Background Health literacy is closely related to mental health, and improving health literacy has been shown to promote mental well-being. However, whether occupational stress among workers in mining and manufacturing is associated with their occupational health literacy remains inconclusive. Objective To study the levels of occupational health literacy and occupational stress among workers in three industrial sectors (metal ores mining, metal smelting, and manufacture of non-metallic mineral products) in Gansu Province, and to analyze the correlation between them. Methods Between May and December 2024, a stratified cluster random sampling method was employed to survey workers from 73 large, medium, and small and micro sized enterprises across the aforementioned industries in Gansu Province. Participants’ occupational health literacy and occupational stress levels were assessed. The LASSO regression model was applied to identifykey factors influencing occupational stress, and subsequently a multilevel random intercept mixed-effects logistic model was used to study factors influencing occupational stress and to explore the relationship between occupational health literacy and occupational stress. Results A total of 3611 workers across the three industries were surveyed, among whom 1031 (28.55%) experienced occupational stress. Workers with adequate occupational health literacy—whether assessed in terms of overall literacy or specific dimensions—demonstrated a significantly lower prevalence of occupational stress compared to those without adequate literacy (P<0.05). Through the LASSO regression analysis, it was found that the factors closely related to occupational stress were dimension one (occupational health legal knowledge), dimension two (basic knowledge of occupational health protection), and dimension four (healthy working methods and behaviors) of occupational health literacy, gender, average monthly income, and night shifts. The results from the three-level random intercept mixed-effects logistic regression model indicated that dimensions one (OR=0.69, 95%CI: 0.58, 0.82), two (OR=0.71, 95%CI: 0.58, 0.87), and four (OR=0.81, 95%CI: 0.67, 0.98) of occupational health literacy were negatively correlated with the risk of occupational stress. Workers with an average monthly income of 3001–≤5000, 5001–≤7000, and ≥7001 yuan reported occupational stress risks that were 61% (OR=0.61, 95%CI: 0.45, 0.81), 56% (OR=0.56, 95%CI: 0.41, 0.78), and 36% (OR=0.36, 95%CI: 0.24, 0.53) of those with an average monthly income ≤3000 yuan, respectively. Male workers (OR=1.66, 95%CI: 1.32, 2.10) and those on night shifts (OR=2.29, 95%CI: 1.90, 2.76) had a higher risk of occupational stress. The random effects variance showed that the intraclass correlation coefficient was 0.12. Conclusion There is a negative correlation between occupational stress and occupational health literacy among workers in mining and manufacturing. Being male, having a low income, and working night shifts are risk factors affecting workers' occupational stress. It is recommended to focus on these groups of workers and incorporate occupational health literacy into workplace mental health promotion.

Objective To explore the distribution of circuit-qi indicators at birth in the patients with chronic atrophic gastritis(CAG)based on five-circuit and six-qitheory,and to summarize their congenital circuit-qi endowment features,so as to explore treatment strategies for CAG accordingly.Methods From January 2018 to December 2023,a total of 2 046 cases of patients with CAG admitted to Shenzhen Bao'an Traditional Chinese Medicine Hospital Affiliated to Guangzhou University of Chinese Medicine(i.e.,Shenzhen Bao'an Traditional Chinese Medicine Hospital)were selected,and the distribution of the five-circuit and six-qiindicators at birth in the patients was analyzed by using the SPSS 24.0 statistical software.The features of the congenital circuit-qi endowment were summarized,and then the corresponding treatment strategies were put forward.Results The CAG patients had the highest proportions of circuit-qiendowment features at birth,showing as the yearly circuit being deficiency fire circuit,the dominant circuit being metal circuit,the dominant qibeing yangmingdryness-gold,the guest qibeing taiyangcold-water,and sitianbeing shaoyangminister fire and zaiquanbeing j ueyinwind-wood,and the differences in the distribution of the dominant circuit,dominant qi,and guest qiwere statistically significant(P<0.05 or P<0.01),but differences in the distribution of the yearly circuit and sitian/zaiquanwere not statistically significant(P>0.05).The analysis of the combined circuit-qifeatures at birth showed that the proportion of patients with CAG born in the year of celestial restriction,mildly-rebellious year and disharmony year was the highest,and the proportion of those born in the convergent year and iso-convergent year was the lowest,with statistically significant differences(P<0.05).Conclusion The congenital circuit-qiendowment of patients with CAG is characterized by liver depression and qistagnation,dryness and coldness.Therefore,the treatment for CAG should be from the perspective of the liver,with the method of soothing liver and harmonizing stomach,supplemented by nourishing yin to moisten dryness,and protecting yang qiof the spleen and stomach.The combined use of acup-moxibustion and Chinese medicines is recommended.

OBJECTIVE: To investigate the effectiveness of digital three-dimensional (3D) printing osteotomy guide plate assisted total knee arthroplasty (TKA) in treatment of knee osteoarthritis (KOA) patients with femoral internal implants. METHODS: The clinical data of 55 KOA patients who met the selection criteria between July 2021 and October 2023 were retrospectively analyzed. Among them, 26 cases combined with femoral implants were treated with digital 3D printing osteotomy guide plate assisted TKA (guide plate group), and 29 cases were treated with conventional TKA (control group). There was no significant difference in gender, age, body mass index, side, Kellgren-Lawrence classification, preoperative visual analogue scale (VAS) score, Hospital for Special Surgery (HSS) knee score, knee range of motion, and other baseline data between the two groups ( P>0.05). The operation time, intraoperative blood loss, incision length, postoperative first ambulation time, surgical complications; VAS score, knee HSS score, knee range of motion before operation, at 1 week and 3 months after operation, and at last follow-up; distal femoral lateral angle, proximal tibial medial angle, hip-knee-ankle angle and other imaging indicators at last follow-up were recorded and compared between the two groups. RESULTS: The operation time, incision length, intraoperative blood loss, and postoperative first ambulation time in the guide plate group were significantly lower than those in the control group ( P<0.05). In the control group, there were 1 case of incision rupture and bleeding and 1 case of lower limb intermuscular venous thrombosis, which was cured after symptomatic treatment. There was no complication such as neurovascular injury, incision infection, or knee prosthesis loosening in both groups. Patients in both groups were followed up 12-26 months, with an average of 16.25 months. The VAS score, HSS score, and knee range of motion improved at each time point after operation in both groups, and further improved with time after operation, the differences were significant ( P<0.05). The above indicators in the guide plate group were significantly better than those in the control group at 1 week and 3 months after operation ( P<0.05), and there was no significant difference between the two groups at last follow-up ( P>0.05). At last follow-up, the distal femoral lateral angle, the proximal tibial medial angle, and the hip-knee-ankle angle in the guide plate group were significantly better than those in the control group ( P<0.05). CONCLUSION The application of digital 3D printing osteotomy guide plate assisted TKA in the treatment of KOA patients with femoral implants can simplify the surgical procedures, overcome limitations of conventional osteotomy guides, reduce surgical trauma, achieve individualized and precise osteotomy, and effectively restore lower limb alignment and knee joint function.
Humans ; Arthroplasty, Replacement, Knee/instrumentation* ; Osteoarthritis, Knee/surgery* ; Osteotomy/instrumentation* ; Male ; Retrospective Studies ; Female ; Printing, Three-Dimensional ; Femur/surgery* ; Middle Aged ; Bone Plates ; Range of Motion, Articular ; Aged ; Treatment Outcome ; Surgery, Computer-Assisted/methods* ; Knee Prosthesis ; Knee Joint/surgery* ; Operative Time

Objective:To explore the influence of chronic rhinitis on depressive symptoms of college freshmen and the mediating effect of avoidant personality.Methods:A cluster sampling method was used to survey 8 079 college freshmen from April 2018 to October 2018 using the Beck depression inventory and the avoidant personality diagnosis questionnaire based on DSM-Ⅳ.SPSS 25.0 software was used for descriptive statistics and Spearman correlation analysis, and the macro program PROCESS version 3.3 was used for the mediating effect.Results:(1) The detection rates of chronic rhinitis, avoidant personality and depressive symptoms were 22.90% (1 850/8 079), 19.22% (1 553/8 079) and 6.28% (507/8 079). The scores for avoidant personality disorder and depressive symptoms were 1.00 (0, 3.00) and 1.00 (0, 4.00), respectively. (2) The chronic rhinitis, avoidant personality and depressive symptoms were positively correlated ( rchronic rhinitis-avoidant personality=0.094, rchronic rhinitis-depressive symptoms=0.095, ravoidant personality-depressive symptoms=0.416, all P<0.001). (3) Chronic rhinitis could positively predict depressive symptoms ( β=1.113, P<0.001). (4) Avoidant personality played a mediating role between chronic rhinitis and depressive symptoms ( β=1.094, P<0.001), and accounted for 44.92%(0.500/1.113) of the total effect. Conclusion:Chronic rhinitis directly affect the depressive symptoms of college freshmen, and indirectly affect the depressive symptoms of college freshmen through the mediating role of avoidant personality.

Objective To evaluate the efficacy of ultrasound-prepositioned four-point method for right internal jugular vein ( IJV) catheterization in the parturients at high risk of bleeding. Methods Eighty American Society of Anesthesiologists physical status Ⅰ or Ⅱparturients diagnosed as having perni-cious placenta previa, aged 25-38 yr, weighing 60-90 kg, scheduled for elective cesarean section under general anesthesia, were divided into 2 groups ( n=40 each) using a random number table method: real-time ultrasonic guidance group ( group UG ) and ultrasound-prepositioned four-point method group ( group UF) . In group UG, the right IJV catheterization was performed under real-time ultrasound guidance: mov-ing the ultrasonic probe to make the mid-line of the cross section image of the right IJV overlap with the mid-line of the ultrasonic display screen, and the intersection of the mid-line of the IJV and the horizontal line of the annular cartilage was selected as the puncture point. In group UF, the right IJV catheterization was per-formed by using ultrasound-prepositioned four-point method as follows: moving the ultrasonic probe to make the midline of the right IJV cross-sectional images overlap with the midline of the ultrasound display screen, and marking the skin where the midpoint of the probe's long-axis was located as point A;transversely mov-ing the probe to the inside so that the tangent line of its inner edge overlapped with the midline of the ultra-sonic display screen, marking the skin where the midpoint of the probe's long-axis was located as point B ( the puncture site);at the proximal cardiac end of the right IJV, making point C at 2 cm from point B, and making point D ( the indicator point, direction of the puncture needle) at 2 cm from point A. After lo-cal infiltration anesthesia was performed in point B, the puncture needle was inserted towards the point D. The success rate of puncture, success rate of catheterization, catheterization operation time and complica-tions such as hematoma, intravascular catheter insertion or hemopneumothorax were recorded. Results The success rate of total catheterization was 100％ in two groups. Compared with group UG, the catheteriza-tion operation time was significantly shortened ( P<0. 01) , and no significant change was found in the suc-cess rate of puncture at first attempt, success rate of catheterization at first attempt or intravascular catheter insertion in group UF ( P>0. 05) . Conclusion Compared with real-time ultrasound guidance, ultrasound-prepositioned four-point method produces better efficacy when used for the right IJV catheterization in the parturients at high risk of bleeding.

Objective To determine the risk factors for autologous blood withdrawal-reinfusion in cesarean section. Methods Parturients who underwent cesarean section and autologous blood withdrawal from August 2012 to June 2015 in our hospital were selected. The preoperative, intraoperative and postop-erative data of the parturients were collected retrospectively from electronic medical records. The parturients were divided into reinfusion group and non-reinfusion group according to whether the parturients received au-tologous blood reinfusion. Logistic regression analysis was used to stratify the risk factors for autologous blood withdrawal-reinfusion in cesarean section. Results A total of 1604 parturients who received autolo-gous blood reinfusion were included in the study, with 757 cases in reinfusion group and 847 cases in non-reinfusion group. Placenta increta∕percreta, placenta previa with previous uterine surgery and complete pla-centa previa were the risk factors for autologous blood withdrawal-reinfusion in cesarean section (P<0. 05). The predictive model was exp( w) ÷ [1 + exp( w)],w = 1. 447 × placenta increta∕percreta ( corrected OR value)+0. 945×complete placenta previa (corrected OR value)+1. 361×placenta previa with previous uter-ine surgery (corrected OR value). The sensitivity and specificity of this model in predicting blood reinfusion were 56％ and 79％, respectively, the positive predictive value was 71％, and the negative predictive val-ue was 67％. Conclusion Placenta increta∕percreta, placenta previa with previous uterine surgery and complete placenta previa are high risk factors for autologous blood withdrawal-reinfusion in cesarean section, and routine preparation for autologous blood withdrawal-reinfusion is recommended.

Intraoperative cell salvage ( IOCS) was conducted during cesarean delivery from May 2011 to April 2016 in our hospital: when the volume of autologous blood collected from the surgical field≥800 ml during surgery and the parturients′hemoglobin≤100 g∕L after hemorrhage, the autologous blood was centrifuged, concentrated, washed and then filtered using a leucocyte depletion filter before reinfusion. IOCS was carried out in 1 085 cases during cesarean delivery within 5 yr. For the parturients who underwent IOCS, the percentage of patients who did not require transfusion of allogeneic red blood cells was 82.95%(900 cases), the percentage of patients who required plasma transfusion was 41.66% (452 cases), the percentage of patients who required platelet transfusion was 3.32% (36 cases), and no autologous blood transfusion?related adverse reactions were found during surgery and hospital stay. In conclusion, IOCS could be safely and effectively used for blood?saving effect in cesarean delivery.

Objective To evaluate the capacity of reverse dot blot(RDB)technique in screening Human papillomavirus infection in cervix.Methods 49 cases examined by hybrid capture 2(HC2)were collected for RDB technique testing.Results In the 49 cases,the positive of HR-HPV examined by HC2 was 89.8%(44/49),53.1%(26/49)by RDB,respectively.Sensitivity,specificity of RDB technique was 59.1%,100(5/5),conordance rate was 63.3%(31/49),positive predictive value and negative predictive value of RDB was 100%,21.7%,respectivdy.Kappa=0.23.Conclusion It is superior in the economy for screening human papillomavirus infection in cervix that RDB technique is developed and optimized,cheap RDB technique should be substituted for expensive HC2.

Insulin is secreted in a pulsatile fashion, consisting of ultradian oscillation and rapid pulses. Several aspects of these characteristic features, generating mechanism, and clinical significance are reviewed in this article.