1.Perioperative immune dynamics and clinical outcomes in patients undergoing on-pump cardiac surgery
Zhiyuan CHENG ; Xinyi LIAO ; Juan WU ; Ping YANG ; Tingting WANG ; Qinjuan WU ; Wentong MENG ; Zongcheng TANG ; Jiayi SUN ; Jia TAN ; Jing LIN ; Dan LUO ; Hao WANG ; Chaonan LIU ; Jiyue XIONG ; Liqin LING ; Jing ZHOU ; Lei DU
Chinese Journal of Blood Transfusion 2026;39(1):31-43
Objective: To characterize perioperative dynamic changes in immune-cell phenotypes and inflammatory cytokines in patients undergoing CPB (cardiopulmonary bypass) cardiac surgery, and to explore their associations with postoperative outcomes. Methods: In this prospective cohort study, 120 adult patients who underwent elective cardiac surgery under CPB at West China Hospital from May 2022 to March 2023 were enrolled. Perioperative immune-cell phenotypes and concentrations of 40 inflammation-related cytokines were measured. The primary outcomes were the sequential organ failure assessment (SOFA) score at 24 h after surgery and ΔSOFA (the peak SOFA score within 48 h after surgery minus the preoperative SOFA score). Secondary outcomes included major adverse cardiovascular events (MACE), acute kidney injury (AKI), respiratory failure, severe liver injury, and infection. Results: The mean age of enrolled patients was 57±10 years. Of these, 52% (62/120) were male and 90% (108/120) underwent valve surgery. During the rewarming to the end of CPB, neutrophil counts rapidly increased (7.39×10
/L vs preoperative 3.07×10
/L, P<0.001), with significant upregulation of CD11b (7.30×10
/L vs preoperative 3.05×10
/L, P<0.001) and CD54 (7.15×10
/L vs preoperative 2.99×10
/L, P<0.001). Lymphocyte counts increased at the end of CPB (1.75×10
/L vs preoperative 1.12×10
/L, P<0.001) but decreased significantly at 24 h after surgery (0.59×10
/L vs preoperative 1.12×10
/L, P<0.001). Plasma analysis showed that multiple pro-inflammatory cytokines increased during CPB and remained elevated up to 24 h after surgery; five chemokines and the anti-inflammatory cytokine IL-10 peaked at the end of CPB. The SOFA score increased from 1 (1, 2) preoperatively to 7 (5, 10) at 24 h after surgery, with a ΔSOFA of 6 (4, 8). Within 30 days after surgery, 48 patients (40.0%) developed AKI, 17 (14.2%) developed infection, 4 (3.3%) developed severe liver injury, 3 (2.5%) developed respiratory failure, and 3 (2.5%) experienced MACE. During the 2-year follow-up, 8 patients (6.7%) experienced MACE and 5 (4.2%) died. Conclusion: Multi-organ dysfunction is common after cardiac surgery under CPB (median ΔSOFA, 6), accompanied by perioperative activation of multiple immune-cell subsets and upregulation of pro-inflammatory, anti-inflammatory, and chemotactic mediators. This study provides data-driven evidence and research clues for further investigation of the associations between CPB-related immune perturbations and postoperative organ dysfunction and clinical outcomes.
2.Inverse Association Between Alcohol Consumption and Parkinson’s Disease Risk and Identification of RIT2 as a Linked Biomarker
Wei LU ; Xiu-Li CHENG ; Xiao-Yun PAN ; Dan-Dan YANG ; Hui-Ling ZOU ; Li-Guo DONG ; Yi-Liang WEI ; Gui-Yun CUI
Progress in Biochemistry and Biophysics 2026;53(6):1723-1733
ObjectiveAs a common lifestyle habit, alcohol consumption has a controversial association with the onset of Parkinson’s disease (PD). To demonstrate the correlation between alcohol consumption and PD and to identify associated genes, we integrated findings from clinical surveys, genomics, transcriptomics, and animal experiments. MethodsWe investigated the alcohol consumption rates (including both before and after disease onset) among 244 PD patients in China and 177 PD patients from the U.S. NHANES database. Mendelian randomization (MR) analysis was performed using genome-wide association study (GWAS) data for three alcohol-related traits and seven PD-related datasets from the MRC IEU OpenGWAS database. Transcriptomic data from the substantia nigra of PD patients were obtained from three GEO datasets (GSE7621, GSE20141, and GSE49036) to analyze RIT2 gene transcription. Finally, three groups of animal experiments (water/20% ethanol/20% liquor, with 4 C57BL/6J mice per group) were conducted to examine changes in brain RIT2 gene expression and transcriptomic profiles following alcohol consumption. ResultsThe alcohol consumption rates among PD patients in China and the U.S. (9%-18.87%) were significantly lower than the general population rates of 15%-45% in their respective regions (P<0.001), suggesting a possible negative association between alcohol consumption and PD. Subsequently, in 21 bidirectional MR analyses using 3 alcohol-related GWAS datasets and 7 PD-related GWAS datasets, the forward MR analyses (alcohol intake as exposure, PD as outcome) yielded 12 negative associations (ORIVW<1) and 9 positive associations (ORIVW>1). Among these, only two negative associations reached statistical significance: alcohol intake frequency (ORIVW=0.75, 95% CI: 0.60-0.93, P=0.010) and alcohol consumption (ORIVW=0.20, 95% CI: 0.05-0.83, P=0.026). The forward MR analysis (alcohol intake→PD) identified 235 SNPs, annotated to 316 genes, while the reverse MR analyses (PD→alcohol intake) identified 37 SNPs, annotated to 53 genes. Notably, only the RIT2 gene appeared in both the forward and reverse MR analyses (alcohol intake→PD: rs28597806, rs8083110; PD→alcohol intake: rs4588066). RIT2 is selectively expressed in the human brain (FPKM: 5.259±2.103), with low or no expression in peripheral tissues (FPKM: <1). Analysis of three human substantia nigra transcriptomic datasets revealed a decreasing trend in RIT2 gene expression in PD patients (GSE20141 array signal: 3.49±1.23 vs. 2.33±0.87, P=0.044). Animal experiments demonstrated that administration of 20% ethanol or 20% liquor (approximately 8% ethanol) stimulated a >2-fold upregulation of RIT2 gene expression in the mouse brain. Furthermore, transcriptomic sequencing revealed that the two alcohol-treated groups exhibited 96 (20% ethanol vs. water control) and 4 (20% liquor vs. water control) differentially expressed genes, respectively, indicating that low-dose alcohol consumption can achieve RIT2 upregulation while minimizing impact on other brain genes. In addition to its anti-infective effects, low-dose alcohol consumption primarily influences signaling pathways related to neurodegenerative diseases such as PD and Prion diseases. ConclusionAlcohol consumption is generally considered as a harmful lifestyle habit. However, some studies have also shown a lower risk of mortality among individuals who consume low doses of alcohol (100 g/week of ethanol) or drink occasionally. Currently, one of the research focuses on alcohol consumption is whether the human body can benefit from low-dose alcohol intake. This study provides new evidence supporting a negative association between alcohol consumption and PD, and for the first time, through MR analysis, identifies the RIT2 gene as a potential mediator of the effect of alcohol consumption on PD. RIT2 is selectively expressed in the human brain. Building upon existing evidence indicating downregulated RIT2 gene expression in PD pathogenesis, our experiments confirm that low-dose alcohol consumption can upregulate RIT2 expression in the brain. In brief, alcohol consumption may suppress the pathogenesis of PD by upregulating RIT2 expression in the substantia nigra. China is facing a serious problem of population aging. This study offers important insights for long-term PD prevention and treatment strategies, with the aim of benefiting more potential PD patients through lifestyle modifications, thereby improving the quality of life of the aging population and reducing the economic burden on healthcare.
3.Analysis of soil-borne nematode infection status among rural communities in Yubei, Chongqing
Dan JIANG ; Yong-dong HAO ; Sen-ping YANG ; Xiao-yuan SU ; Hua-jun BAI ; Bo LYU ; Ya-ling RAN ; He-yi GUAN ; Ling HU
Acta Parasitologica et Medica Entomologica Sinica 2026;33(2):85-89
Objective To analyze the infection status and epidemic trends of soil-borne nematode infections in Yubei, Chongqing City, in 2010,2021, and 2022. Methods The local populations from four survey sites of four towns in 2010 and five sites of five towns in 2021 and 2022 were surveyed regarding their basic information using a unified form. Fecal samples of the participants were collected and tested for soil-borne nematode infections using the modified Kato-Katz thick smear method. Results In 2010, 2 049 participants were surveyed, followed by 1 000 participants in 2021 and 2022. The overall prevalence of parasitic infections declined significantly from 3.86% to 0.20%. In 2010, soil-transmitted nematode included hookworms(3.81%) and roundworms(0.29%). In 2021, the infection rates of roundworms and hookworms were 1.70% and 0.10% respectively. Notably, only Ascaris was identified in 2022(0.20%). The≥60 age group consistently exhibited the highest infection rates across all surveys, followed by the 40-59 age group. The infection rates of males in the three surveys were 3.31%,1.92%, and 0.20% respectively, and those of females were 4.37%, 1.46%, and 0.20% respectively. There was no statistically significant difference in the infection rates between males and females. Educational attainment was inversely associated with infection; in 2010, the highest prevalence was observed among those with primary education or below, whereas in 2021, illiterate or semi-literate individuals showed the highest susceptibility. The occupational distribution of infections in 2010 indicated that retirees (8.33%), farmers(4.86%), and homemakers or unemployed individuals(3.45%)were the most affected. However, in 2021 and 2022, farmers emerged as the predominant occupational group with soil-transmitted nematode infections. Conclusions The infection rate of soil-borne nematodes showed a decreasing trend in Yubei, and the infection species changed from hookworms in 2010 to Ascaris in 2022. Farmers, the elderly, and people with low education levels should continue to be the focus of preventive and control efforts.
4.Status of comorbidity of overweight, obesity, and depressive symptoms among middle school students in Hubei Province and its association with school bullying
Donghao LI ; Ling LIU ; Fei PENG ; Shuang LIU ; Kui MA ; Dan LUO
Journal of Public Health and Preventive Medicine 2026;37(4):51-55
Objective To investigate the association between school bullying and comorbidity of overweight/obesity and depressive symptoms in middle school students, and to provide a basis for formulating intervention strategies for the prevention and control of common diseases and comorbidities among students. Methods In September 2023, a stratified cluster random sampling method was employed to select junior high school, high school, and vocational high school students in 103 districts and counties across 17 cities (prefectures) in Hubei Province. A questionnaire survey was conducted on these students regarding school bullying and depressive symptoms, and physical measurements of height and weight were taken. The association between school bullying and comorbidity of overweight/obesity and depressive symptoms was analyzed using a logistic regression model. Results A total of 99 921 middle school students aged 11-19 years old were included in the study. The detection rate of overweight/obesity was 29.39%, the detection rate of depressive symptoms was 31.15%, and the detection rate of comorbidity of overweight/obesity and depressive symptoms was 9.15%. Among all students, 24.12% reported experiencing school bullying. Multivariate logistic regression analysis showed that experiencing school bullying was positively associated with the comorbidity of overweight/obesity and depressive symptoms among middle school students (OR = 2.692, 95% CI: 2.571-2.817, P < 0.001). Stratified analysis results showed that both male and female students who experienced school bullying were more likely to have comorbidity of overweight/obesity and depressive symptoms (OR values were 2.756 for males and 2.594 for females; P values were both < 0.001). Students in all educational stages who experienced school bullying had an increased risk of comorbidity of overweight/obesity and depressive symptoms (OR values were 2.739 for junior high, 2.676 for senior high, and 2.378 for vocational high; P values were all < 0.001). Conclusion The comorbidity of overweight/obesity and depressive symptoms among middle school students is widespread, and there is a significant association between school bullying and comorbidity of overweight/obesity and depressive symptoms. It is necessary to strengthen the prevention and control of school bullying to promote the healthy physical and mental development of adolescents.
5.Treatment of Meibomian Gland Dysfunction-Associated Dry Eye from the Perspective of "Promoting the Flow of Dampness to Moisten Dryness"
Dan WANG ; Wen LIU ; Peijuan WU ; Zhimin LIU ; Ling CAI ; Xiangdong CHEN
Journal of Traditional Chinese Medicine 2026;67(21):2339-2343
It is considered that although meibomian gland dysfunction (MGD)-associated dry eye is mainly manifested by signs of dryness such as ocular dryness and burning sensation, it may also be accompanied by signs of dampness, including thick meibomian secretions, epigastric and abdominal fullness, and a greasy tongue coating, thus presenting a pattern characterized by the coexistence of dryness and dampness. Based on LIU Wansu's theory of "promoting the flow of dampness to moisten dryness", this disease is understood from the perspectives of an imbalance between dryness and dampness in the middle jiao (焦) and abnormal distribution of body fluids. For dampness and turbidity constraint and stagnation, treatment should focus on diffusing the lung, fortifying the spleen, promoting the flow of dampness, and resolving turbidity, with modified Sanren Decoction (三仁汤) combined with Shenling Baizhu Powder (参苓白术散) commonly used. For steaming of dampness-heat, treatment should focus on clearing heat, draining dampness, and moistening dryness with sweet and cool medicinals, with modified Jinzhi Qingmu Formula (金栀清目方) combined with Shashen Maidong Decoction (沙参麦冬汤) commonly used. For dryness-toxin damaging the physical form, treatment should focus on nourishing yin and blood, unblocking the collaterals, and resolving toxins, with modified Qiju Dihuang Pill (杞菊地黄丸) combined with Taohong Siwu Decoction (桃红四物汤) commonly used.
6.Role of Toll-like receptors in persistent infection of cervical high-risk human papillomavirus based on "latent pathogen theory".
Dan-Dan HONG ; Ting-Ting SHANG ; Hong-Yu GUO ; Wen-Ting ZUO ; Rui SUN ; Wen-Wen XU ; Qing-Ling REN
China Journal of Chinese Materia Medica 2025;50(7):1974-1979
Persistent infection with high-risk human papillomavirus(HR-HPV) is the primary etiological factor in cervical lesions and cervical cancer. Toll-like receptors(TLRs), as important pattern recognition receptors of the innate immune system, play a key role in the persistence of cervical HR-HPV infection. The "latent pathogen theory" in traditional Chinese medicine(TCM) holds that latent pathogens have both "latent" and "triggered" characteristics, which closely resemble the persistent infection and latent pathogenic potential of cervical HR-HPV. Guided by the "latent pathogen theory" and using contemporary immunological techniques, this paper explores the bidirectional immunomodulatory effects of TLRs in the persistence of cervical HR-HPV infection and their relationship with latent pathogens. The results indicate that TLRs play a crucial role in immune recognition and modulation. Dysregulation and overactivation of TLRs can induce chronic inflammation, allowing cervical HR-HPV to persist and evade immune detection. TLR dysfunction, coupled with a deficiency in healthy Qi that prevents the expulsion of pathogens, is a critical factor in the pathogenicity of latent pathogens. Restoring healthy Qi to modulate the immune functions of TLRs emerges as an important strategy for clearing cervical HR-HPV infection. By harmonizing the spleen and kidney and regulating immune balance, it is possible to reverse cervical HR-HPV infection, providing a scientific basis for clinical research.
Humans
;
Toll-Like Receptors/genetics*
;
Female
;
Papillomavirus Infections/genetics*
;
Papillomaviridae/immunology*
;
Persistent Infection/genetics*
;
Uterine Cervical Neoplasms/immunology*
;
Animals
;
Medicine, Chinese Traditional
;
Cervix Uteri/immunology*
;
Human Papillomavirus Viruses
7.Therapeutic effects and underlying mechanisms of Ganluqingwen formula on acute lung injury in mice
Xiang-Peng LI ; Feng-Sen LI ; Zheng LI ; Ling WANG ; Dan XU ; Qian-Qian LIANG
Medical Journal of Chinese People's Liberation Army 2025;50(7):868-875
Objective To investigate the therapeutic effects and underlying mechanisms of Ganluqingwen formula on lipopolysaccharide(LPS)-induced acute lung injury/acute respiratory distress syndrome(ALI/ARDS)in mice.Methods Fifty ICR mice were randomly divided into five groups:control,model,and Ganluqingwen formula(GLQW)low dose(7.10 g/kg),medium dose(15.21 g/kg),and high dose(30.42 g/kg)groups,with 10 mice per group.On days 1-3,mice in GLQW groups were daily gavaged with the corresponding dose of GLQW,while control and model groups received equal volumes of saline.On day 4,ALI/ARDS was induced in model and GLQW groups using intraperitoneal injection of LPS(20 mg/kg),while control group received an equal volume of PBS.At 24 h post-treatment,survival rate,wet-to-dry weight ratio(W/D)and lung histological changes(HE staining)were observed.Serum levels of tumor necrosis factor(TNF)-α,interferon gamma(IFN-γ),interleukin(IL)-4,IL-10,IL-12,as well as lung tissue levels of TNF-α,IFN-γ,IL-1β,IL-4,IL-6,IL-10 were measured by ELISA.Western blotting was used to determine the expression levels of NOD-like receptor thermal protein domain associated protein 3(NLRP3),cystatinase-1(Caspase-1),apoptosis-associated speck-like protein(ASC),and membrane perforating protein Gasdermin D(GSDMD)in lung tissue.Results No significant differences in survival rates were observed among the groups(P>0.05).Compared with control group,ELISA and Western blotting results showed that lung tissue W/D,IFN-γ,TNF-α,IL-4,IL-12,IL-1β,IL-6,NLRP3,ASC,and Caspase-1,GSDMD and serum IFN-γ,TNF-α,IL-4,IL-12 levels were significantly higher(P<0.05),and IL-10 levels in lung tissue and serum were significantly lower in mice of model group(P<0.05).Compared with model group,lung tissue W/D,IFN-γ,TNF-α,IL-1β,IL-4,IL-6,IL-12,NLRP3,ASC,Caspase-1,and GSDMD,and serum IFN-γ,TNF-α,IL-4,and IL-12 levels were significantly lower(P<0.05),and lung tissue IL-10 levels were significantly higher(P<0.05)in GLQW low,medium,and high dose groups,with high-dose group showing significantly higher level in serum IL-10(P<0.05).Compared with GLQW low-dose group,the lung tissue levels of IFN-γ,IL-6,NLRP3,ASC,Caspase-1,and GSDMD,and serum TNF-α were significantly lower(P<0.05),and lung and serum IL-10 levels were significantly higher in GLQW high-dose group(P<0.05).HE staining results showed that lung structure was clear and normal in control group;part of the lung interstitium was congested and hemorrhagic,and some of the fine bronchial periphery was infiltrated with inflammatory cells in model group;the phenomena of lung interstitial congestion and hemorrhage were reduced,and the degree of infiltration of inflammatory cells was alleviated in GLQW low-,medium-,and high-dose groups.Conclusion Ganluqingwen formula can delay the development of ALI/ARDS in mice by inhibiting NLRP3/Caspase-1/GSDMD pathway,thereby suppressing cellular pyroptosis.
8.Efficacy of Beckman oral-motor training combined with auditory integration training on rehabilitation of children with language development delay
Ying TIAN ; He LI ; Fang YUAN ; Chunhui SONG ; Qiulong XU ; Ling DU ; Runshuo LI ; Dan WANG
Journal of Clinical Medicine in Practice 2025;29(16):79-83
Objective To investigate the rehabilitation efficacy of Beckman oral-motor training combined with auditory integration training(AIT)in children with language development delay.Methods A total of 118 children diagnosed with language development delay were enrolled in this study,and randomly assigned to auditory training group or combined training group,with 59 cases in each group.Children in the auditory training group received AIT,while those in the combined train-ing group underwent Beckman oral-motor training combined with AIT.The clinical efficacy,intellec-tual development,language ability,oral motor function,articulation ability,and serum neurotrophic factor levels of the two groups were observed and compared.Results After treatment,the overall ef-fective rate in the combined training group was 93.22%(55/59),which was significantly higher than 79.66%(47/59)in the auditory training group,with a statistically significant difference(P<0.05).Following treatment,the scores of intellectual development,language ability,oral motor function,and articulation ability,as well as the serum levels of brain-derived neurotrophic factor(BDNF)and nerve growth factor(NGF)in both groups were elevated compared to the pre-treatment levels.Moreover,these parameters in the combined training group were superior to those in the audi-tory training group,and the differences were statistically significant(P<0.05).Conclusion Beck-man oral-motor training combined with AIT can enhance the rehabilitation outcome in children with language development delay,improving their speech function,intellectual development,oral motor function,articulation ability,and serum neurotrophic factor levels.
9.Risk factors for early diagnosis and prediction model development of of neonatal ABO-HDFN
Wenhua ZHANG ; Dan LIU ; Wenting ZHANG ; Jing LING
Chinese Journal of Blood Transfusion 2025;38(7):886-895
Objective: To investigate the risk factors affecting the early diagnosis of ABO-hemolytic disease of the fetus and newborn (ABO-HDFN) in neonates with maternal-fetal blood group incompatibility, and to develop a risk prediction model and validate its predictive performance, so as to provide a reference for the early diagnosis of neonates with ABO-HDFN in primary hospitals. Methods: A total of 1 229 neonates with maternal-fetal blood group incompatibility suspected of ABO-HDFN, admitted to our hospital between between June 2021 and September 2024, were enrolled. The sample size was calculated by using the events per variable (EPV) method. The cohort was divided into a modeling group (n=860) and a validation group (n=369), and the results and clinical information of laboratory examination indicators were collected. Univariate and multivariate logistic regression analysis were used to explore the risk factors affecting the early diagnosis of ABO-HDFN in neonates with maternal-fetal blood group incompatibility. The risk prediction model was developed and internally validated by the Bootstrap method. The goodness-of-fit of the model was evaluated by the Hosmer-Lemeshow (H-L) test, and the receiver operating characteristic (ROC) curve was used to analyze the predictive performance of the model. The prediction model was validated by using the validation group data, and the predictive performance of the model was evaluated. Results: Among the 860 neonates with maternal-fetal incompatibility in the modeling group, 346 (346/860, 40.23%) were diagnosed with ABO-HDFN. Univariate and multivariate logistic regression analyses identified the following as significant risk factors for early diagnosis: the number of postnatal days at specimen collection, maternal type O blood group, parity >1, time of onset for pathologic jaundice, maternal-fetal blood group incompatibility due to A antigen, the level of total bilirubin, and the immature reticulocyte fraction (IRF). A risk prediction model was established, and the calibration degree of the model was validated by the Bootstrap internal validation method, Brier=0.143. The results of H-L test showed that χ
=3.464, P=0.902. The area under the ROC curve (AUC) was 0.885. The maximum value of the Youden index was 0.611, the sensitivity was 0.832, and the specificity was 0.778. The results of the validation group showed that the area under the ROC curve was 0.863, with a sensitivity of 0.875 and specificity of 0.735. Conclusion: The risk prediction model developed based on these risk factors has good predictive performance for ABO-HDFN, facilitating early diagnosis of suspected ABO-HDFN cases by clinicians in primary hospitals.
10.Risk factors for early diagnosis and prediction model development of of neonatal ABO-HDFN
Wenhua ZHANG ; Dan LIU ; Wenting ZHANG ; Jing LING
Chinese Journal of Blood Transfusion 2025;38(7):886-895
Objective: To investigate the risk factors affecting the early diagnosis of ABO-hemolytic disease of the fetus and newborn (ABO-HDFN) in neonates with maternal-fetal blood group incompatibility, and to develop a risk prediction model and validate its predictive performance, so as to provide a reference for the early diagnosis of neonates with ABO-HDFN in primary hospitals. Methods: A total of 1 229 neonates with maternal-fetal blood group incompatibility suspected of ABO-HDFN, admitted to our hospital between between June 2021 and September 2024, were enrolled. The sample size was calculated by using the events per variable (EPV) method. The cohort was divided into a modeling group (n=860) and a validation group (n=369), and the results and clinical information of laboratory examination indicators were collected. Univariate and multivariate logistic regression analysis were used to explore the risk factors affecting the early diagnosis of ABO-HDFN in neonates with maternal-fetal blood group incompatibility. The risk prediction model was developed and internally validated by the Bootstrap method. The goodness-of-fit of the model was evaluated by the Hosmer-Lemeshow (H-L) test, and the receiver operating characteristic (ROC) curve was used to analyze the predictive performance of the model. The prediction model was validated by using the validation group data, and the predictive performance of the model was evaluated. Results: Among the 860 neonates with maternal-fetal incompatibility in the modeling group, 346 (346/860, 40.23%) were diagnosed with ABO-HDFN. Univariate and multivariate logistic regression analyses identified the following as significant risk factors for early diagnosis: the number of postnatal days at specimen collection, maternal type O blood group, parity >1, time of onset for pathologic jaundice, maternal-fetal blood group incompatibility due to A antigen, the level of total bilirubin, and the immature reticulocyte fraction (IRF). A risk prediction model was established, and the calibration degree of the model was validated by the Bootstrap internal validation method, Brier=0.143. The results of H-L test showed that χ
=3.464, P=0.902. The area under the ROC curve (AUC) was 0.885. The maximum value of the Youden index was 0.611, the sensitivity was 0.832, and the specificity was 0.778. The results of the validation group showed that the area under the ROC curve was 0.863, with a sensitivity of 0.875 and specificity of 0.735. Conclusion: The risk prediction model developed based on these risk factors has good predictive performance for ABO-HDFN, facilitating early diagnosis of suspected ABO-HDFN cases by clinicians in primary hospitals.


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