Objective: To analyze the structural changes in whole blood and apheresis platelet donations in Chinese Society of Blood Transfusion (CSBT) sentinel units from 2021 to 2025, and to provide evidence for donor recruitment and blood service management. Methods: Aggregated data reported by sentinel sites were collected and stratified according to six indicators: age, sex, donation history, donation volume, donation site, and organization mode. Pearson χ test, Cramer′V coefficient, Cochran-Armitage trend test and simple linear regression were adopted for analysis. Results: A total of 16 256 973 whole blood donations and 1 576 546 apheresis platelet donations were included. Among whole-blood donations, the proportion of donors aged 18-22 years decreased from 27.30% to 10.60%. The proportion of male donors increased from 58.81% to 63.13%; the proportion of people aged 30 and above increased from 58.40% to 75.30%; the proportion of fixed locations rose from 28.37% to 36.57%; the proportion of social groups increased from 21.69% to 39.69%. The 400-mL donations decreased from 62.12% to 53.46%, while individually initiated voluntary donations remained above 50%. Apheresis platelet donations were predominantly from males, individuals aged 30-39 years, and repeat donors; 2-treatment-unit apheresis platelet donations increased from 67.19% to 74.93%, and individually initiated donations accounted for 92.97%-96.02%. Statistically significant overall annual compositional differences were observed for all six indicators (all P<0.001), whereas linear trends for some sub-categories were not statistically significant. Conclusion: In the participating CSBT sentinel units, among whole blood donations, the proportions of donors aged 18-22 years, university-organized group donations, and donations at blood mobiles decreased, whereas the proportions of organizational group donations and donations at fixed venues increased. The apheresis platelet donation cohort is relatively mature and is evolving toward a high-efficiency donation model. Individual voluntary donation remains the primary organization mode for both donation types. Strategies such as youth donor recruitment, optimized layout of fixed donation sites, and retention of repeat donors should be strengthened to improve the resilience of blood supply.

Objective To investigate the clinical advantages and safety of an acupoint auto-positioning moxibustion robot combined with massage techniques in the treatment of lumbar disc herniation.Methods Totally 114 patients with lumbar disc herniation treated between June 2021 and December 2023 at Yueyang Hospital of Integrated Traditional Chinese and Western Medicine,Shanghai University of Traditional Chinese Medicine,the Outpatient Department of Rehabilitation Medicine,Changhai Hospital and Shanghai Third Rehabilitation Hospital were divided into control group and experimental group with random number table method,with 57 cases in each group.The control group received conventional moxibustion combined with massage techniques,while the experimental group was treated using an acupoint auto-positioning moxibustion robot combined with massage techniques.Both groups underwent treatment once every three days,totaling 10 sessions over one month.Clinical efficacy was observed between the two groups by comparing pre-treatment and post-treatment(after 3,6 and 10 sessions)scores on the visual analogue scale(VAS)for pain,the Japanese Orthopaedic Association(JOA)lower back pain score,and lumbar range of motion(LROM).Adverse reactions during the intervention were recorded.Satisfaction with the moxibustion robot in the experimental group was assessed using a Likert scale.Additionally,20 healthy subjects were recruited to evaluate the accuracy of the robot's acupoint auto-positioning function.Results The overall effective rate was 91.23%(52/57)in the experimental group and 94.74%(54/57)in the control group,without statistical significance between the two groups(P>0.05).Compared to pre-treatment,both groups showed significant improvements in VAS scores,JOA scores and LROM across all measured directions after 3,6,and 10 treatment sessions(P<0.001).In the Likert scale assessment,86.96%of subjects agreed that the device was convenient to use,87.72%agreed that the device was safer than conventional moxibustion therapy,and 94.74%were willing to recommend the device to other patients.The accuracy evaluation of the acupoint auto-positioning moxibustion robot demonstrated that the average deviation between robot-positioned acupoints and standard acupoints was(1.68±0.46)mm,achieving a positioning accuracy rate exceeding 95%.No adverse reactions were reported during the intervention.Conclusion The combination of an acupoint auto-positioning moxibustion robot with massage techniques is as effective as conventional moxibustion combined with massage techniques in improving clinical symptoms,alleviating pains,enhancing lumbar function and increasing lumbar mobility in patients with lumbar disc herniation.Participants have exhibited a high willingness to use the device,and the robot achieved a high accuracy rate in acupoint positioning.

Objective To monitor the dynamic changes in liver stiffness and their correlation with clinical indicators among chronic hepatitis B virus (HBV) infected individuals in Wuwei City, Gansu Province, and to provide important evidence for the early detection and effective intervention of liver fibrosis (LF) progression. Methods Based on the Wuwei Hepatitis B Specialty Cohort, this study conducted annual serological and FibroScan ultrasonographic examinations for 3 882 chronic HBV-infected individuals. Over an average of 4 years of follow-up, the liver fibrosis outcome was monitored, and influencing factors were analyzed by constructing a logistic regression model. Results Among the 2 053 chronic HBV-infected individuals who completed at least one follow-up, baseline LF grades F0 to F4 were distributed as follows: 1 581 cases (77.0%), 164 cases (8.0%), 99 cases (4.8%), 110 cases (5.4%), and 99 cases (4.8%), respectively. Significant differences were observed among the five groups in terms of age, gender, smoking, antiviral treatment, liver function indicators, control attenuation index (CAP), and liver stiffness measurement (LSM) (P<0.05). After an average of 4 years of follow-up, 1 686 cases (17.9/100 person-years) showed no significant change in LF grade, 260 cases (2.8/100 person-years) demonstrated a decrease in LF grade, and 107 cases (1.1/100 person-years) exhibited an increase in LF grade. Stratified by baseline treatment status, among patients with chronic HBV infection who did not undergo treatment, baseline alanine aminotransferase (ALT) (OR=5.50, 95%CI：1.79-16.83, P=0.003) and LSM (OR=3.35, 95%CI：1.23-9.13, P=0.018) were identified as risk factors for LF progression. In contrast, among patients who underwent antiviral treatment, baseline aspartate aminotransferase (AST) (OR=2.23, 95%CI：1.41-3.53, P<0.001) and total bilirubin (TBIL) (OR=1.79, 95%CI：1.14-2.81, P=0.012) levels were identified as risk factors for LF progression. Conclusion LSM and liver function indicators, such as ALT, AST, and TBIL, are important influencing factors for LF progression. The monitoring of LSM and liver function indicators will be of great significance for the prevention and early diagnosis of liver cirrhosis.

Objective:To describe the current status and research methods of external validation studies of risk prediction models conducted by nursing scholars in China.Methods:Using the search terms "predictive model, external validation, nursing, risk prediction, external validation, nursing" this study searched eight databases (China Biology Medicine disc, China National Knowledge Infrastructure, Wanfang Data, VIP, Embase, PubMed, CINAHL, and Web of Science) for studies published up to June 2023. Literature was imported into EndNote software for organization and deduplication. Two researchers independently conducted initial and secondary screenings by reading the titles, abstracts, and full texts of studies according to inclusion and exclusion criteria. Descriptive analysis was conducted on the included studies under the framework of the Joanna Briggs Institute (JBI) scoping review methodology.Results:A total of 70 studies (15 dissertations and 55 journal articles), primarily published from 2021 to 2023, were included. Among 246 risk prediction models constructed by nurses, 28.5% (70/246) underwent external validation. The models focused on issues such as infection, cognitive impairment, skin injury, thrombosis, and malnutrition. Most studies were conducted in single-center settings (71.4%, 50/70), with temporal validation being the most common type (67.1%, 47/70). The majority of models were presented as nomograms, though some studies had methodological issues in validation.Conclusions:In recent years, new prediction models for specific diseases or endpoints have continued to emerge from nursing research in China, yet few have undergone external validation for clinical application, and the quality and methods of validation require improvement. Future researchers should standardize and strengthen the external validation and optimization of risk prediction models, focusing on clinical applicability to enhance the practical value of these models.

Objective:To evaluate the levels and source of cadmium exposure by dietary pathway among middle-aged and elderly people ≥40 in cadmium-contaminated areas of China.Methods:A total of 7 193 people aged 40-89 years from four typical cadmium-contaminated areas in China were selected as the study subjects. Food Frequency Questionnaire (FFQ), Total Diet Study (TDS) and a 3-day-24-hour dietary recall survey were conducted. Dietary cadmium intake and food sources through dietary pathways were assessed based on cadmium content in foods, consumption amounts and intake frequencies.Results:The mean age of the participants was 63.39±12.21 years, with 50.05% being males. The average monthly dietary cadmium intake was 7.39 μg/(kg·BW). Staple foods and vegetables were the primary sources of dietary cadmium intake, accounting for 57.51% and 32.48%, respectively. The monthly dietary cadmium intake in all surveyed regions did not exceed the Provisional Tolerable Monthly Intake (PTMI) recommended by the Joint FAO/WHO Expert Committee on Food Additives (JECFA).Conclusion:The monthly dietary cadmium intake among middle-aged and elderly people in cadmium-contaminated areas of China is relatively low, with the risk remaining at an acceptable level. Staple foods and vegetables are the most significant contributors to dietary cadmium intake.

Objective To investigate the current nursing practice of nurses specializing in nutritional support in ICUs and analyze their influencing factors in order to improve the training program and promote the development of standardized and precise nursing practice.Methods Convenience sampling method was used to select nutritional support nurses in ICUs in 29 provinces(autonomous regions and municipalities)from October 2023 to March 2025,and the self-developed questionnaire on nursing practice behaviors of nutritional support nurses in ICUs was used to conduct the survey.SPSS 21.0 software was used for descriptive analysis and multiple linear regression analysis.Results A total of 774 questionnaires were distributed,and 766 valid questionnaires were collected,with a recovery rate of 98.97％,and the score of the questionnaire on nursing practice behaviors of nurses specializing in nutritional support in ICU was(90.41±1 1.82).The results of multiple linear regression analysis showed that gender,presence of a nutritional support nursing team in the hospital,a standardized process of nutritional support nursing in the department,clear positional responsibilities of the nutritional support nursing team members,and inclusion of the nutritional support status of the patients in the quality management of the department were the factors influencing the nursing practice behavior scores of the nurses specializing in nutritional support in ICUs(P＜0.05).Conclusion Nurses in the ICUs have a high level of nursing practice behavior,but there is a need for further standardization in parenteral nutrition infusion and monitoring of complications.ICU nursing managers should formulate improvement strategies to address the weaknesses of clinical practice,strengthen nutritional support training,and improve the quality management program,and further improve the practical ability of nurses specializing in nutritional support.

Objective:To evaluate the application effect of a wearable visual field meter based on extended reality (XR) glasses for patients with macular disease.Methods:A self-controlled study was conducted.A total of 41 consecutive patients (41 eyes) with macular disease were recruited at Renmin Hospital of Wuhan University from October 2022 to October 2024.All patients underwent 10-2 center visual field test using a self-developed wearable visual field meter (XRVF), and the results were compared with those obtained using a traditional Humphrey field analyzer (HFA).The comparison parameters included mean retinal sensitivity (MS), false positive rate (FPR), false negative rate (FNR), and testing duration.A subject satisfaction questionnaire was administered.This study followed the Declaration of Helsinki.The study protocol was approved by the Medical Ethics Committee of Renmin Hospital of Wuhan University (No.WDRY2024-K263), and all subjects signed the informed consent form.Results:The retinal sensitivity of patients measured by HFA was (23.24±3.71)dB, which was higher than (22.01±3.45)dB by XRVF, showing a statistically significant difference ( t=4.924, P=0.036).The FPR measured by HFA and XRVF were (2.39±2.51)% and (2.59±3.29)%, respectively, and the FNR were (3.49±6.05)% and (3.74±5.38)%, respectively, showing no statistically significant difference ( t=-3.624, P=0.948; t=-1.241, P=0.519).The median test duration for HFA and XRVF was 6.15 (5.78, 6.65) and 5.98 (5.71, 6.69)minutes, respectively, without statistically significant difference ( Z=-1.987, P=0.953).92.6% of the subjects thought the device was comfortable, simple and practical. Conclusions:The XRVF has good consistency with the HFA, can effectively and reliably evaluate the visual field function of patients with macular disease, and is easily accepted by patients.

Objective To investigate the clinical advantages and safety of an acupoint auto-positioning moxibustion robot combined with massage techniques in the treatment of lumbar disc herniation.Methods Totally 114 patients with lumbar disc herniation treated between June 2021 and December 2023 at Yueyang Hospital of Integrated Traditional Chinese and Western Medicine,Shanghai University of Traditional Chinese Medicine,the Outpatient Department of Rehabilitation Medicine,Changhai Hospital and Shanghai Third Rehabilitation Hospital were divided into control group and experimental group with random number table method,with 57 cases in each group.The control group received conventional moxibustion combined with massage techniques,while the experimental group was treated using an acupoint auto-positioning moxibustion robot combined with massage techniques.Both groups underwent treatment once every three days,totaling 10 sessions over one month.Clinical efficacy was observed between the two groups by comparing pre-treatment and post-treatment(after 3,6 and 10 sessions)scores on the visual analogue scale(VAS)for pain,the Japanese Orthopaedic Association(JOA)lower back pain score,and lumbar range of motion(LROM).Adverse reactions during the intervention were recorded.Satisfaction with the moxibustion robot in the experimental group was assessed using a Likert scale.Additionally,20 healthy subjects were recruited to evaluate the accuracy of the robot's acupoint auto-positioning function.Results The overall effective rate was 91.23%(52/57)in the experimental group and 94.74%(54/57)in the control group,without statistical significance between the two groups(P>0.05).Compared to pre-treatment,both groups showed significant improvements in VAS scores,JOA scores and LROM across all measured directions after 3,6,and 10 treatment sessions(P<0.001).In the Likert scale assessment,86.96%of subjects agreed that the device was convenient to use,87.72%agreed that the device was safer than conventional moxibustion therapy,and 94.74%were willing to recommend the device to other patients.The accuracy evaluation of the acupoint auto-positioning moxibustion robot demonstrated that the average deviation between robot-positioned acupoints and standard acupoints was(1.68±0.46)mm,achieving a positioning accuracy rate exceeding 95%.No adverse reactions were reported during the intervention.Conclusion The combination of an acupoint auto-positioning moxibustion robot with massage techniques is as effective as conventional moxibustion combined with massage techniques in improving clinical symptoms,alleviating pains,enhancing lumbar function and increasing lumbar mobility in patients with lumbar disc herniation.Participants have exhibited a high willingness to use the device,and the robot achieved a high accuracy rate in acupoint positioning.

Objective:To explore the relationship between urinary cadmium levels and thyroid hormone levels in people aged 40-89 years old in selected areas of China.Methods:Based on the "Investigation of the Impact of Soil Quality of Agricultural Land on Human Health in Typical Areas" project from October 2019 to August 2020, a multi-stage stratified random sampling method was used to include 6 588 middle-aged and older adults aged 40-89. Demographic characteristics, dietary frequency and disease status were collected through the questionnaire and physical examination. Urinary cadmium and urinary creatinine were detected by random midstream urine. Fasting venous blood was collected for the detection of Triiodothyronine (T3) and Thyroxine (T4). The linear mixed effects model was used to explore the association of urine cadmium levels with thyroid hormone levels. Its dose-response relationship was explored by using the restricted cubic spline.Results:The age of the subjects was (63.48±12.18) years, with males accounting for 51.28%. The M ( Q 1,Q 3) of urinary cadmium level, T3 and T4 was 2.48 (1.36, 4.42) μg/g·creatinine, (1.96±0.51) nmol/L and (113.75±29.11) nmol/L, respectively. The linear mixed effects model showed that the changes of T3 and T4 were 0.027 (0.009, 0.044) nmol/L and 2.019 (1.084, 2.953) nmol/L for each one-unit increase (natural logarithm transformed) of urinary cadmium. The restricted cubic spline showed that there was a positive nonlinear association between urinary cadmium and T3 as well as T4 (all Pnonlinear<0.05). Conclusion:In selected areas of China, the urinary cadmium level of middle-aged and older adults aged 40-89 years is positively associated with T3 and T4.

Objective:To evaluate the levels and source of cadmium exposure by dietary pathway among middle-aged and elderly people ≥40 in cadmium-contaminated areas of China.Methods:A total of 7 193 people aged 40-89 years from four typical cadmium-contaminated areas in China were selected as the study subjects. Food Frequency Questionnaire (FFQ), Total Diet Study (TDS) and a 3-day-24-hour dietary recall survey were conducted. Dietary cadmium intake and food sources through dietary pathways were assessed based on cadmium content in foods, consumption amounts and intake frequencies.Results:The mean age of the participants was 63.39±12.21 years, with 50.05% being males. The average monthly dietary cadmium intake was 7.39 μg/(kg·BW). Staple foods and vegetables were the primary sources of dietary cadmium intake, accounting for 57.51% and 32.48%, respectively. The monthly dietary cadmium intake in all surveyed regions did not exceed the Provisional Tolerable Monthly Intake (PTMI) recommended by the Joint FAO/WHO Expert Committee on Food Additives (JECFA).Conclusion:The monthly dietary cadmium intake among middle-aged and elderly people in cadmium-contaminated areas of China is relatively low, with the risk remaining at an acceptable level. Staple foods and vegetables are the most significant contributors to dietary cadmium intake.