Category: Statistics

BMC Psychol. 2023 Jan 13;11(1):11. doi: 10.1186/s40359-023-01044-2.

ABSTRACT

BACKGROUND: Adverse childhood experiences (ACEs) among university students have been linked to a variety of factors and have been shown to have a dose-response relationship with adult health and behavior.

OBJECTIVE: To investigate the effect of exposure to ACEs on academic performance, depression, and suicidal ideations among university students.

METHODS: A cross-sectional survey among university students at a public university in southwestern Uganda was conducted in 2021, integrating the Adverse Childhood Experiences International Questionnaire for assessing ACEs, the Patient Health Questionnaire for assessing depression symptoms and suicidal ideations, and questions assessing the family structure and academic performance as adopted from similar studies. Regression analysis was performed, and 3 models were generated to answer the study hypotheses.

RESULTS: A total of 653 undergraduate university students with a mean age of 22.80 (± 3.16) years were recruited. Almost all students (99.8%) experienced one or more ACEs, with physical abuse being the common ACE reported. The average depression symptom severity was statistically higher among individuals who experienced any form of ACEs. No relationship was observed between the ACEs experienced and self-rated academic performance. Similarly, on regression analysis, the cumulative number of ACEs was not associated with self-rated academic performance (β = – 0.007; 95% CI – 0.031 to 0.016; p = 0.558). However, the cumulative number of ACEs was positively associated with depression symptom severity (β = 0.684; 95% CI 0.531-0.837; p < 0.001), as well as increased the likelihood of suicidal ideations (aOR = 1.264; 95% CI 01.090-1.465; p < 0.001).

CONCLUSIONS: The burden of ACEs is exceedingly high among Ugandan university students, highlighting the urgency in strengthening effective child protection strategies to protect Uganda’s rapidly growing population from mental ill-health and avoid future psychological disability, a burden to the healthcare system. The study’s findings will also be useful to practitioners/policymakers working to prevent/limit child maltreatment globally.

PMID:36639808 | DOI:10.1186/s40359-023-01044-2

BMC Musculoskelet Disord. 2023 Jan 14;24(1):30. doi: 10.1186/s12891-023-06134-1.

ABSTRACT

BACKGROUND: Minimally invasive scoliosis surgery (MISS) is currently introduced on novel technique for surgical treatment of adolescent idiopathic scoliosis (AIS). This study is aimed to evaluate the efficacy of facet fusion in MISS compared to posterior fusion in conventional open scoliosis surgery (COSS) and compare facet fusion rates based on three bone graft substitutes in MISS for adolescent idiopathic scoliosis (AIS).

METHODS: Eighty six AIS patients who underwent scoliosis surgery were divided into two groups: the COSS group and the MISS group. COSS was performed through posterior fusion with allograft. MISS was applied via facet fusion with three bone graft substitutes. The MISS group was further divided into three subgroups based on graft substitute: Group A (allograft), Group B (demineralized bone matrix [DBM]), and group C (demineralized cancellous bone chips). Fusion rate was measured using conventional radiographs to visualize loss of correction > 10°, presence of lysis around implants, breaks in fusion mass, and abnormal mobility of the fused segment.

RESULTS: The fusion rates showed no significant difference in COSS and MISS groups (p = 0.070). In the MISS group, the fusion rates were 85, 100, and 100% in groups A, B, and C, respectively, with no significant difference (p = 0.221). There were no statistical differences between groups A, B, and C in terms of correction rate, fusion rate, and SRS-22 scores (p > 0.05).

CONCLUSIONS: The facet fusion in MISS showed comparable to posterior fusion in COSS with regard to radiological and clinical outcomes. Furthermore, the type of graft substitute among allograft, DBM, and demineralized cancellous bone chips did not affect facet fusion rate or clinical outcomes in MISS. Therefore, MISS showed comparable fusion rate (with no influences on the type of graft substitute) and clinical outcomes to those of COSS in the surgical treatment of AIS.

PMID:36639795 | DOI:10.1186/s12891-023-06134-1

BMC Psychiatry. 2023 Jan 13;23(1):33. doi: 10.1186/s12888-022-04444-7.

ABSTRACT

BACKGROUND: COVID-19 spread between and across nearly every country, with considerable negative health consequences. The current study aimed to determine the prevalence of violence and its association with mental health among Iranians older than 15 years in 2020.

METHODS: Data was collected through National Mental Health Survey on 24,584 Iranians older than 15 years in 2020. were analyzed to determine the prevalence of violence and its association with mental health. Multi-stage sampling method was used, and data on demographic characteristics and domestic-social violence and mental health (GHQ-28) were collected. Data analysis was administered using descriptive statistics and a chi-square test at a 95% level.

RESULTS: The mean age of participants was 44.18 ± 16.4 years. The overall prevalence of domestic and social violence was 11.4% and 5.5%, respectively. Verbal violence was the most common type; with 61.8% and 66.8% for domestic and social violence, respectively. A suspected case of mental disorder, female gender, being younger than 25 years, living apart together, unemployment, low education, and history of COVID-19 infection presented a significant association with domestic and social violence (p > 0.05).

CONCLUSION: In comparison to the previous study in 2015, the prevalence of violence has increased. Therefore, domestic and social violence are the social concerns of Iranian society, indicating the necessity of appropriate interventions, particularly for those suspected of mental disorders and young women with low education levels.

PMID:36639790 | DOI:10.1186/s12888-022-04444-7

BMC Public Health. 2023 Jan 13;23(1):97. doi: 10.1186/s12889-022-14963-3.

NO ABSTRACT

PMID:36639758 | DOI:10.1186/s12889-022-14963-3

J Orthop Surg Res. 2023 Jan 14;18(1):38. doi: 10.1186/s13018-022-03486-7.

ABSTRACT

OBJECTIVE: To clarify the clinical efficacy of styloid incision truncation via percutaneous punching in treating styloid process (styloid) syndrome.

METHODS: The clinical data of 40 styloid syndrome patients treated in our hospital from July 2018 to August 2021 were chosen and divided into an observation group and a control group in a random manner, with 20 cases in each. The control group received treatment with styloid truncation via an external cervical approach, and the observation group received treatment with styloid incision truncation via percutaneous punching. The operation time, intraoperative blood loss, length of truncated styloid, clinical efficacy, pain scores, postoperative complications and inflammatory cytokine levels were assessed in the both groups.

RESULTS: The intraoperative blood loss, operation time, length of truncated styloid and hospital stay in the observation group were significantly lower than those in the control group (P < 0.05). VAS pain scores were higher in both groups after the operation compared to before the operation. However, the observation group showed a statistically significant reduction in comparison with the control group (P < 0.05). The treatment effectiveness and complication rates of the two groups exhibited significant differences (P < 0.05). After the operation, TNF-α, CRP, and IL-6 levels in both groups were elevated compared to those before the operation. The observation group, however, showed significant depletion compared to the control group (P < 0.05).

CONCLUSION: Styloid incision truncation via percutaneous punching was not only effective in treating styloid syndrome, but also caused less trauma and fewer complications. It promotes patient recovery and requires a simple operation, making it worthy of promotion in hospitals.

PMID:36639752 | DOI:10.1186/s13018-022-03486-7

BMC Psychiatry. 2023 Jan 13;23(1):37. doi: 10.1186/s12888-022-04443-8.

ABSTRACT

BACKGROUND: Major Depressive Disorder is one of the most common mental disorders, and it is the main cause of disability worldwide with a prevalence ranging from 7 to 21%.

OBJECTIVE: The goal of this study was to predict the time it took for patients with severe depressive disorders at Jimma University Medical Center to experience their initial symptomatic recovery.

STUDY DESIGN: The researchers utilized a prospective study design.

METHODS: Patients with major depressive disorder were followed up on at Jimma University Medical Center from September 2018 to August 2020 for this study. The Gamma and Inverse Gaussian frailty distributions were employed with Weibull, Log-logistic, and Log-normal as baseline hazard functions. Akaike Information Criteria were used to choose the best model for describing the data.

RESULTS: This study comprised 366 patients, with 54.1% of them experiencing their first symptomatic recovery from a severe depressive disorder. The median time from the onset of symptoms to symptomatic recovery was 7 months. In the study area, there was a clustering effect in terms of time to first symptomatic recovery from major depressive disorder. According to the Log-normal Inverse-Gaussian frailty model, marital status, chewing khat, educational status, work status, substance addiction, and other co-variables were significant predictors of major depressive disorder (p-value < 0.05).

CONCLUSION: The best model for describing the time to the first symptomatic recovery of major depressive disorder is the log-normal Inverse-Gaussian frailty model. Being educated and working considerably were the variables that reduces the time to first symptomatic recovery from major depressive disorder; whereas being divorced, chewing khat, substance abused and other co-factors were the variables that significantly extends the time to first symptomatic recovery.

PMID:36639751 | DOI:10.1186/s12888-022-04443-8

BMC Genomics. 2023 Jan 13;24(1):17. doi: 10.1186/s12864-023-09123-9.

ABSTRACT

BACKGROUND: Transcriptional enhancers are essential for gene regulation, but how these regulatory elements are best defined remains a significant unresolved question. Traditional definitions rely on activity-based criteria such as reporter gene assays, while more recently, biochemical assays based on chromatin-level phenomena such as chromatin accessibility, histone modifications, and localized RNA transcription have gained prominence.

RESULTS: We examine here whether these two types of definitions, activity-based and chromatin-based, effectively identify the same sets of sequences. We find that, concerningly, the overlap between the two groups is strikingly limited. Few of the data sets we compared displayed statistically significant overlap, and even for those, the degree of overlap was typically small (below 40% of sequences). Moreover, a substantial batch effect was observed in which experiment set rather than experimental method was a primary driver of whether or not chromatin-defined enhancers showed a strong overlap with reporter gene-defined enhancers.

CONCLUSIONS: Our results raise important questions as to the appropriateness of both old and new enhancer definitions, and suggest that new approaches are required to reconcile the poor agreement among existing methods for defining enhancers.

PMID:36639739 | DOI:10.1186/s12864-023-09123-9

Trials. 2023 Jan 14;24(1):26. doi: 10.1186/s13063-022-07060-8.

ABSTRACT

BACKGROUND: Gestational diabetes mellitus (GDM) is a common perinatal condition. Convincing evidence has shown that hyperglycemia and other chronic comorbidities of diabetes during the prenatal period increase maternal and fetal risk. Several guidelines have identified lifestyle management as the first-line therapy in GDM patients. To improve the efficacy of lifestyle intervention, cognitive behavior therapy (CBT) is proposed as a solution to improve clinical outcomes. The objective of this trial is to determine the efficacy in treating hyperglycemia of mobile-based CBT interventions in GDM patients, compared with conventional face-to-face interventions. METHODS: This trial is designed as a prospective randomized controlled trial, which enrolled the patients diagnosed with GDM in First People’s Hospital of Kunshan affiliated with Jiangsu University from September 2021 to March 2023 with a 3-month follow-up. The specific randomization method was established and implemented through the central randomization system of EDC clinical trials. The percentage of all blood glucose levels collected within the normal range between the two groups at baseline, during the intervention period, and postpartum infant and maternal outcomes will be measured. Summary statistics for continuous variables will include the number of subjects, mean, median, SD, or the standard error, minimum, and maximum. The chi-square test, t test, and paired-sample t test were used for statistical analysis of differences between groups.

DISCUSSION: This trial investigates the effects of mobile-based CBT intervention on blood glucose levels in GDM patients.

TRIAL REGISTRATION: Chinese Clinical Trial Registry (ChiCTR2100048527) [registered: 2021/07/09].

PMID:36639702 | DOI:10.1186/s13063-022-07060-8

J Exp Clin Cancer Res. 2023 Jan 14;42(1):22. doi: 10.1186/s13046-022-02590-0.

ABSTRACT

BACKGROUND: Nitric oxide-releasing drugs are used for cardiovascular diseases; however, their effects on the tumor immune microenvironment are less clear. Therefore, this study explored the impact of nitric oxide donors on tumor progression in immune-competent mice.

METHODS: The effects of three different nitric oxide-releasing compounds (SNAP, SNP, and ISMN) on tumor growth were studied in tumor-bearing mouse models. Three mouse tumor models were used: B16F1 melanoma and LL2 lung carcinoma in C57BL/6 mice, CT26 colon cancer in BALB/c mice, and LL2 lung carcinoma in NOD/SCID mice. After nitric oxide treatment, splenic cytokines and lymphocytes were analyzed by cytokine array and flow cytometry, and tumor-infiltrating lymphocytes in the TME were analyzed using flow cytometry and single-cell RNA sequencing.

RESULTS: Low doses of three exogenous nitric oxide donors inhibited tumor growth in two immunocompetent mouse models but not in NOD/SCID immunodeficient mice. Low-dose nitric oxide donors increase the levels of splenic cytokines IFN-γ and TNF-α but decrease the levels of cytokines IL-6 and IL-10, suggesting an alteration in Th2 cells. Nitric oxide donors increased the number of CD8⁺ T cells with activation gene signatures, as indicated by single-cell RNA sequencing. Flow cytometry analysis confirmed an increase in infiltrating CD8⁺ T cells and dendritic cells. The antitumor effect of nitric oxide donors was abolished by depletion of CD8⁺ T cells, indicating the requirement for CD8⁺ T cells. Tumor inhibition correlated with a decrease in a subtype of protumor macrophages and an increase in a subset of Arg1-positive macrophages expressing antitumor gene signatures. The increase in this subset of macrophages was confirmed by flow cytometry analysis. Finally, the combination of low-dose nitric oxide donor and cisplatin induced an additive cancer therapeutic effect in two immunocompetent animal models. The enhanced therapeutic effect was accompanied by an increase in the cells expressing the gene signature of NK cell.

CONCLUSIONS: Low concentrations of exogenous nitric oxide donors inhibit tumor growth in vivo by regulating T cells and macrophages. CD8⁺ T cells are essential for antitumor effects. In addition, low-dose nitric oxide donors may be combined with chemotherapeutic drugs in cancer therapy in the future.

PMID:36639681 | DOI:10.1186/s13046-022-02590-0

BioData Min. 2023 Jan 14;16(1):1. doi: 10.1186/s13040-022-00318-6.

ABSTRACT

Urban parks constitute one of the main leisure areas, especially for the most vulnerable people in our society, children, and the elderly. Contact with soils can pose a health risk. Microbiological testing is a key aspect in determining whether they are suitable for public use. The aim of this work is to map the spatial distribution of potential dangerous Enterobacteria but also bioremediation useful (lipase producers) isolates from soils in an urban park in the area of Valencia (Spain). To this end, our team has collected 25 samples of soil and isolated 500 microorganisms, using a mobile application to collect information of the soil samples (i.e. soil features, temperature, humidity, etc.) with geolocation. A combined protocol including matrix-assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF MS) and 16S rDNA sequencing PCR has been established to characterize the isolates. The results have been processed using spatial statistical techniques (using Kriging method), taking into account the number of isolated strains, also proving the reactivity against standard pathogenic bacterial strains (Escherichia coli, Bacillus cereus, Salmonella, Pseudomonas and Staphylococcus aureus), and have increased the number of samples (to 896 samples) by interpolating spatially each parameter with this statistical method. The combined use of methods from biology and computer science allows the quality of the soil in urban parks to be predicted in an agile way, which can generate confidence in its use by citizens.

PMID:36639651 | DOI:10.1186/s13040-022-00318-6