The mediation effect of health literacy on social support and health lifestyle of patients with chronic diseases.

BACKGROUND: Previous studies have identified the antecedents of the lifestyle of many patients with chronic diseases. However, the mechanism of social support affecting the lifestyle of patients with chronic diseases is unclear, and the role of health literacy in social support affecting the lifestyle of patients with chronic diseases has not been found. Therefore, this study aims to explore the status quo of social support, health literacy and healthy lifestyle of patients with chronic diseases in China and the relationship among them. METHODS: Through convenient sampling, 356 patients with chronic diseases were surveyed using a health promoting lifestyle scale, a chronic disease patients' health literacy scale and a social support scale. RESULTS: There was a pairwise positive correlation between social support, health lifestyle and health literacy (R = 0.397,0.356,0.556, P < 0.01). After controlling gender, age and education level, it is found that social support has a positive impact on health lifestyle, and health literacy plays an intermediary role between social support and health lifestyle, accounting for 45.78 % of the total effect. CONCLUSION: To promote the healthy lifestyle of patients with chronic diseases and delay the development of the disease, we should strengthen social support for patients with chronic diseases; We should simultaneously take various measures to improve their health literacy.

Efficacy of bronchoalveolar lavage combined with prone positioning in children with Mycoplasma pneumoniae pneumonia and atelectasis: a prospective randomized controlled study / 中国当代儿科杂志

OBJECTIVES@#To study the efficacy of bronchoalveolar lavage (BAL) combined with prone positioning in children with Mycoplasma pneumoniae pneumonia (MPP) and atelectasis and its effect on pulmonary function.@*METHODS@#A prospective study was conducted on 94 children with MPP and atelectasis who were hospitalized in Ordos Central Hospital of Inner Mongolia from November 2020 to May 2023. The children were randomly divided into a treatment group and a control group, with 47 children in each group. The children in the treatment group were given conventional treatment, BAL, and prone positioning, and those in the control group were given conventional treatment and BAL. The two groups were compared in terms of fever, pulmonary signs, length of hospital stay, lung recruitment, and improvement in pulmonary function.@*RESULTS@#Compared with the control group, the treatment group had significantly shorter time to improvement in pulmonary signs and length of hospital stay and a significantly higher rate of lung recruitment on day 7 of hospitalization, on the day of discharge, and at 1 week after discharge (P<0.05). Compared with the control group, the treatment group had significantly higher levels of forced vital capacity (FVC) as a percentage of the predicted value, forced expiratory volume (FEV) in 1 second as a percentage of the predicted value, ratio of FEV in 1 second to FVC, forced expiratory flow at 50% of FVC as a percentage of the predicted value, forced expiratory flow at 75% of FVC as a percentage of the predicted value, and maximal mid-expiratory flow as a percentage of the predicted value on the day of discharge and at 1 week after discharge (P<0.05). There was no significant difference in the time for body temperature to return to normal between the two groups (P>0.05).@*CONCLUSIONS@#In the treatment of children with MPP and atelectasis, BAL combined with prone positioning can help to shorten the time to improvement in pulmonary signs and the length of hospital stay and promote lung recruitment and improvement in pulmonary function.

Exploring the relationship between social exclusion and social media addiction: The mediating roles of anger and impulsivity.

Previous studies have examined the relationships between some antecedents and social media addiction. However, an important factor - social exclusion - has not received enough attention in the literature, the underlying psychological mechanisms that link social exclusion to social media addiction are still unclear. The current study investigated the relation between social exclusion and social media addiction as well as the mediating effects of anger and impulsivity on this relationship. An online survey was conducted, the sample included 573 university students (323 females). The results suggested that: (1) social exclusion was positively correlated with social media addiction; (2) anger and impulsivity separately mediated the relation between social exclusion and social media addiction; and (3) anger and impulsivity sequentially mediated the association between social exclusion and social media addiction. The results of the present study were conducive to understanding the associations and the psychological mechanisms between the study variables.

Exploring the relationship between mental health literacy and psychological distress in adolescents: A moderated mediation model.

Previous studies on the relationship between mental health literacy and psychological distress were rich, but little was known about the influence mechanism between them, and almost no research was found on the role of psychological resilience and subjective socio-economic status in the relationship between them. This study used a moderated mediation model to test the mediating effect of psychological resilience on the relationship between mental health literacy and psychological distress, and the moderating effect of subjective socioeconomic status in Chinese adolescents. We investigated 700 junior high school students in Inner Mongolia, China through online survey. The results are as follows: (1) Mental health literacy is a negative predictor of adolescents' psychological distress; (2) psychological resilience mediated the association between mental health literacy and psychological distress; (3) The first half of the model, that is, the relationship between mental health literacy and psychological resilience, is moderated by subjective socioeconomic status. Specifically, for adolescents with low subjective socioeconomic status, the positive predictive effect of mental health literacy on psychological resilience is obviously enhanced. The current findings would contribute to a deep understanding of the relationship among adolescents' mental health literacy, psychological resilience, subjective socioeconomic status and psychological distress, which may be of great significance to the prevention of adolescents' psychological distress.

Short version of the smartphone addiction scale: Measurement invariance across gender.

The Smartphone Addiction Scale Short Version (SAS-SV) has been widely used in research, but little is known about the measurement invariance across gender. The current study measured SAS-SV invariance between male and female college students in a sample of 1112 participants. Single- and multiple-group confirmatory factor analyses (CFAs) of smartphone addiction symptom ratings were conducted using R program with RStudio. SAS-SV was psychometrically robust in measuring the severity of smartphone addiction among college students, as well as the gender-based invariance. The differences in SAS-SV between male and female participants were likely to represent true gender differences, and meaningful comparisons could be made.

Reliability and validity of the Chinese version of tolerance for mental pain scale for college students / 中华行为医学与脑科学杂志

Objective:To examine the reliability and validity of tolerance of mental pain scale (TMPS-10) in college students.Methods:A total of 2 171 college students were recruited in this study from November to December 2021.Sample 1( n=1 085) was tested for item analysis and exploratory factor analysis from November to December 2021.Sample 2 ( n=1 086) was tested for confirmatory factor analysis, convergence validity, and criterion validity analysis.Ninety-nine cases were randomly selected from sample 2 for retest intraclass correlation efficient (ICC) 30 days later.The questionnaire of suicide attitude (QSA), Beck depression inventory version 2 (BDI-Ⅱ), self-rating anxiety scale (SAS), and Chinese perceived stress scale (CPSS) were used to examine criterion validity of TMPS-10.The SPSS 25.0 and AMOS 21.0 softwares were used for statistical analysis. Results:The exploratory factor analysis extracted two common factors, which explained 72.33% of the total variance contribution rate.The confirmatory factor analysis showed a good model fit ( χ2/ df=7.85, AGFI=0.92, GFI=0.95, TLI=0.96, CFI=0.97, IFI=0.97, RMSEA=0.08). The combined reliability (CR) of the Chinese version of TMPS-10 and its two factors were 0.96, 0.93 and 0.89, and the average variances extracted (AVE) were 0.72, 0.73 and 0.63.The total score of TMPS-10 was positively correlated with the two dimensions of QSA (knowledge of the nature of suicide behavior and attitude to euthanasia) ( r=0.40, 0.09, both P<0.01), while was negatively correlated with the other two dimensions of QSA (attitude to suicide and attitude to suicide family members), and the total scores of BDI-Ⅱ, SAS, and CPSS ( r=-0.30, -0.34, -0.30, -0.45, -0.46, all P<0.01). The Cronbach α coefficients of the Chinese version of TMPS-10 and its two factors were 0.82, 0.89 and 0.93, and the spilt-half reliabilities were 0.85, 0.89 and 0.89.The ICC of the Chinese version of TMPS-10 and its two factors after 30 days were 0.77, 0.87 and 0.86. Conclusion:The Chinese version of TMPS-10 has good reliability and validity among college students, and it can effectively evaluate students' endurance of psychological pain.

Exploring the relationship between social exclusion and smartphone addiction: The mediating roles of loneliness and self-control.

Previous studies have identified many antecedents of smartphone addiction. However, social exclusion as a risk factor for smartphone addiction has not been widely studied, and little is known concerning the psychological mechanism underlying this association. The present study tested the influence of social exclusion on smartphone addiction as well as the mediating roles of loneliness and self-control in this relationship. An online survey was conducted, and the sample consisted of 573 university students (323 females). The results revealed that (1) social exclusion was a positive predictor of smartphone addiction; (2) loneliness and self-control separately mediated the association between social exclusion and smartphone addiction; and (3) loneliness and self-control sequentially mediated the relation between social exclusion and smartphone addiction. Possible explanations were discussed. The findings of the current study would contribute to understanding the relationships between these study variables as well as the psychological mechanisms underlying these associations.

Measurement Invariance of the Bergen Social Media Addiction Scale Across Genders.

Social media addiction has been a hot issue in scientific research in recent years, its antecedents and consequences have been extensively studied. Among these studies, Bergen Social Media Addiction Scale (BSMAS) is one of the most commonly used instruments. However, little is known about whether this scale has the equivalent psychometric properties for men and women. The purpose of the current study is to examine the measurement invariance (including configural invariance, metric invariance, scalar invariance, and error variance invariance) of the BSMAS across genders. In total, 1,120 participants were recruited from 5 universities. R program was applied to conduct the single-group and multiple-group confirmatory factor analysis (CFA) based on the social media addiction symptom ratings. The results demonstrated that BSMAS was a valid and psychometrically robust instrument for assessing the risk of social media addiction among university students, and that the four types of measurement invariance of the BSMAS across genders were confirmed. Consequently, gender differences in the BSMAS scores are likely to reflect the genuine differences between men and women, and comparisons on the level of social media addiction of university students between gender groups can be interpreted meaningfully.

Regulatory emotional self-efficacy and psychological distress among medical students: multiple mediating roles of interpersonal adaptation and self-acceptance.

BACKGROUND: Psychological distress (depression, anxiety and stress) is more common among medical students than in the general population, and is an important cause of insomnia, internet addiction, substance abuse, decreased academic performance and increased suicidality in medical students. METHODS: To examine the mechanism by which regulatory emotional self-efficacy affects medical students' psychological distress, a questionnaire of 539 medical students using an interpersonal adaptability scale, regulatory emotional self-efficacy scale, self-acceptance scale and depression-anxiety-stress scale was conducted. RESULTS: ① Regulatory emotional self-efficacy, interpersonal adaptability and self-acceptance are positively correlated, but they are negatively correlated with psychological distress. ② The mediation model shows that interpersonal adaptation and self-acceptance are the mediation variables of the effect of regulatory emotional self-efficacy on psychological distress, and the total mediation effect value is -0.37, accounting for 86.05% of the total effect (-0.43). Specifically, the effect involves three paths: first, regulatory emotional self-efficacy indirectly affects psychological distress through interpersonal adaptation (effect value-0.24); second, regulatory emotional self-efficacy indirectly affects psychological distress through interpersonal adaptation and self-acceptance (effect value-0.08); and third, regulatory emotional self-efficacy indirectly affects psychological distress through self-acceptance (effect value -0.05). CONCLUSIONS: Interpersonal adaptation and self-acceptance have a significant mediating effect between regulatory emotional self-efficacy and psychological distress, and the chain mediating effect of interpersonal adaptation and self-acceptance is also significant.

[Applicability of multiple remotely sensed vegetation indices for extracting key phenological metrics of Tamarix chinensis shrubs based on CO2 flux observation and Sentinel-2 data]. / æŸ½æŸ³çŒä¸›å ³é”®ç‰©å€™å‚æ•°å¤šç§æ¤è¢«æŒ‡æ•°é¥æ„Ÿæå–çš„é€‚ç”¨æ€§­­åŸºäºŽCO2通量观测和Sentinel-2数据.

We analyzed the relationship between gross primary productivity (GPP) and environmental factors at Sidaoqiao Superstation of the Ejina Oasis in China's Gobi Desert, by combining eddy flux and meteorological data from 2018 to 2019 and Sentinel-2 remote sensing images from 2017 to 2020. We evaluated the applicability of 12 remote sensing vegetation indices to simulate the growth of Tamarix chinensis and extract key phenological metrics. A seven-parameter double-logistic function (DL-7) + global model function (GMF) was used to fit the growth curves of GPP and vegetation indices. Three key phenological metrics, i.e., the start of the growing season (SOS), the peak of the growing season (POS), and the end of the growing season (EOS), were extracted for each year. Growing season degree days (GDD) and soil water content were the main environmental factors affecting the phenological dynamics of T. chinensis. Compared with 2018, the lower temperatures in 2019 resulted in slower accumulation rate of accumulated temperature before the SOS. T. chinensis required longer heat accumulation to enter growing season, which might cause later SOS in 2019. The hydrothermal conditions between SOS and POS were similar for 2018 and 2019. Howe-ver, the POS in 2019 was 8 days later than that in 2018, because of the late SOS in 2019. Following the POS in 2019, high GDD and low soil water content caused the T. chinensis to suffer from water stress, resulting in a shortened late growing season. The linear regression between the standardized Sentinel-2 vegetation index and the average value of GPP between 10:00 and 14:00 indicated that the enhanced vegetation index of the broadband vegetation index and the chlorophyll red edge index, inverted red edge chlorophyll index, and red-edge normalized difference vegetation index (NDVI705) of the narrowband vegetation index were highly consistent with the GPP of T. chinensis. Remote sensing extraction of SOS and POS of T. chinensis suggested that the Sentinel-2 narrowband vegetation index was more accurate than the broadband vegetation index. The modified chlorophyll absorption in reflectance index provided the most accurate extraction of SOS, while the MERIS terrestrial chlorophyll index provided the most accurate extraction of EOS. Conversely, the Sentinel-2 broadband vegetation index was the most accurate for extracting POS, especially the 2-band enhanced vegetation index and the near-infrared reflectance of vegetation. Overall, NDVI705 was the best index to estimate phenological metrics.

The relationships between negative emotions and latent classes of smartphone addiction.

The relationships between negative emotions and smartphone addiction has been tested through the literature. However, most of the studies applied variable-centered approaches. The heterogeneity of smartphone addiction severity has not been examined for the associations with negative emotion variables. The purposes of the present study is to explore the latent classes of smartphone addiction and analyze the relationships between depression, social anxiety and boredom and these subgroups. The Smartphone Addiction Scale-Short Version (SAS-SV) and three negative emotion scales were employed to conduct a survey of 539 college students. Mplus8.3 software was applied to perform the latent class analysis (LCA) based on the smartphone addiction symptom ratings. ANOVA and multinomial logistic regression were used to explore the differences among these latent categories and the associations between these subgroups and negative emotion variables. Results demonstrated that Negative emotional variables were significantly correlated with smartphone addiction proneness. Based on their scores on the Smartphone Addiction Scale, smartphone users were divided into three latent classes: low risk class, moderate class and high risk class. Women were more likely to be classified in the high-risk class. The severity of depression and boredom was able to predict the membership of the latent class effectively; while social anxiety failed to do this in the high risk class.

Cross-cultural validity of the theory of planned behavior for predicting healthy food choice in secondary school students of Inner Mongolia.

AIMS: Unhealthy eating behavior is a serious health concern among secondary school students in Inner Mongolia. To predict their healthy food choices and devise methods of correcting unhealthy choices, we sought to confirm the cross-cultural validity of the theory of planned behavior among Inner Mongolian students. MATERIALS AND METHODS: A cross-sectional study, conducted between November and December 2014. Overall, 3047 students were enrolled. We devised a questionnaire based on the theory of planned behavior to measure its components (intentions, attitudes, subjective norms, and perceived behavioral control) in relation to healthy food choices; we also assessed their current engagement in healthy food choices. RESULTS: A principal component analysis revealed high contribution rates for the components (69.32%-88.77%). A confirmatory factor analysis indicated that the components of the questionnaire had adequate model fit (goodness of fit index=0.997, adjusted goodness of fit index=0.984, comparative fit index=0.998, and root mean square error of approximation=0.049). Notably, data from participants within the suburbs did not support the theory of planned behavior construction. Several paths did not predict the hypothesis variables. However, attitudes toward healthy food choices strongly predicted behavioral intention (path coefficients 0.49-0.77, p<0.01), regardless of demographic characteristics. CONCLUSION: Our results support that the theory of planned behavior can apply to secondary school students in urban areas. Furthermore, attitudes towards healthy food choices were the best predictor of behavioral intentions to engage in such choices in Inner Mongolian students.

Selenium supplementation alters gene expression profiles associated with innate immunity in whole-blood neutrophils of sheep.

Footrot (FR) is a common, contagious bacterial disease of sheep that results in lameness and significant economic losses for producers. We previously reported that sheep affected with FR have lower whole-blood (WB) selenium (Se) concentrations and that Se supplementation in conjunction with routine control practices accelerates recovery from FR. To determine whether oral Se-yeast administered at supranutritional levels (>4.9 mg Se/week) alters the ability of sheep to resist or recover from FR infection, 60 ewes with and 60 ewes without FR were drenched once weekly for 62.5 weeks with 0, 4.9, 14.7, or 24.5 mg organic Se-yeast (30 ewes per treatment group). Footrot prevalence and severity were measured at 0, 20, 28, 40, and 60 weeks of Se supplementation. Genomic expression of eight WB-neutrophil genes for selenoproteins and seven WB-neutrophil genes for proteins involved in innate immunity was determined at the end of the treatment period using SYBR Green and quantitative polymerase chain reaction methodology. Supranutritional Se-yeast supplementation successfully increased Se status in sheep but did not prevent FR. Supranutritional Se-yeast supplementation increased WB-neutrophil expression of genes involved in innate immunity: L-selectin, interleukin-8 receptor, and toll-like receptor 4, which were or tended to be lower in ewes affected with FR. Furthermore, supranutritional Se-yeast supplementation altered the expression of selenoprotein genes involved in innate immunity, increasing selenoprotein S and glutathione peroxidase 4 and decreasing iodothyronine deiodinases 2 and 3. In conclusion, supranutritional Se-yeast supplementation does not prevent FR, but does alter WB-neutrophil gene expression profiles associated with innate immunity, including reversing those impacted by FR.