15376516.2026.2713207 | 2026-08-03
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