1.Construction and validation of a clinical predictive model for early neurological deterioration in patients with mild acute ischemic stroke
Weilai LI ; Weihong WU ; Ying JI
Journal of Apoplexy and Nervous Diseases 2025;42(4):321-327
Objective To investigate the risk factors for early neurological deterioration in mild acute ischemic stroke,to construct a clinical predictive model,and to perform internal validation of this model. Methods A retrospective analysis was performed for 739 patients with mild acute ischemic stroke who were admitted to Department of Neurology,Kuntong Hospital of Zunhua,from October 2020 to December 2023,and they were randomly divided into a training set with 534 patients (72.3%) and a validation set with 205 patients (27.7%) at a ratio of 7∶3. Univariate and multivariate logistic regression analyses were performed for the training set to determine the risk factors for early neurological deterioration in mild acute ischemic stroke. A clinical predictive model was constructed,and internal validation was performed in terms of discriminatory ability,calibration,and clinical decision making. A nomogram was plotted. Results The multivariate logistic regression analysis showed that female sex (OR=1.87,95% CI 1.14~3.09,P=0.014),time window ≤6 hours (OR=3.10,95%CI 1.56~6.19,P=0.001),a baseline NIHSS score of 2 points (OR=3.72,95%CI 1.30~10.61,P=0.014),a baseline NIHSS score of 3 points (OR=4.24,95%CI 1.45~12.35,P=0.008),a TOAST classification of large artery atherosclerosis (OR=3.88,95%CI 2.20~6.83,P<0.001),and the responsible arteries of the basilar artery,the middle cerebral artery,and the internal carotid artery (OR=8.39,95%CI 2.28~30.85,P=0.001; OR=6.22,95%CI 1.78~21.71,P=0.004; OR=5.38,95%CI 1.15~25.13,P=0.032) were independent risk factors for early neurological deterioration in mild acute ischemic stroke. The clinical predictive model constructed showed a moderate discriminatory ability (AUC>0.7),good calibration (P>0.05) in the Hosmer-Lemeshow goodness-of-fit test),and good clinical benefits in both the training set and the validation set. Conclusion This clinical predictive model can effectively predict the onset of early neurological deterioration in mild acute ischemic stroke and guide clinicians to make decisions,and therefore,it holds promise for clinical application.
Nomograms
2.Mitochondrial-associated programmed-cell-death patterns for predicting the prognosis of non-small-cell lung cancer.
Xueyan SHI ; Sichong HAN ; Guizhen WANG ; Guangbiao ZHOU
Frontiers of Medicine 2025;19(1):101-120
Mitochondria are the convergence point of multiple pathways that trigger programmed cell death (PCD). Mitochondrial-associated PCD (mtPCD) is involved in the pathogenesis of several diseases. However, the role of mtPCD in the prognostic prediction of cancers including non-small-cell lung cancer (NSCLC) remains to be investigated. Here, 12 mtPCD patterns were analyzed in transcriptomics, genomics, and clinical data collected from 4 datasets containing 977 patients. A risk-score assessment system containing 18 genes was established. We found that NSCLC patients with a high-risk score had a poorer prognosis. A nomogram was constructed by incorporating the risk score with clinical features. The risk score was further associated with clinicopathological information, tumor-mutation frequency, and immunotherapy responses. NSCLC patients with a high risk score had more Treg cells infiltration. However, these patients had higher tumor-mutation burden scores and may be more sensitive to immunotherapy. Moreover, receptor-interacting serine/threonine protein kinase 2 (RIPK2) was selected from mtPCD gene model for validation. We found that RIPK2 exhibited oncogenic function, and its expression level was inversely associated with the overall survival of NSCLC. Taken together, our results indicated the accuracy and practicability of the mtPCD gene model and RIPK2 in predicting the prognosis of NSCLC.
Humans
;
Carcinoma, Non-Small-Cell Lung/pathology*
;
Lung Neoplasms/pathology*
;
Prognosis
;
Male
;
Female
;
Nomograms
;
Middle Aged
;
Mitochondria/metabolism*
;
Apoptosis/genetics*
;
Mutation
;
Biomarkers, Tumor/genetics*
;
Aged
3.Particulate matter exposure and end-stage renal disease risk in IgA nephropathy.
Yilin CHEN ; Huan ZHOU ; Siqing WANG ; Lingqiu DONG ; Yi TANG ; Wei QIN
Frontiers of Medicine 2025;19(5):855-864
Long-term exposure to particulate matter has been increasingly implicated in the progression of chronic kidney disease (CKD). However, its impact on IgA nephropathy (IgAN), a leading cause of end-stage renal disease (ESRD), remains unclear. A total of 1768 IgAN patients, confirmed by renal biopsy were included in this cohort study. Long-term exposure to PM2.5 and PM10 was assessed using high-resolution satellite-based data from the China High Air Pollutants (CHAP) dataset. Cox proportional hazards models were used to estimate the associations between PM2.5 or PM10 and ESRD risk, adjusting for demographic, clinical, and biochemical covariates. Over a median follow-up of 3.63 years, 209 participants progressed to ESRD. Higher exposure to both PM2.5 and PM10 was significantly associated with an increased risk, with hazard ratios of 1.62 and 1.36 per 10 µg/m3 increase, respectively. A nonlinear dose-response relationship was observed, with risk increasing markedly beyond threshold levels. Trajectory modeling of prebaseline exposure identified a subgroup with persistently high and fluctuating particulate matter exposure that showed the highest risk. This study provides strong evidence that prolonged exposure to ambient particulate matter contributes to renal disease progression in individuals with IgAN.
Humans
;
Glomerulonephritis, IGA/pathology*
;
Particulate Matter/adverse effects*
;
Male
;
Female
;
Kidney Failure, Chronic/epidemiology*
;
Adult
;
China/epidemiology*
;
Disease Progression
;
Environmental Exposure/adverse effects*
;
Middle Aged
;
Proportional Hazards Models
;
Risk Factors
;
Air Pollutants/adverse effects*
;
Cohort Studies
4.Clinical characteristics of elderly patients with sepsis and development and evaluation of death risk assessment scale.
Fubo DONG ; Liwen LUO ; Dejiang HONG ; Yi YAO ; Kai PENG ; Wenjin LI ; Guangju ZHAO
Chinese Critical Care Medicine 2025;37(1):17-22
OBJECTIVE:
To analyze the clinical characteristics of elderly patients with sepsis, identify the key factors affecting their clinical outcomes, construct a death risk assessment scale for elderly patients with sepsis, and evaluate its predictive value.
METHODS:
A retrospective case-control study was conducted. The clinical data of sepsis patients admitted to intensive care unit (ICU) of the First Affiliated Hospital of Wenzhou Medical University from September 2021 to September 2023 were collected, including basic information, clinical characteristics, and clinical outcomes. The patients were divided into non-elderly group (age ≥ 65 years old) and elderly group (age < 65 years old) based on age. Additionally, the elderly patients were divided into survival group and death group based on their 30-day survival status. The clinical characteristics of elderly patients with sepsis were analyzed. Univariate and multivariate Logistic regression analyses were used to screen the independent risk factors for 30-day death in elderly patients with sepsis, and the regression equation was constructed. The regression equation was simplified, and the death risk assessment scale was established. The predictive value of different scores for the prognosis of elderly patients with sepsis was compared.
RESULTS:
(1) A total of 833 patients with sepsis were finally enrolled, including 485 in the elderly group and 348 in the non-elderly group. Compared with the non-elderly group, the elderly group showed significantly lower counts of lymphocyte, T cell, CD8+ T cell, and the ratio of T cells and CD8+ T cells [lymphocyte count (×109/L): 0.71 (0.43, 1.06) vs. 0.83 (0.53, 1.26), T cell count (cells/μL): 394.0 (216.0, 648.0) vs. 490.5 (270.5, 793.0), CD8+ T cell count (cells/μL): 126.0 (62.0, 223.5) vs. 180.0 (101.0, 312.0), T cell ratio: 0.60 (0.48, 0.70) vs. 0.64 (0.51, 0.75), CD8+ T cell ratio: 0.19 (0.13, 0.28) vs. 0.24 (0.16, 0.34), all P < 0.01], higher natural killer cell (NK cell) count, acute physiology and chronic health evaluation II (APACHE II) score, ratio of invasive mechanical ventilation (IMV) during hospitalization, and 30-day mortality [NK cell count (cells/μL): 112.0 (61.0, 187.5) vs. 95.0 (53.0, 151.0), APACHE II score: 16.00 (12.00, 21.00) vs. 13.00 (8.00, 17.00), IMV ratio: 40.6% (197/485) vs. 31.9% (111/348), 30-day mortality: 28.9% (140/485) vs. 19.5% (68/348), all P < 0.05], and longer length of ICU stay [days: 5.5 (3.0, 10.0) vs. 5.0 (3.0, 8.0), P < 0.05]. There were no statistically significant differences in the levels of inflammatory markers such as C-reactive protein (CRP), procalcitonin (PCT), tumor necrosis factor-α (TNF-α), interferon-γ (IFN-γ), and interleukins (IL-2, IL-4, IL-6, IL-10) between the two groups. (2) In 485 elderly patients with sepsis, 345 survived in 30 days, and 140 died with the 30-day mortality of 28.9%. Compared with the survival group, the patients in the death group were older, and had lower body mass index (BMI), white blood cell count (WBC), PCT, platelet count (PLT) and higher IL-6, IL-10, N-terminal pro-brain natriuretic peptide (NT-proBNP), total bilirubin (TBil), blood lactic acid (Lac), and ratio of in-hospital IMV and continuous renal replacement therapy (CRRT). Multivariate Logistic regression analysis indicated that BMI [odds ratio (OR) = 0.783, 95% confidence interval (95%CI) was 0.678-0.905, P = 0.001], IL-6 (OR = 1.073, 95%CI was 1.004-1.146, P = 0.036), TBil (OR = 1.009, 95%CI was 1.000-1.018, P = 0.045), Lac (OR = 1.211, 95%CI was 1.072-1.367, P = 0.002), and IMV during hospitalization (OR = 6.181, 95%CI was 2.214-17.256, P = 0.001) were independent risk factors for 30-day death in elderly patients with sepsis, and the regression equation was constructed (Logit P = 1.012-0.244×BMI+0.070×IL-6+0.009×TBil+0.190×Lac+1.822×IMV). The regression equation was simplified to construct a death risk assessment scale, namely BITLI score. Receiver operator characteristic curve (ROC curve) analysis showed that the area under the ROC curve (AUC) of BITLI score for predicting death risk was 0.852 (95%CI was 0.769-0.935), and it was higher than APACHE II score (AUC = 0.714, 95%CI was 0.623-0.805) and sequential organ failure assessment (SOFA) score (AUC = 0.685, 95%CI was 0.578-0.793). The determined cut-off value of BITLI score was 1.50, while achieving a sensitivity of 83.3% and specificity of 74.0%.
CONCLUSIONS
Elderly patients with sepsis often have reduced lymphocyte counts, severe conditions, and poor prognosis. BMI, IL-6, TBil, Lac, and IMV during hospitalization were independent risk factors for 30-day death in elderly patients with sepsis. The BITLI score constructed based above risk factors is more precise and reliable than traditional APACHE II and SOFA scores in predicting the outcomes of elderly patients with sepsis.
Humans
;
Sepsis/mortality*
;
Aged
;
Retrospective Studies
;
Risk Assessment
;
Case-Control Studies
;
Prognosis
;
Male
;
Female
;
Intensive Care Units
;
Risk Factors
;
Aged, 80 and over
;
Logistic Models
;
Middle Aged
5.Multivariable risk prediction model for early onset neonatal sepsis among preterm infants
Health Sciences Journal 2025;14(1):43-52
INTRODUCTION
Neonatal sepsis is a significant cause of morbidity and mortality, particularly among preterm infants, and remains a pressing global health concern. Early-onset neonatal sepsis is particularly challenging to diagnose due to its nonspecific clinical presentation, necessitating effective and timely diagnostic tools to reduce adverse outcomes. Traditional methods, such as microbial cultures, are slow and often unavailable in resource-limited settings. This study aimed to develop a robust multivariable risk prediction model tailored to improve early detection of Early Onset Sepsis (EOS) among preterm infants in the Philippines.
METHODSWe conducted a retrospective analysis at a tertiary hospital in the Philippines using data from 1,354 preterm infants admitted between January 2019 and June 2024. Logistic regression models were employed, and predictors were selected through reverse stepwise elimination. Two scoring methods were developed: one based on beta coefficients divided by standard errors and another standardized to a total score of 100. The models were validated using Receiver Operator Characteristic curve analysis.
RESULTSVersion 1 of the scoring model demonstrated an Area Under the Curve (AUC) of 0.991, with a sensitivity of 90.91% and a specificity of 98.10%. Version 2 achieved an AUC of 0.999, with a sensitivity of 96.4% and a specificity of 92.44%.
CONCLUSIONSThe developed models provide a reliable, region specific tool for early detection of neonatal sepsis. Further validation across diverse populations and the integration of emerging diagnostic technologies, such as biomarkers and artificial intelligence, are warranted to enhance their applicability and accuracy.
Human ; Bacteria ; Infant: 1-23 Months ; Neonatal Sepsis ; Logistic Models ; Infant, Premature ; Philippines
6.Association between visual impairment and body mass index in students from rural China.
Hongyu GUAN ; Zhijie WANG ; Yuxiu DING ; Yunyun ZHANG ; Kang DU ; Yaojiang SHI
Singapore medical journal 2025;66(7):362-367
INTRODUCTION:
Visual impairment and obesity remain the major public health issues among school-age students in rural areas of China. Obesity is an underlying risk of vision problems. This study aimed to assess the association between visual impairment and body mass index (BMI) among school-age students in rural northwest China.
METHODS:
This study included 39,385 students from the 4 th to 9 th grade in rural northwest China. From 2018 to 2020, students underwent an assessment of visual acuity (VA) and completed a questionnaire on family demographics, and height and weight measurements. Multiple logistic regression analyses were used to analyse the data.
RESULTS:
The association between visual impairment and BMI groups was significant in the study population ( P = 0.002) and in different groups (at the different educational, provincial and national levels) ( P < 0.001, separately). Multiple logistic regression analyses revealed a positive relationship between visual impairment and obesity in the study population, including those attending primary school, Han students and the residents of Ningxia autonomous region.
CONCLUSION
The association between visual impairment and obesity was significant among school-age students in rural northwest China. There should be implementation of policies to address the problem about visual impairment and obesity among school-age students in rural areas.
Humans
;
China/epidemiology*
;
Body Mass Index
;
Male
;
Female
;
Rural Population
;
Vision Disorders/complications*
;
Child
;
Adolescent
;
Students
;
Surveys and Questionnaires
;
Logistic Models
;
Obesity/complications*
;
Visual Acuity
;
Cross-Sectional Studies
7.Obstructive sleep apnoea and nocturnal atrial fibrillation in patients with ischaemic heart disease.
Silin KUANG ; Yiong Huak CHAN ; Serene WONG ; See Meng KHOO
Singapore medical journal 2025;66(4):190-194
INTRODUCTION:
Arrhythmias, especially atrial fibrillation (AF) and ventricular arrhythmias, are independent risk factors of mortality in patients with ischaemic heart disease (IHD). While there is a growing body of evidence that suggests an association between obstructive sleep apnoea (OSA) and cardiac arrhythmias, evidence on this relationship in patients with IHD has been scant and inconsistent. We hypothesised that in patients with IHD, severe OSA is associated with an increased risk of nocturnal arrhythmias.
METHODS:
We studied 103 consecutive patients with IHD who underwent an overnight polysomnography. Exposed subjects were defined as patients who had an apnoea-hypopnoea index (AHI) ≥30/h (severe OSA), and nonexposed subjects were defined as patients who had an AHI <30/h (nonsevere OSA). All electrocardiograms (ECGs) were interpreted by the Somte ECG analysis software and confirmed by a physician blinded to the presence or absence of exposure. Arrhythmias were categorised as supraventricular and ventricular. Arrhythmia subtypes (ventricular, atrial and conduction delay) were analysed as dichotomous outcomes using multiple logistic regression models.
RESULTS:
Atrial fibrillation and AF/flutter (odds ratio 13.5, 95% confidence interval 1.66-109.83; P = 0.003) were found to be more common in the severe OSA group than in the nonsevere OSA group. This association remained significant after adjustment for potential confounders. There was no significant difference in the prevalence of ventricular and conduction delay arrhythmias between the two groups.
CONCLUSION
In patients with IHD, there was a significant association between severe OSA and nocturnal AF/flutter. This underscores the need to evaluate for OSA in patients with IHD, as it may have important implications on clinical outcomes.
Humans
;
Sleep Apnea, Obstructive/diagnosis*
;
Atrial Fibrillation/diagnosis*
;
Male
;
Female
;
Middle Aged
;
Polysomnography
;
Electrocardiography
;
Myocardial Ischemia/complications*
;
Aged
;
Risk Factors
;
Logistic Models
8.Analysis of knowledge and related factors regarding hepatitis C prevention and treatment among female sex workers and men who have sex with men in the Xizang Autonomous Region.
Dorji WANGMO ; X Y ZHAO ; J SUN ; J PENG ; S R LI ; N PANG ; X D WU ; H Q GONG ; Y LI ; Y YANG
Chinese Journal of Epidemiology 2025;46(8):1417-1421
Objective: To investigate the knowledge of hepatitis C prevention and treatment and related factors among two groups of female sex workers (FSW) and men who have sex with men (MSM) in the Xizang Autonomous Region (Xizang) to provide a basis for the subsequent development of Hepatitis C publicity and education strategies. Methods: From August to September 2021, a special survey was conducted among 1 244 FSW and 234 MSM in 5 districts (counties) of 4 regions in Xizang. A one-on-one face-to-face questionnaire survey was adopted, and the χ² test and logistic regression were used to analyze the related factors of awareness of hepatitis C prevention and treatment among FSW and MSM. Results: The awareness rates of hepatitis C prevention and treatment knowledge among FSW and MSM were 35.0% (436/1 244) and 11.1% (26/234), respectively. Multivariate logistic regression analysis revealed that the positive related factors of FSW' awareness of hepatitis C prevention and treatment knowledge among those who had high school or technical secondary school education (aOR=4.72, 95%CI: 3.30-6.74) and college education or above (aOR=2.24, 95%CI: 1.58-3.18), those who experienced self-perceived risk of HCV infection (aOR=1.87, 95%CI: 1.43-2.45), negative related factors included married or cohabiting (aOR=0.58, 95%CI: 0.35-0.95), divorce or windowless (aOR=0.44, 95%CI: 0.27-0.72), no condom was used in the most recent commercial sexual activity (aOR=0.54, 95%CI: 0.43-0.69). The positive related factors of MSM's awareness of hepatitis C prevention and treatment knowledge were over 40 years old (aOR=8.65, 95%CI: 3.19-23.42) and having a self-perceived risk of HCV infection (aOR=6.25, 95%CI: 2.50-15.61). Conclusions: The awareness rate of hepatitis C prevention and treatment among FSW and MSM was relatively low in Xizang in 2021 and urgently needs to be improved. It is necessary to formulate targeted publicity strategies based on the characteristics of these two groups of people, increase publicity efforts, and expand the coverage of knowledge publicity to popularize key points about the clinical manifestations, treatment options, and transmission routes of hepatitis C, and carry out necessary warnings and education.
Humans
;
Male
;
Hepatitis C/therapy*
;
Health Knowledge, Attitudes, Practice
;
Surveys and Questionnaires
;
Sex Workers/psychology*
;
Homosexuality, Male
;
Female
;
Adult
;
China
;
Young Adult
;
Middle Aged
;
Logistic Models
9.Prevalence of complexity in primary care and its associated factors: A Singapore experience.
Jing Sheng QUEK ; Jeremy Kaiwei LEW ; Eng Sing LEE ; Helen Elizabeth SMITH ; Sabrina Kay Wye WONG
Annals of the Academy of Medicine, Singapore 2025;54(2):87-100
INTRODUCTION:
As the population ages, patient complexity is increasing, intensifying the demand for well-resourced, coordinated care. A deeper understanding of the factors contributing to this complexity is essential for optimising resource allocation. This study evaluates the prevalence of complex care needs in Singapore's primary care settings and identifies the factors associated with these needs.
METHOD:
Using a qualitative study design, we developed a patient complexity questionnaire to assess how Singapore family physicians recognise patient complexity. Sixty-nine experienced primary care physicians applied this tool to assess patient encounters, categorising each as "routine care" (RC), "medically challenging" (MC), or "complex care" (CC). We compared the care needs across these categories and used mixed-effects multinomial logistic regression to determine the independent predictors of complexity.
RESULTS:
Of the 4327 encounters evaluated, 15.0% were classified as CC, 18.5% as MC, and 66.4% as RC. In both CC and MC encounters, the most common medical challenges were polypharmacy (66.2% in CC, 44.9% in MC); poorly controlled chronic conditions (41.3% in CC, 24.5% in MC); and treatment interactions (34.4% in CC, 26.0% in MC). Non-medical issues frequently identified included low health literacy (32.6% in CC, 20.8% in MC); limited motivation for healthy lifestyle behaviours (27.2% in CC, 16.6% in MC); and the need for coordinated care with hospital specialists (24.7% in CC, 17.1% in MC). The top 3 independent predictors of complexity included mobility limitations requiring assistance (odds ratio [OR] for requiring wheelchair/trolley: 7.14 for CC vs RC, 95% confidence interval [CI] 4.74-10.74); longer consultation times with physicians (OR for taking >20 minutes for doctor's consultation: 3.96 for CC vs RC, 95% CI 2.86-5.48); and low socioeconomic status (OR for living in 1- or 2-room HDB flats: 2.98 for CC vs RC, 95% CI 1.74-5.13).
CONCLUSION
High care needs, encompassing both CC and MC encounters, were prevalent in primary care interactions. These findings highlight that relying solely on chronic disease count is insufficient to capture the full spectrum of patient complexity.
Singapore/epidemiology*
;
Humans
;
Primary Health Care/statistics & numerical data*
;
Male
;
Female
;
Middle Aged
;
Aged
;
Adult
;
Surveys and Questionnaires
;
Prevalence
;
Polypharmacy
;
Qualitative Research
;
Chronic Disease/therapy*
;
Logistic Models
10.Health-related quality of life in Singapore: Population norms for the EQ-5D-5L and EORTC QLQ-C30.
Jaclyn TAN ; Mervyn Jr LIM ; Ravindran KANESVARAN ; Richard NORMAN ; Wen Yee CHAY ; Mohamad Farid Bin HARUNAL RASHID ; Mihir GANDHI ; Madeleine KING ; Nan LUO
Annals of the Academy of Medicine, Singapore 2025;54(3):147-159
INTRODUCTION:
Comparison of patient health-related quality of life (HRQOL) scores to a reference group is needed to quantify the HRQOL impact of disease or treatment. This study aimed to establish population norms for 2 HRQOL questionnaires-EuroQol 5-dimension 5-level questionnaire (EQ-5D-5L) and European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire-Core Question-naire 30 (EORTC QLQ-C30) according to age, sex and ethnicity-and to explore relationships between the EQ-5D-5L, EORTC QLQ-C30 and sociodemographic characteristics. We used a representative sample of adult Singapore residents aged 21 years and above.
METHOD:
This study used data collected from a cross-sectional household survey in which 600 adult Singaporeans completed questions on sociodemo-graphic characteristics-the EQ-5D-5L and the EORTC QLQ-C30. Multiple linear regression analyses were conducted to explore associations between sociodemographic characteristics, the EQ-5D-5L scores and the EORTC QLQ-C30 scores. Regression-based population norms were computed for each subgroup using a post-stratification method.
RESULTS:
In multiple linear regression analysis, age was significantly associated with EQ-5D-5L index and visual analogue scale (VAS) scores, while no sociodemographic characteristics were significantly associated with EORTC QLQ-C30 summary scores. The normative EQ-5D-5L index and VAS scores decreased in adults aged 65 years and above, and EQ-5D-5L index scores were slightly lower in females than males and in non-Chinese than Chinese. The normative EORTC QLQ-C30 summary scores were slightly higher in Chinese than in the non-Chinese group and in the 45-64 age group than other age groups.
CONCLUSION
This study provides population norms for the EQ-5D-5L and EORTC QLQ-C30 for the general adult population in Singapore. Future studies of patient populations in Singapore using EQ-5D-5L or QLQ-C30 can use these normative data to interpret the HRQOL data collected.
Humans
;
Quality of Life
;
Singapore
;
Male
;
Female
;
Middle Aged
;
Adult
;
Cross-Sectional Studies
;
Aged
;
Surveys and Questionnaires
;
Young Adult
;
Health Status
;
Age Factors
;
Linear Models
;
Aged, 80 and over


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