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  • Zhi-yuan GUO, Yuan-jie CUI, Qian-wei ZHANG, Lin-xing ZHOU, Ruo-chen WANG, Qin ZHUO, Ming LI
    Modern Preventive Medicine. 2024, 51(22): 4076-4079.
    Objective

    To investigate the daily dietary nutrient intake and energy expenditure of university students in Sichuan, in order to understand the levels of dietary nutrient intake and physical activity among college students. To evaluate the adequacy of the students’ nutritional requirements by analyzing the intake and energy contribution of the three major macronutrients, as well as the daily energy expenditure and its composition from physical activities.

    Methods

    A convenient sample of 200 college students in a university of Sichuan were included in the study. Body mass index (BMI) and body fat ratio (BFR) were measured using a body composition analyzer. A three-day 24-hour dietary recall method was used to investigate dietary intake, while the Bouchard Physical Activity Diary and triaxial accelerometer AntiGraph wGT3X-BT were used to investigate subjects’ physical activity and energy expenditure.

    Results

    The median daily energy intake was 2 237 kcal/d for male students and 1 620 kcal/d for female students. The median daily macronutrient intakes for males were: protein 81 g/d, fat 72 g/d, and carbohydrate 295 g/d,and for females: protein 65 g/d, fat 58 g/d, and carbohydrate 210 g/d. The macronutrient energy ratios were 53∶15∶32 for both genders. The median daily energy expenditure was 473 kcal/d for males and 309 kcal/d for females.

    Conclusion

    Male college students’ daily energy intake and expenditure are significantly higher than females. College students generally show issues of relatively insufficient energy intake, high fat intake, relatively low carbohydrate intake, and insufficient moderate to high-intensity exercise. College students generally lack moderate-to-vigorous physical activity. Students should be encouraged to actively participate in physical activities to promote balanced diets and a healthy lifestyle.

  • Ya LIU, Ying-zhe ZHAO, Shu-ying CHEN, Xiao-lei WANG, Zhi-wei DONG, Li-hong JI, Jing-jie SUN, Qi JING, Jian-hua ZHANG
    Modern Preventive Medicine. 2024, 51(22): 4147-4152.
    Objective

    To explore the current situation and development trend of coupling and coordination of medical resource allocation and service utilization in traditional Chinese medicine hospitals, to clarify the coordinated development relationship between the two, and to provide reference opinions for promoting the benign interaction between the two and achieving balanced development.

    Methods

    From 2017 to 2021, 11 relevant index data of medical resource allocation and service utilization of TCM hospitals in 30 provinces of China were selected, and the comprehensive development index and relative development degree were used to comprehensively evaluate the allocation and service utilization of TCM hospitals, and the coupling coordination method was used to explore the coupling and coordination relationship and development trend of the two systems.

    Results

    From 2017 to 2021, the coupling coordination degree of medical resource allocation and service utilization of TCM hospitals in various regions of China decreased, showing a stepwise decreasing pattern from east to west. There were obvious differences in the comprehensive development level of medical resource allocation of traditional Chinese medicine hospitals among regions, and the lag in medical resource allocation had become a constraint for the coordinated development of the western region. The overall structure of the relative development level had changed from “8-13-9” in 2017 to “8-12-10” in 2021, and only 12 provinces would achieve coordinated development.

    Conclusion

    There is a lot of room for improvement in the coupling and coordination of resource allocation and service utilization of traditional Chinese medicine hospitals in China, and the allocation level of medical resources in traditional Chinese medicine hospitals should be optimized according to local conditions, so as to promote the high-quality development of traditional Chinese medicine hospitals with economy. The improvement strategy of coupling coordination level is dynamically adjusted according to the relative development degree, so as to promote the benign interaction between the two and achieve high-quality coordinated development.

  • Xin-yue CHEN, Li-ming CHEN, Juan-juan WU, Tai-ming DAI
    Modern Preventive Medicine. 2024, 51(22): 4101-4106.
    Objective

    To explore the correlation between adolescents’ self-assessment of oral health and oral examination results assessed according to WHO-recommended standards and to analyze the factors influencing adolescents’ self-assessment of oral health.

    Methods

    A total of 2 146 adolescents aged 12 from 11 districts and counties in Guizhou Province were selected through multi-stage random sampling. Oral health examinations and a questionnaire survey were conducted according to the methods and standards of the Fourth National Oral Health Epidemiological Survey. Kendall correlation analysis was used to compare the correlation between the results of the two evaluation methods. The chi-squared (χ2) test and ordered logistic regression analysis were employed to analyze the factors affecting adolescents’ self-assessment of oral health status.

    Results

    There was a significant correlation between self-rated oral health and oral examination results. Statistical differences were observed in adolescents’ self-rated oral health based on different economic regions, brushing habits, general health evaluations, experiences of dental trauma, toothache, and the number of siblings (P<0.05).

    Conclusion

    Adolescents’ self-assessment of oral health can reflect their actual oral health status. It is recommended to focus on the key factors affecting adolescents’ oral health, promote and popularize proper brushing techniques, and improve the utilization rate of oral health services.

  • Xiu-qiong FENG, Sheng-yu LUO, Ming-yi PENG, Ya-wei GUO, Dan XU
    Modern Preventive Medicine. 2024, 51(22): 4121-4126.
    Objective

    To understand the adverse childhood experiences of middle school students in Huangpu District and the association and gender differences between sleep disorders, and to provide scientific basis for the prevention and control policies of sleep disorders.

    Methods

    A stratified cluster sampling method was used to investigate the adverse childhood experiences (ACEs) of middle school students, evaluate their overall sleep function, and investigate the childhood adverse experiences of 6 middle school students in Huangpu District. The detection rate of sleep disorders in different childhood adverse experiences exposure was compared using a chi square test. A binary logistic regression model was established to analyze the risk and gender differences between exposure to adverse childhood experiences and sleep disorders in middle school students.

    Results

    This study analyzed a total of 6 710 students from 6 high schools in Huangpu District, Guangzhou, with 3 525 males and 3 185 females. The detection rate of sleep disorders was 18.0%. The detection rate of ACEs ranged from 1.3% (substance abuse among family members) to 38.9% (domestic violence). The results of the multivariate binary logistic regression analysis showed that, except for the parental disability dimension, the risk of developing sleep disorders was increased in subjects with ACEs (OR=1.38-4.58). There was a dose-response relationship between the cumulative number of ACEs and the risk of sleep disorders. In addition, the risk intensity between emotional neglect and sleep disorders was significantly higher in girls than in boys, but there was no interaction between gender and the association between other types of ACEs or the cumulative number of ACEs and sleep disorders.

    Conclusion

    There is a significant association between ACEs exposure and sleep disorders among middle school students in Huangpu District, the incidence of sleep disorders in girls is higher than that in boys, and girls who were emotionally neglected during childhood have a higher risk of developing sleep disorders.

  • Xiao-bo TU, Shu-mian MA, Xiao-lei JIN, Yan-yun KUANG, Hui-ling LIU, Na NIU, Fang ZHAO, Jing-zhang LV, Yan-kui LIN
    Modern Preventive Medicine. 2024, 51(22): 4184-4190.
    Objective

    To comprehensively analyze the influencing factors of the blood plate-paper bridge method for H antigen induction and identification, and to investigate its mechanism in order to promote the application of this method in Salmonella serotyping.

    Methods

    The experimental conditions of the blood plate-paper bridge method for Salmonella serotyping were optimized by comparing the effects of different paper bridge materials on the induction and identification of H antigen, scanning the surface of different paper bridge materials by scanning electron microscope to explore the mechanism of the effects, and combining the factors of environmental humidity and saline dosage. The optimized method was compared with the simple plate method of GB 4789.4 standard for serotyping 40 strains of Salmonella.

    Results

    The matte surface of CN110 and CN95 nitrocellulose membranes had similar bridging effect with ordinary filter paper, and the difference was not statistically significant (P>0.05), while the effect of filter membrane was significantly lower than that of ordinary filter paper (P<0.05). Salmonella spread better at higher humidity, and there was a significant difference between the results at 80% humidity compared with those of the 50% and 20% groups (P<0.016 7). The spreading effect was significantly improved with increasing amount of saline (P<0.001), and the optimal amount was 15 μL. Forty foodborne Salmonella strains were identified using the two methods, and the method in this study was able to accurately identify Salmonella serotypes in one go, whereas the simple plate method required one to three inductions.

    Conclusion

    The blood plate-paper bridge method optimized in this study is easy to operate and has a significant induction effect, which is suitable for the identification of Salmonella serotypes. This method can be used as an effective complement to Salmonella serotyping methods to improve the efficiency and accuracy of foodborne disease traceability.

  • Ya-ke LV, Yue-zhang MA, Shao-bai ZHANG, Wei-jun HU
    Modern Preventive Medicine. 2024, 51(22): 4206-4211.
    Objective

    To analyze the characteristics of Adverse Events Following Immunization (AEFI) of domestic rotavirus (live) vaccine (RVVO) in Shaanxi province from 2018 to 2022, and to evaluate the safety of RVVO vaccination.

    Methods

    The AEFI case data on RVVO vaccination in Shaanxi Province between 2018 and 2022 was gathered from the China AEFI Information Management System., and the vaccination situation of RVVO in Shaanxi province was collected through the immunization planning information management system of Shaanxi province. The analysis was conducted using the descriptive epidemiological technique.

    Results

    A total of 461 102 doses of RVVO were inoculated in Shaanxi province from 2018 to 2022, and 48 cases of AEFI were recorded, with an incidence of 10.41 cases per 100 000 doses, including 43 cases of normal reactions (9.33 cases per 100 000 doses) and 3 cases of abnormal reactions (0.65 cases per 100 000 doses). 2 cases of coupling disease and No serious AEFI cases recorded. The three abnormal reactions were allergic rash (0.22/100 000 doses), acute diarrhea (0.22/100 000 doses) and rotavirus diarrhea (0.22/100 000 doses). 97.92% of the reported AEFI cases were cured or improved after follow-up, and no sequelae and death cases were reported. The age of onset of AEFI was less than 1 year old and occurred on the day of inoculation. The incidence of AEFI at the first, second and third doses was 12.65 cases per 100 000 doses, 10.64 cases per 100,000 doses and 361 cases per 100 000 doses, respectively. RVVO combined with other vaccines reported a general reaction rate of 10.16 per 100 000 doses and an abnormal reaction rate of 0.97 per 100 000 doses in AEFI.

    Conclusion

    The domestic oral live attenuated rotavirus vaccine has good safety, and the timely vaccination rate of children should be further strengthened.

  • Jing WANG, Shi-qi GUI, Qiu-shuo LI, Xing YANG, Quan-xiang ZHOU, Jing-yuan YANG
    Modern Preventive Medicine. 2024, 51(22): 4033-4037.
    Objective

    To explore the longitudinal correlation between cognitive function (CF) and activities of daily living (ADL) of the rural elderly in Guizhou province, and to provide theoretical basis for preventing and controlling health problems of the elderly.

    Methods

    The multi-stage cluster random sampling method was used to select the elderly aged 60 years and above from 12 villages in 2 counties(districts) of Guizhou Province as the research objects. In this study, 792 elderly people who participated in two surveys in 2019 (T1) and 2022 (T2) and were ≥60 years old at baseline with complete variable values were selected as survey subjects. The cross-lagged model was used to investigate the longitudinal relationship between cognitive function and ADL.

    Results

    The cross-lagged model showed that T1 ADL could predict T2 cognitive function after controlling T1 cognitive function (β= -0.120, P<0.001). After controlling for T1 ADL, T1 cognitive function predicted T2 ADL (β= -0.099, P=0.005). In the study of the association between two dimensions of ADL and cognitive function, it was found that T1 IADL could predict T2 cognitive function after controlling for T1 cognitive function (β= -0.138, P<0.001). Similarly, after controlling T1 IADL, T1 cognitive function could predict T2 IADL (β= -0.124, P<0.001). But there was no predictive effect between BADL and cognitive function.

    Conclusion

    There is a longitudinal bidirectional correlation between cognitive function and activities of daily living of the rural elderly in Guizhou, only between IADL and cognitive function, suggesting that strengthening the monitoring and intervention of cognitive function of the elderly can help reducing the risk of the decline of IADL in the elderly, and strengthening the training of IADL plays an important role in delaying cognitive decline.

  • Run-zi CHEN, Ning MA, Yun-feng WANG, Yu BAI, Rong-cheng SU, Zi-yu LI, Xia-min WU, Lin LU
    Modern Preventive Medicine. 2024, 51(22): 4127-4132.
    Objective

    To understand the current status of psychological therapy and counseling services in mental health institutions in mainland China so as to provide reference basis for developing subsequent relevant policies.

    Methods

    From May to June 2021, the National Mental Health Project Office conducted a survey using a self-designed questionnaire on 3 833 institutions providing psychological therapy and counseling services in 31 provinces in mainland China. The data was collected by the mental health project offices at all levels and submitted to the National Mental Health Project Office.

    Results

    2 214(57.76%) institutions provided psychological therapy or counseling services to both outpatient and inpatient patients. In 2020, we served over 21.86 million people, with outpatient patients slightly higher than inpatients. 2 685(70.05%) institutions charge fees, of which 1 206(44.92%) reported that their psychological therapy services are included in medical insurance. The fee standards for psychological therapy and counseling services vary greatly among different institutions, with psychological therapy services ranging from 5 yuan RMB to 3 000 yuan RMB per session and psychological counseling services ranging from 5 yuan RMB to 2 400 yuan RMB per session.

    Conclusion

    Residents have low utilization of psychological therapy or counseling services within medical institutions. The prices of psychological therapy or counseling services vary greatly, and the medical security needs to be deeply implemented.

  • Wei-min GUAN, Huai-ju GE, Qing YU, Shi-hong DONG, Hui-yu JIA, Wen-jing CHANG, Shan JIANG, Wen-yu SU, Yan LIU, Yuan-tao QI, Xiu-li FU, Gui-feng MA
    Modern Preventive Medicine. 2024, 51(22): 4212-4218.
    Objective

    To examine the relationship between the increase in chronic diseases, self-rated health, and depressive tendencies among middle-aged and older adults in China.

    Methods

    Using data from the 2015 and 2018 waves of CHARLS, this study investigated the mediating role of self-rated health and depressive tendencies in the relationship between the increase in chronic diseases among 12 637 Chinese adults aged 45 and above. The mediation analysis was conducted using the PROCESS 4.0 program and validated through the Bootstrap method.

    Results

    The prevalence of depressive tendencies among Chinese adults aged 45 and above was 37.11%. After controlling for relevant variables, the increase in chronic diseases significantly impacted both self-rated health and depressive tendencies (c value: t = 30.984, P<0.001; a value: t=17.072, P<0.001). When self-rated health was introduced as a variable, both the increase in chronic diseases and self-rated health significantly affected depressive tendencies (c’ value: t=8.915, P<0.001; b value: t=30.629, P<0.001). Self-rated health partially mediated the relationship between the increase in chronic diseases and depressive tendencies, with the highest effect proportion of 47.74%.

    Conclusion

    The increase in chronic diseases among middle-aged and older adults can influence depressive tendencies through self-rated health. To reduce depressive tendencies in these patients, it is essential to effectively improve their self-rated health.

  • Ru-xu GE, Qi JING, Tong-tong GUO, Yu-xin JIANG, Ya ZHANG, Zhi-wei DONG, Li-hong JI, Wei-qin CAI, Qian-qian GAO, Wen-gui ZHENG
    Modern Preventive Medicine. 2024, 51(22): 4159-4164.
    Objective

    To analyze the chain-mediated roles of intergenerational spiritual support and depression between social participation and cognitive functioning in older adults.

    Methods

    In this paper, we used data from the China Health and Aging Tracking Survey (CHARLS) 2020 to screen 3 737 study participants who met the criteria. Depression and cognitive function were measured using the Center for Streaming Depression Scale (CES-D 10) and the Overall Cognitive Scoring Instrument, respectively. Two-column correlation analyses (Pearson’s correlation analyses) of correlation were used, and multiple mediating effect models were constructed to investigate the mediating effects of intergenerational spiritual support and depression in the impact of social participation activities and cognitive functioning in older adults.

    Results

    After including control variables such as age, gender, marital status, chronic disease prevalence, and insurance participation, regression analysis showed that older adults’ social participation status had a significant direct effect on their cognitive functioning (β=0.254, P<0.001), while intergenerational spiritual support (β=0.052, P<0.050) and depression status (β= -0.084, P<0.001) also had a significant effect on cognitive function in older adults. The results of mediation effect analysis showed that the simple mediation effects of intergenerational psychiatric support and depression status on the relationship between social participation status and cognitive function in older adults were 0.006(95% CI: 0.001-0.012) and 0.020(95% CI: 0.006-0.036), respectively, and the chained mediation effect was 0.001(95% CI: 0.001-0.004).

    Conclusion

    This study finds a direct mediating effect of depressive status and intergenerational psychiatric support between social participation status and cognitive functioning in older adults, as well as a chain-mediated effect between the two. Social participation of older adults should be improved, while their cognitive function can be improved by children caring more about their parents and reducing depressive symptoms to delay or prevent the occurrence of cognitive impairment in older adults.