Status of the poor vision among 3 014 primary school students in Wucheng district of Jinhua city and analysis of the influencing factors / 国际眼科杂志(Guoji Yanke Zazhi)

AIM: To explore the prevalence and influencing factors of poor vision among 3 014 primary school students in Wucheng District, Jinhua City, in order to provide evidence for the intervention measures of poor vision.METHODS: Using a cross-sectional study, a self-designed questionnaire was done, including general conditions and influencing factors of vision. The international standard logarithmic visual acuity chart was used for visual acuity detection. The risk factors that were statistically significant among the single factor groups were used as independent variables for multivariate Logistic regression analysis.RESULTS: A total of 1 367 students with poor vision were detected, the detection rate was 45.36%, among which mild poor vision rare was 26.08%; moderate rate was 11.51%; and severe rate was 7.76%. Multivariate Logistic regression analysis showed that senior grades, parental myopia, daily insufficient sleep and outdoor activity, overuse of electronics or computers and no eye exercise were risk factors for poor vision.CONCLUSION: The rate of poor vision among the primary school students was severe, schools should take measures to improve and prevent students' poor vision by increasing outdoor activity time, correcting poor reading and writing posture, and reducing the time spent on electronic products.

The Effect of Modified Shugan Dingji Decoction （疏肝定悸汤） on the Occurrence of Endpoint Events in Patients with Paroxysmal Atrial Fibrillation of Liver Constraint and Qi Stagnation： A Retrospective Cohort Study / 中医杂志

ObjectiveTo retrospectively analyze the effect of modified Shugan Dingji Decoction （疏肝定悸汤） on the occurrence of endpoint events in patients with paroxysmal atrial fibrillation of liver constraint and qi stagnation. MethodsA retrospective cohort study was conducted using the electronic medical record database of Longhua Hospital affiliated to Shanghai University of Traditional Chinese Medicine to screen and include patients with paroxysmal atrial fibrillation of liver constraint and qi stagnation from January 1st， 2018， to December 31th， 2021. The included patients were divided into an exposure group and a non-exposure group， each consisting of 100 cases， based on whether they received modified Shugan Dingji Decoction. General information of the patients including age， gender， body mass index， duration of illness and comorbidities， medication history， cardiac structure and function indicators such as left atrial diameter， left ventricular end-diastolic diameter， stroke volume and ejection fraction， and the occurrence of endpoint events assessed through 24-hour dynamic electrocardiography or electrocardiogram to determine the recurrence of paroxysmal atrial fibrillation were collected. Kaplan-Meier （K-M） curves and Log-Rank tests were used to conduct survival analysis on the occurrence of endpoint events in the two groups of patients. Univariate and multivariate Cox regression analyses were used to analyze the impact of various factors on entry into endpoint events. Additionally， a safety assessment was performed by comparing liver and kidney function indicators before and after treatment. ResultsIn the non-exposure group， a total of 49 cases （49.0%） experienced endpoint events， while in the exposure group， there were 26 cases （26.0%）. The Log-rank test indicated significant difference between the two groups （χ2=11.211， P=0.001）. Univariate Cox regression analysis showed that age， duration of illness， hypertension， diabetes， chronic heart failure， left atrial diameter， stroke volume， and the use of modified Shugan Dingji Decoction may be the influencing factors for the occurrence of endpoint events in patients with paroxysmal atrial fibrillation of liver constraint and qi stagnation （P＜0.05 or P＜0.01）. Multivariate Cox regression analysis showed that the risk of endpoint events in the exposure group was significantly lower than that in the non-exposure group （P＜0.01）. Patients with a duration of illness ＞12 months had a significantly higher risk of endpoint events compared to those with a duration of illness ≤12 months （P＜0.01）. Patients without concomitant hypertension had a lower risk of endpoint events compared to those with hypertension （P＜0.05）. Patients with left atrial diameter ＞40 mm had significantly higher risk of endpoint events than those with left atrial diameter ≤40 mm （P＜0.01）. There was no statistically significant difference in liver and kidney function indicators between the two groups before and after treatment （P＞0.05）. ConclusionThe use of modified Shugan Dingji Decoction is a protective factor for patients with paroxysmal atrial fibrillation of liver constraint and qi stagnation， which can help to reduce the recurrence and progression of atrial fibrillation. Long duration of illness， concomitant hypertension， and enlarged left atrial diameter are risk factors for patients to experience endpoint events.

Efficacy of high-intensity focused ultrasound cycloplasty in glaucoma and its influencing factor / 国际眼科杂志(Guoji Yanke Zazhi)

AIM: To evaluate the efficacy of high-intensity focused ultrasound cyclo plasty(UCP)in the treatment of glaucoma and to investigate related influencing factors.METHODS: The study involved a total of 110 patients(134 eyes)who received UCP treatment between January 2019 and January 2022 at three medical centers: Tianjin Eye Aier Eye Hospital, Chongqing Aier Eye Hospital, and Chongqing Nanping Aier Eye Hospital. Patients were classified into three categories: primary angle-closure glaucoma, primary open-angle glaucoma, and secondary glaucoma. Best corrected visual acuity, intraocular pressure, and the usage of anti-glaucoma medications, etc., were recorded at 6 and 12 mo postoperatively.RESULTS: After 6 months of the UCP procedure, statistically significant differences in intraocular pressure were observed across all groups(all P<0.05). At 12 mo postoperatively, intraocular pressure of the primary angle-closure and primary open-angle glaucoma groups showed differences(all P<0.05). Notably, there were no significant changes in visual acuity at either the 6 or 12 mo compared to preoperative values across all patient groups(all P>0.05). Furthermore, the study identified a statistically significant correlation between the changes in intraocular pressure at 6 mo and factors such as age, history of previous glaucoma surgery, baseline white-to-white(corneal diameter), and the extent of UCP treatment(all P<0.05).CONCLUSION: The UCP procedure has been demonstrated to effectively lower intraocular pressure in patients with glaucoma. The efficacy appears to be influenced by variables including patient age, previous glaucoma surgery history, baseline white-to-white(corneal diameter), and the scope of UCP treatment. Importantly, UCP treatment did not adversely affect visual acuity, underscoring its favorable safety profile.

A Study On Factors Influencing Consumer Buying Behaviour Towards Online Shopping In Karaikudi Town

The idea of online purchases is becoming more popular as a result of the development in the fields of information and technology. People now look for alternate options for purchasing because they do not have enough time to directly go to a store to place an order. Nowadays, individuals prefer to make online purchases, use credit or debit cards to pay their utility bills, and have goods delivered to their doorstep at a cheaper and more attractive price. The current study was carried out to assess influencing factors in Karaikudi town and to rank influencing factors with online shopping. Primary data have been collected from 120 respondents in the study area with the help of an interview schedule. Percentage analysis and the ranking method were used to analyse the collected data. The findings of the study reveal that majority of the respondents (55.83%) are male, most of the respondents (35.84%) belong to the age group upto 25, and 34.17% of the respondents purchased clothing through online shopping

A study on the Charlson comorbidity index and health-related quality of life in the middle-aged and elderly osteoporosis population / 中国骨伤

OBJECTIVE@#To explore the characteristics of comorbidities in patients with osteoporosis(OP) and factors associated health-related quality of life, so as to provide decision-making reference for improving the ability of disease co-prevention and co-treatment and the patient's life-cycle quality of life.@*METHODS@#From November 2017 to July 2018, clinical information and biological samples from residents in 10 communities in Chaoyang District and Fengtai Distric of Beijing were collected, and bone density testing was conducted. Based on the Charlson comorbidity index (CCI), the comorbidity of the population was quantified, and grouped according to factors such as gender, age, and the differences between the groups were explored. Combined with the clinical information of patients, the difference characteristics of comorbidity and non-comorbidity population were analyzed. Pearson/Spearman correlation analysis and binary Logistic regression analysis were used to explore the factors affecting the health-related quality of life in patients with OP.@*RESULTS@#Among the 521 OP patients, 121 patients had no comorbidities, and there were 153, 106, 65, and 30 patients with one, two, three, and four comorbidities, respectively, 46 patients with 5 or more kinds of comorbidites. Hypertension was the most common comorbidity in OP patients, accounting for 21.60%;followed by hyperlipidemia, accounting for 13.51%. The most common combination of the two diseases was hypertension plus hyperlipidemia (64 cases, 12.28%). Through the analysis of differences between age groups, it was found that the older patients, showed higher the CCI, and the difference between groups was statistically significant(Z=1.93, P=0.05). There were significant differences in the total EQ-5D score and the dimensions of anxiety and depression between patients with comorbidities (CCI≠0) and non-comorbidities (CCI=0) (Z=-2.67, P=0.01;Z=-2.44, P=0.02). Correlation analysis found that CCI, history of fracture, history of falls, hip bone mineral density T value and parathyroid hormone were all related to the health-related quality of life in OP patients (P<0.05). Binary Logistic regression analysis suggested that the right hip bone mineral density T value (P=0.02), CCI (P=0.01), fracture history (P=0.03) and fall history (P=0.01) were the risk factors that affect the health-related quality of life in OP patients.@*CONCLUSION@#The burden of comorbidities among middle-aged and elderly OP populations in Beijing is relatively heavy, and the health management of such populations should be further strengthened, specifically the combination of multiple comorbidities should be given high priority. Comorbid factors are of great importance for the diagnosis and treatment strategy of OP patients, which could further improve the quality of life.

Analysis on health status and influencing factors of 1353 mercury workers in Xinjiang / 中华劳动卫生职业病杂志

Objective: To investigate the health status of workers exposed to occupational mercury, and to provide the theoretical basis for formulating reasonable health monitoring and targeted protection measures. Methods: In November 2021, 1353 mercury-exposed workers who underwent occupational health examination in a hospital in Xinjiang Uygur Autonomous Region from 2018 to 2021 were collected as research subjects. By analyzing their blood pressure, electrocardiogram, blood routine, liver function and urine β2-microglobulin and urinary mercury in different gender, age, length of service, industry and enterprise scale, and the health status. And the influencing factors of urinary mercury were evaluated. Results: Among 1353 workers exposed to mercury, there were 1002 males (74.1%), the average age was (37.2±9.8) years old, and the length of service was 3.1 (2.0, 8.0) years. The abnormal rates of physical examination, blood pressure, electrocardiogram, blood routine, liver function, urinary β2-microglobulin and urinary mercury were 73.9% (1000/1353), 12.3% (166/1353), 30.2% (408/1353), 59.9% (810/1353), 32.5% (440/1353), 15.2% (205/1353) and 2.2% (30/1353), respectively. The abnormal rates of blood pressure, blood routine, liver function, urinary β2-microglobulin and urinary mercury in male workers were higher than those in female workers (P<0.05). The abnormal rates of workers' blood pressure and physical examination results increased with the increase of age and length of service, while the abnormal rate of electrocardiogram results were opposite (P<0.05). There were statistically significant differences in the abnormal rates of blood pressure, blood routine, urinary β2-microglobulin and physical examination results among workers of different enterprises and different industries (P<0.05). Multivariate logistic regression analysis showed that the workers with age ≥30 years old, microminiature enterprises, abnormal physical examination results and urinary β2-microglobulin were the susceptible population with abnormal urinary mercury (P<0.05) . Conclusion: The occupational health status of mercury workers in Xinjiang Uygur Autonomous Region is not optimistic, and the health monitoring of microminiature enterprises and older workers should be improved to effectively protect the physical and mental health of workers.

Investigation of bronchiectasis in COPD patients from 2016 to 2020 in Qiaokou District of Wuhan and its influencing factors / 公共卫生与预防医学

Objective To analyze the characteristics and influencing factors of bronchiectasis in patients with chronic obstructive pulmonary disease (COPD) in Qiaokou District of Wuhan from 2016 to 2020. Methods The clinical data of 412 COPD patients admitted to Wuhan First Hospital from January 2016 to December 2020 were retrospectively analyzed. Patients were divided into combined group (162 cases) and non-combined group (250 cases) according to whether they were complicated with bronchiectasis by the high-resolution chest CT examination. The differences in basic data, laboratory indexes, and lung function indexes between the two groups of patients were compared. Multivariate logistic regression analysis was used to explore the influencing factors for COPD patients complicated with bronchiectasis from 2016 to 2020 in Qiaokou District of Wuhan. Results The proportion of COPD patients with smoking history, the proportion of pulmonary tuberculosis history, the proportion of producing yellow-white sputum and yellow sputum, and the duration of symptoms in the combined group were significantly higher than those in the non-combined group (P<0.05). The PO2 and albumin levels of patients in the combined group were lower than those in the non-combined group (P<0.05), but the proportion of PCO2, hemoglobin, sputum culture positive, and the proportion of Pseudomonas aeruginosa infection were significantly higher than those in the non-combined group (P<0.05). The values of the FEV1, FVC, FEV1/FVC, and FEV1% pred of patients in the combined group were significantly lower than those in the non-combined group (P<0.05). The results of multivariate logistic regression analysis showed that smoking history (OR=3.39, 95% CI: 2.02-5.56), pulmonary tuberculosis history (OR=3.09 , 95%CI: 1.85-5.16), duration of symptoms (OR=3.48, 95% CI: 1.93-6.29) and Pseudomonas aeruginosa infection (OR=3.76, 95% CI: 1.98-7.15) were the risk factors affecting COPD with bronchiectasis (P<0.05). Conclusion The pulmonary function of COPD patients with bronchiectasis decreased significantly in Qiaokou District of Wuhan from 2016 to 2020. The smoking history, tuberculosis history, duration of symptoms, and Pseudomonas aeruginosa infection are risk factors affecting COPD patients complicated with bronchiectasis.

Factors affecting the risk of non-proliferative diabetic retinopathy among patients with type 2 diabetic mellitus / 预防医学

Objective@#To investigate the factors affecting the development of non-proliferative diabetic retinopathy (NPDR) among patients with type 2 diabetic mellitus (T2DM), so as to provide insights into manangement of NPDR.@*Methods@#T2DM patients without obvious eye discomfort at ages of 18 years and older admitted to Department of Endocrinology, Jining No. 1 People's Hospital during the period from December 2019 to May 2021 were enrolled. Participants' demographics, smoking, alcohol consumption, medical history of diabetes and use of medicines were collected, and the height, weight and blood pressure were measured. The levels of glycosylated hemoglobin (HbA1c), fasting blood glucose, blood C-peptide, lipid and creatinine were tested, and retinopathy was examined with a non-mydriatic fundus camera. The factors affecting the development of NPDR were identified among T2DM patients using a multivariable logistic regression model.@*Results@#A total of 486 T2DM patients were enrolled, including 354 men (72.84%), with a median age of 48.00 (15.25) years, and median diabetes duration of 35.00 (104.25) months. The prevalence of NPDR was 19.34% among the participants. multivariable logistic regression analysis identified an educational level of senior high school and above (OR=0.546, 95%CI: 0.325-0.918), duration of diabetes (OR=1.008, 95%CI: 1.005-1.012), HbA1c (OR=1.183, 95%CI: 1.034-1.354) and use of non-sulfonylurea insulin secretagogues (OR=1.859, 95%CI: 1.082-3.196) as factors affecting the risk of NPDR among T2DM patients.@*Conclusion@#A high risk of NPDR is found among T2DM patients with a low educational level, long duration of diabetes, poor HbA1c control and use of non-sulfonylurea insulin secretagogues.

Influencing factors of conversion from robot-assisted partial nephrectomy to radical nephrectomy / 现代泌尿外科杂志

【Objective】 To explore the influencing factors of planned robot-assisted partial nephrectomy (RAPN) converted to radical nephrectomy (RN). 【Methods】 Clinical data and operation records of 488 patients planned for RAPN in our hospital during 2015 and 2020 were retrospectively collected. The patients were divided into converted and unconverted groups, and relevant clinical data of the two groups were compared. The causes and influencing factors for conversion were analyzed. 【Results】 Among the 488 patients, 14 (2.9%) converted to RN. The causes included: ①complicated tumor anatomy and surgical difficulties; ②local advanced renal tumor suspected during operation; ③severe intraoperative hemorrhage. Univariate analysis showed that R. E. N. A. L score (P<0.001), E value (P<0.001), N value (P<0.001), L value (P<0.001), renal hilum position (P<0.001) and T stage (P=0.002) were influencing factors of conversion. 【Conclusion】 Causes for the conversion of RAPN to RN include complicated tumor anatomy, suspected local advanced renal tumor and severe intraoperative hemorrhage. The R. E. N. A. L score, E value, N value, L value, renal hilum position and T stage are influencing factors.

Clinical efficacy of flexible ureteroscopic lithotripsy under local anesthesia and risk factors of perioperative pain / 现代泌尿外科杂志

【Objective】 To explore the efficacy of flexible ureteroscopic lithotripsy (FURL) under local anesthesia (LA) in the treatment of upper urinary tract calculi, and to analyze the risk factors of pain. 【Methods】 Clinical data of 255 patients treated during Apr.2022 and Sep.2022 were reviewed, including visual analogue score (VAS) of pain during ureteroscopy, sheath placement, holmium laser lithotripsy, 1 hour and 8 hours after operation. VAS ≥5 was defined as significant pain. Clinical and follow-up data of the significant pain group and non-significant pain group were analyzed with logistic regression to analyze the risk factors of pain in FURL under LA. 【Results】 Altogether 198 patients (77.6%) successfully completed the operation, and the stone-free rate (SFR) was 89.9% (178/198). The VAS of ureteroscopy was the highest (4.49±1.08), and 73 patients (28.6%) experienced significant pain. Univariate analysis showed that significant pain was associated with gender, previous surgical history, age, body mass index (BMI), education level, and ASA classification (P<0.05). Multivariate analysis showed that male (OR=2.896, 95%CI:1.413-5.933, P=0.040) and BMI≥28 (OR=7.776, 95%CI:2.268-26.657, P=0.001) were independent risk factors of significant pain, while age ≥65 years (OR=0.237, 95%CI:0.083-0.672, P=0.007) and previous surgical history (OR=0.156, 95%CI:0.032-0.754, P=0.021) were the protective factors. 【Conclusion】 It is feasible and effective to treat upper urinary tract calculi with FURL under LA. The presence of significant pain is associated with factors such as gender, age, BMI and previous surgical history.

Establishment of a nomogram model for predicting the risk of postpartum stress urinary incontinence based on pelvic floor ultrasound and clinical data / 现代泌尿外科杂志

【Objective】 To analyze the risk factors of postpartum stress urinary incontinence (SUI) and to establish a nomogram model. 【Methods】 A total of 278 puerpera who gave birth at our hospital during Dec.2018 and Aug.2020 were selected as the modeling group, and 132 puerpera who gave birth during Sep.2020 and Sep.2021 were involved in the verification group. Factors affecting postpartum SUI were identified with univariate and multivariate logistic regression, and a nomogram prediction model was constructed with R software. The predictive effectiveness and discrimination of the model were assessed, and the decision curve analysis (DCA) was drawn to evaluate the clinical application value of the model. 【Results】 A total of 84 cases (30.22%) in the modeling group developed SUI 2 months after delivery. Fetal weight, delivery method, maternal age, mobility (Δhy) and rotation Angle (Δβ) were factors affecting postpartum SUI (P<0.05). Multivariate logistic regression analysis showed that increased fetal weight, normal delivery, increased Δhy, and increased Δβ were independent risk factors of postpartum SUI (P<0.05). The constructed nomogram fitted well. The H-L fit curve of the modeling group and verification group were (χ2=7.514, P=0.312) and (χ2=6.157, P=0.267), respectively. The area under the receiver operating characteristic curve of the modeling group and verification group were 0.815 and 0.760, respectively, indicating high specificity and consistency. DCA indicated that when the high-risk threshold probability of the model was between 0.06-0.80, the nomogram model had a high clinical value. 【Conclusion】 Increased fetal weight, normal delivery, increased Δhy and elevated Δβ are independent risk factors that affect postpartum SUI. The nomogram model constructed has good predictive effectiveness and discrimination, and high clinical application value.

Influencing factors of metabolic syndrome in community patients with schizophrenia / 四川精神卫生

BackgroundPatients with schizophrenia are at high risk of suffering from metabolic syndrome. Most previous studies on the influencing factors of metabolic syndrome focused on the inpatients and limited ones on patients dwelling in community. ObjectiveTo explore the influencing factors at different risk levels of metabolic syndrome in community-dwelling patients with schizophrenia in Guangzhou， so as to provide references for future interventions on metabolic syndrome in this patient population. MethodsIn November 2021， 3 339 patients with schizophrenia who were registered in and administered by Guangzhou Mental Health Information System were included. All these patients had finished the physical examination in 2020， and whether they had metabolic syndrome was assessed basing on Guideline for the prevention and treatment of type 2 diabetes mellitus in China （2020 edition）. Patients were divided into high-risk group （n=423）， critical group （n=1 524） and metabolic syndrome group （n=1 392） according to the Chinese expert consensus on the management of metabolic syndrome in patients with schizophrenia. Multiple logistic regression analysis were performed on the risk factors of metabolic syndrome in community-dwelling patients with schizophrenia. ResultsThe prevalence rate of metabolic syndrome in community-dwelling patients with schizophrenia was 41.69%. Univariate analysis showed that the results in gender （χ2=44.610）， age （χ2=55.992）， marriage status （χ2=30.755）， illness course （χ2=25.913） and body mass index （χ2=829.265） were significantly different among the three groups （P<0.01）. Kruskal-Wallis H test showed that the levels of waist circumference （H=920.331）， systolic blood pressure （H=436.673）， diastolic blood pressure （H=393.337）， fasting blood glucose （H=807.304）， triglyceride （H=1 134.125） and high-density lipoprotein cholesterol （H=593.615） among the three groups were significantly different （P<0.01）. Logistic regression analysis showed that age ≥50 （OR=1.761， 95% CI： 1.087~2.853）， overweight （OR=2.418， 95% CI： 1.862~3.140） and obesity （OR=57.903， 95% CI： 14.340~233.802） were risk factors contributing to high-risk patients becoming critical population （P<0.05 or 0.01）. Female gender （OR=1.295， 95% CI： 1.034~1.622）， aged 40~49 （OR=2.597， 95% CI： 1.582~4.263）， age ≥50 （OR=4.392， 95% CI： 2.609~7.395）， overweight （OR=7.844， 95% CI： 6.018~10.223） and obesity （OR=426.785， 95% CI： 105.724~1 722.839） were risk factors for high-risk patients developing into metabolic syndrome population （P<0.05 or 0.01）. ConclusionThe prevalence rate of metabolic syndrome is higher in community-dwelling patients with schizophrenia. Female gender， older age， overweight and obesity would increase the risk of metabolic syndrome in schizophrenic patients. ［Funded by Health Science and Technology Project in Guangzhou （number， 20221A010028）］

Analysis of influencing factors for multidrug-resistant pulmonary tuberculosis in Hainan Province from 2014 to 2020 / 中国热带医学

@#Abstract: Objective To investigate the occurrence of multidrug-resistance among tuberculosis patients in Hainan Province from 2014 to 2020 and to analyze the influencing factors, aiming to provide reference for formulating drug-resistant tuberculosis control strategies in this region. Methods This study collected sputum samples from the patients with pulmonary tuberculosis admitted to the Second Affiliated Hospital of Hainan Medical University from 2014 to 2020, and performed isolation and identification of Mycobacterium tuberculosis and drug susceptibility testing. After the strains were identified as positive, drug sensitivity tests were conducted, and multi-drug resistant patients were found. Clinical data was retrospectively collected, and chi-square test and unconditioned logistic regression were used to analyze the influencing factors of multidrug resistance. Results A total of 2 672 patients underwent sputum culture, strain identification, and drug susceptibility testing in TB designated hospitals in Hainan Province from January 1, 2014 to December 31, 2020. Among them, 1 942 patients with available drug susceptibility test results and complete clinical data were enrolled, among which 398 cases with drug-resistant TB were included in the case group, and 1 544 cases without drug resistance were included in the control group. Multivariate logistic regression analysis showed that farmers, rural residence, treatment history of retreatment, irregular medication history, number of pulmonary cavities ≥3, and BMI<18.5 were independent risk factors for MDR-TB. The risk of MDR-TB in farmers was higher than that in non-farmers (OR=1.542, 95%CI: 1.150-2.020); patients living in rural areas had a higher risk of multidrug resistance than those living in urban areas (OR=1.445, 95%CI: 1.095-1.907); the risk of MDR in the retreatment patients was higher than that in the initial treatment patients (OR=5.616, 95%CI: 4.250-7.421); the risk of multi-drug resistance in patients with irregular medication was higher than that in patients with regular medication (OR=2.665, 95%CI: 2.012-3.531); the risk of multidrug resistance in patients with pulmonary cavity number ≥3 was higher than that in patients with pulmonary cavity number <3 (OR=5.040, 95%CI: 3.768-6.740); compared with patients with BMI<18.5, patients with BMI=18.5-24.0 and BMI≥24.0 had a lower risk of multidrug resistance (OR=0.735, 95%CI: 0.555-0.975 and OR=0.447，95%CI:0.225-0.888, respectively). Conclusions Retreatment, farmer occupation, rural residence, irregular medication and low BMI may be the risk factors for multidrug resistance in Hainan Province.

Influencing factors of red blood cell transfusion volume for premature neonatal pneumonia and its predictive value for feeding intolerance / 中国输血杂志

【Objective】 To investigate the influencing factors of red blood cell transfusion volume for premature neonatal pneumonia and its predictive value for feeding intolerance. 【Methods】 272 infants of premature neonatal pneumonia treated with red blood cell transfusion were collected as the research objects. Red blood cell transfusion volume was investigated and its influencing factors were analyzed by multiple linear regression. Receiver operating curve (ROC) was used to analyze the predictive value of red blood cell transfusion volume on feeding intolerance in infants with premature neonatal pneumonia. 【Results】 The average red blood cell transfusion volume in infants with premature neonatal pneumonia was (76.19±26.03) mL. Multiple linear regression analysis showed that gestational age, birth weight, volume of blood collection and hemoglobin level before blood transfusion were influencing factors of red blood cell transfusion volume in infants with premature neonatal pneumonia (B=-1.930, -6.215, 1.041, -0.249, P<0.05). The incidence of feeding intolerance in infants with premature neonatal pneumonia was 19.5%. The transfusion volume of feeding intolerance group was significantly higher than that of the non-feeding intolerance group(P<0.05). ROC analysis showed that the area under curve (AUC) of red blood cell transfusion volume for predicting feeding intolerance was 0.755. 【Conclusion】 Gestational age, birth weight, volume of blood collection and hemoglobin level before blood transfusion are influencing factors of red blood cell transfusion volume in infants with premature neonatal pneumonia. The incidence of feeding intolerance in premature neonatal pneumonia is high. The red blood cell infusion volume is of good predictive value for the occurrence of feeding intolerance. Latrogenic blood loss and red blood cell transfusion volume should be minimized clinically.

Survey on the willingness to re-donate blood and its influencing factors of street blood donors / 中国输血杂志

【Objective】 To investigate the re-donation willingness and its influencing factors of street blood donrs, so as to stable the team of blood donors and enhance the efficiency of blood collection. 【Methods】 From July 2021 to December 2022, 1 210 blood donors were randomly selected from 5 street blood donation sites affiliated to Nantong Central Blood Station, and their willingness to re-donate blood and influencing factors were surveyed via telephone interviews within 24 hours and 2 to 3 weeks after blood donation. The frequency and type of adverse donation reactions (ADRs) was gathered. 【Results】 Among 1 210 street blood donors, 590 were first-time blood donors, accounting for 48.76% (590/1 210), and 620 were repeated blood donors, accounting for 51.24% (620/1 210). The response rate of this survey was 96.03% (1 162/1 210), and the incidence of delayed ADRs was 1.29% (15/1 162) according to telephone interviews after blood donation. Among the 620 repeated blood donors, "health promotion" (61.77%, 383/620) was the most important reason for willingness of redonation(P<0.05), and the top of the list for on-site experience was "blood donation locations" (56.61%, 351/620) (P< 0.05). 【Conclusion】 The intention of blood donors, location of blood donation sites, service and publicity of blood donation are the main factors that affect the re-donation of blood donors. It's vital to increase the proportion of blood re-donation, and promote the development of voluntary blood donation by improving blood donation service, policy popularization and incentive measures.

Analysis of factors affecting length of hospital stay after Sun's procedure in patients with type A aortic coarctation based on LASSO regression / 中国输血杂志

【Objective】 To investigate the factors affecting the length of hospitalization after the Sun's procedure in patients with type A aortic coarctation. 【Methods】 From January 2018 to June 2023, the clinical data, related laboratory indicators and perioperative blood transfusion data of patients with type A aortic dissection who underwent Sun's procedure in the First Hospital of Lanzhou University were collected. LASSO regression was used to screen the characteristics related to the length of hospital stay, and linear regression analysis was used to determine the risk factors for prolonged length of hospital stay. 【Results】 The statistical analysis of 242 patients showed that the amount of red blood cell transfusion, plasma transfusion, platelet transfusion and autologous blood transfusion were the influencing factors of the length of hospital stay in patients with type A aortic dissection after operation. The total sum of squared deviations of the linear regression equation fitting the total length of hospital stay was statistically significant (F= 10.504, P<0.001). 【Conclusion】 Perioperative red blood cell transfusion,plasma transfusion,platelet transfusion and autologous blood transfusion are risk factors for prolonged postoperative hospitalization in patients undergoing the Sun's procedure for type A aortic coarctation. Control of operation time and reduction of intraoperative blood loss may help to prevent prolonged postoperative hospital stay and other adverse conditions.

Downward referral willingness of rehabilitation patients in an urban medical group and its influencing factors / 中国康复理论与实践

ObjectiveTo investigate the willingness of rehabilitation patients within an urban medical group to accept downward referrals and analyze the influencing factors. MethodsFrom June to October, 2023, a survey was conducted using a simple random sampling method among neurological and orthopedic rehabilitation patients in hospitals within a specific urban medical group. The 2013 version of the Andersen Model was employed to construct a theoretical framework for the willingness of rehabilitation patients to accept downward referrals and influencing factors. Within this framework, a questionnaire was designed using a 5-point Likert scale, comprising three sections including personal characteristics, environmental features and healthcare service utilization choices, totaling 23 questions. A preliminary survey was conducted, and the questionnaire had underwent reliability and validity testing. ResultsA total of 350 questionnaires were collected, with 314 valid questionnaires. The willingness of rehabilitation patients to accept downward referrals was found to be associated with age, rehabilitation specialties, rehabilitation phases, previous experiences with downward referrals, awareness of and perceptions regarding bidirectional referral policies, and understanding and opinions about the urban medical group (χ2 > 7.755, P < 0.05). The primary influencing factors were rehabilitation specialties, rehabilitation phases, previous experiences with downward referrals and perceptions of the necessity of bidirectional referral policies (P < 0.05). ConclusionRehabilitation specialties, rehabilitation phases, previous experiences with downward referrals and perceptions of the necessity of bidirectional referral policies are the primary factors that influenced the willingness of rehabilitation patients to accept downward referrals. We should formulate targeted and focused improvement measures based on the specific circumstances and key influencing factors of rehabilitation patients within the urban medical group regarding their willingness to accept downward referrals. Continuously enhancing the proportion of patients willingness to accept downward referrals is essential for the effective implementation of bidirectional referral for rehabilitation patients.

Factors influencing hemolysis rate of leukocyte-reduced red blood cells at the end of preservation period in blood donors / 中国输血杂志

【Objective】 To compare the current standards and explore the influencing factors for hemolysis rate of leukocyte-reduced red blood cells at the end of the preservation period, in order to formulate reasonable internal control indicators. 【Methods】 A retrospective analysis was performed on hemolysis rate of 427 samples of leukocyte-reduced red blood cells at the end of the preservation period in Nanning Blood Center from 2015 to 2022. Compared with the current standard for hemolysis rate at the end of the preservation period (GB 18469-2012 Quality Requirements for Whole Blood and Component Blood), the differences were analyzed, and the factors influncing the hemolysis rate were analyzed in terms of different blood donor groups. 【Results】 1) Among the 427 samples, the hemolysis rate of 418 (97.89%) did not exceed 0.4%, all lower than 0.8%; 2)the hemolysis rate of the male group was higher than that of the female group; 3) the hemolysis rate of the 18-29 years old group was lower than that of the 30-39 year old group and the 40-60 year old group, with statistically significant difference; 4) in terms of occupation, the hemolysis rate of students was the lowest, and the differences between groups were statistically significant; 5) no statistical significance was found in ethnicity and blood type. 【Conclusion】 Statistics indicated that gender, age, blood donation volume and occupation of blood donors were the influencing factors of hemolysis rate. The current standard is obviously higher in the qualified range of blood quality control in Nanning. It is advisable to formulate a reasonable quality control strategy with internal control index of hemolysis rate set <0.4%, which is conducive to making accurate evaluation of internal quality control and ensuring blood safety.

Analyzing the occupational health literacy and its influencing factors among occupational populations in Guizhou Province, 2022 / 中国职业医学

Objective To analyze the awareness of occupational health literacy (OHL) and its influencing factors among occupational population in key industries of Guizhou Province in 2022. Methods A total of 11 153 workers from eight key industries in 88 counties and districts of Guizhou Province was selected as the research subjects in 2022 using a stratified cluster sampling method. The OHL levels were surveyed using the Occupational Health Literacy Questionnaire of National Key Populations. Results The overall OHL level of the research subjects in 2022 was 57.7%. The OHL levels of basic knowledge of occupational health protection, healthy lifestyle and behavior, legal knowledge of occupational health, and basic skills of occupational health protection were 79.6%, 69.7%, 60.0%, and 42.0%, respectively. The overall OHL level of the tertiary industry population was higher than that of the secondary industry (59.8% vs 54.9%, P<0.01). The overall OHL levels of occupational population in the eight key industries from high to low were medical and health, electric heating water supply, environmental health, transportation, non-metallic mineral products, express delivery/take-out,education and coal mining, with the overall OHL level of 82.5%, 64.2%, 64.0%, 55.9%, 52.8%, 48.8%, 46.1% and 44.7%, respectively (P<0.01). The results of logistic regression analysis showed that gender, age, ethnicity, marital status, educational level, personal monthly income, length of employment, and industry category were independent influencing factors of OHL levels (all P<0.05). The OHL level of females was higher than that of males (P<0.01). The older age, higher educational level, and higher personal monthly income were associated with higher OHL levels in workers (all P<0.01). The OHL level of Han population was higher than that of Miao and other ethnic groups (all P<0.01). The OHL level of unmarried population was higher than that of married and widowed/divorced population (all P<0.01). The OHL level of workers with less than 3.0 years of employment was lower than that of workers with 3.0 - < 6.0 and 6.0 - < 10.0 years of employment (all P<0.01). The OHL level of workers in the tertiary industry was higher than that in the secondary industry (P<0.01). Conclusion The OHL level of occupational population in Guizhou Province needs to be further improved. Special attention should be paid to the industry of coal mining and selection, education, express delivery/take-out, and occupational population in ethnic minority areas, low educated, low-income, and newly employed occupational population.

Analysis on influencing factors on occupational stress of medical staff during major public health emergencies / 中国职业医学

Objective To analyze the current status and influencing factors of occupational stress among medical staff during major public health emergencies. Methods A total of 491 medical staff in Guangzhou City was selected as the research subjects using a convenient sampling method. The Job Content Questionnaire and Effort-Reward Imbalance Questionnaire were used to evaluate the occupational stress level in the job demand-control (JDC) and effort-reward imbalance (ERI) models among the staff. Results Among the research subjects, the detection rates of occupational stress in JDC and ERI models were 50.1% and 52.5%, respectively. There was no significant difference in the detection rates of occupational stress between the two models (P>0.05). The result of multivariate logistic regression analysis showed that individuals with lower monthly income and longer weekly working hours had a higher risk of occupational stress in both JDC and ERI models (all P<0.05). Staff with night shift, daily sleep time less than six hours, and dissatisfaction with the protective measures provided by the hospital had higher risk of occupational stress than those with no night shift, daily sleep time at least six hours, and satisfaction with the protective measures provided by the work place in JDC and ERI models (all P<0.01). The risk of ERI model occupational stress of personnel who had been exposed to COVID-19 cases or suspected cases was higher than that in those who had not been exposed (P<0.05). Conclusion Medical staff experience a certain level of occupational stress, characterized by both JDC and ERI models, during major public health emergencies. The main influencing factors included personal monthly income, weekly working hours, night shift, sleep time, satisfaction with protective measures and occupational exposure.