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Nevin Manimala Statistics

Skeletal and dento-alveolar changes obtained with customised and preformed eruption guidance appliances after 1-year treatment in early mixed dentition

Eur J Paediatr Dent. 2023 Jun 1;24:1. doi: 10.23804/ejpd.2023.1727.

ABSTRACT

AIM: The aim of this study was to assess the skeletal and dento-alveolar changes produced by a customised eruption guidance appliance (EGA) and a preformed EGA in subjects presenting a skeletal class II pattern during early mixed dentition and to evaluate the differences between the two devices.

METHODS: All subjects included in the study were randomly selected from the record’s archive according to the following inclusion criteria: (1) patients presenting upper central incisor and first permanent molars fully erupted; (2) early mixed dentition with age between 7 to 9 years old; (3) Angle class I or class II malocclusion; (4) increased overjet > 4 mm;(5) deep bite with at least 2/3 overlapping of the incisors; (6) no previous orthodontic treatment apart from maxillary expansion treatment. All children belonging to the case group received treatment with a 3D printed EGA whereas the other patients belonging to the control group were treated with preformed EGA. Records consisted in digital dental models and lateral cephalogram at the beginning (T0) and after 1 year of treatment (T1). Data collected on the digital models included the dentoalveolar changes in overbite, overjet, sagittal molar relationship, and dental crowding. Cephalometric tracings were computed by a single blinded observer using Dolphin Imaging software. Statistical analysis was performed with SPSS (version 25.00; IBM Corp, Armonk, NY). Comparison regarding the cephalometric changes between T1-T2 was carried out with paired t-test. Difference in distribution regarding sagittal molar and canine relationship and anterior crowding between groups at T1 and T2 has been computed with chi-square test. The independent sample t-test was used to perform the between group comparison.

CONCLUSION: In the short time, both the appliances showed to be effective in correcting class II malocclusion, anterior crowding, overjet and overbite. Custom-made appliance demonstrated to be significantly more effective in correcting anterior crowding, the dento-skeletal vertical relation and position of permanent incisor compared to the preformed appliance. Adopting a customised device, effects due to an average prescription appliance used to a specific patient can be reduced, resulting in more predictable results.

PMID:37337957 | DOI:10.23804/ejpd.2023.1727

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Nevin Manimala Statistics

Association of HOTAIR rs2366152 and rs1899663 polymorphisms with colorectal cancer susceptibility in Iranian population: A case-control study

J Clin Lab Anal. 2023 Jun 20:e24931. doi: 10.1002/jcla.24931. Online ahead of print.

ABSTRACT

BACKGROUND: Despite the fact that numerous studies have investigated the association between genetic polymorphisms and colorectal cancer (CRC), more research is required to comprehend the molecular mechanisms of CRC. In the present study, we investigated the association between lncRNA HOTAIR rs2366152 and rs1899663 polymorphisms with CRC susceptibility in the Iranian population.

METHODS: This case-control study consisting of 187 CRC patients and 200 healthy samples. The tetra-amplification refractory mutation system-polymerase chain reaction (Tetra-ARMS-PCR) technique was used for the genotyping of rs2366152 and rs1899663 polymorphisms.

RESULTS: The findings showed that the AG genotype of the rs2366152 polymorphism has a protective effect on CRC susceptibility (OR = 0.60, 95% CI: 0.38-0.94, p-value = 0.023). Furthermore, rs2366152 polymorphism associated with CRC risk in an over dominant inheritance model (p-value = 0.0089). According to the outcomes of the rs1899663 polymorphism, the GT genotype had protective effects on CRC risk (OR = 0.55, 95% CI: 0.35-0.86, p-value = 0.008). Moreover, statistical analysis has shown that the rs1899663 polymorphism was associated with CRC risk in dominant (p-value = 0.013) and overdominant (p-value = 0.0086) inheritance models in the Iranian population.

CONCLUSION: This study confirmed that HOTAIR rs2366152 and rs1899663 polymorphisms associated with CRC risk in different inheritance models. It is indeed necessary to do additional research to verify our findings.

PMID:37337955 | DOI:10.1002/jcla.24931

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Nevin Manimala Statistics

A network analysis of disordered eating symptoms, big-five personality traits, and psychological distress in Chinese adults

Int J Eat Disord. 2023 Jun 20. doi: 10.1002/eat.24012. Online ahead of print.

ABSTRACT

OBJECTIVE: Previous studies have revealed associations between disordered eating symptoms, big-five personality traits, and psychological distress. However, limited research has explored these relationships as a network, including their interconnections, and even less has done so in non-Western populations. We employed network analysis to investigate the co-occurrence of disordered eating symptoms, big-five personality traits, and psychological distress in Chinese adults.

METHOD: A sample of 500 Chinese adults (256 men) completed measures assessing big-five personality traits, psychological distress, and disordered eating symptoms. The network of personality traits, psychological distress, and disordered eating symptoms was estimated, including its central and bridge nodes.

RESULTS: The central nodes in the network were the facets of openness (like adventure), extraversion (like going to social and recreational parties), and disordered eating symptoms (dissatisfaction with body weight or shape). Moreover, certain facets of neuroticism (always worrying something bad will happen), psychological distress (feeling worthless), and an inverse facet of extraversion (bored by parties with lots of people) were identified as essential bridge nodes in maintaining the structure of the network.

CONCLUSION: Our findings suggest that personality traits (e.g., openness and extraversion) and body dissatisfaction are important in maintaining the network in a community sample of Chinese adults. While future replication is needed, findings from this study suggest that individuals with negative self-thinking, predisposed neuroticism, and extraversion may be at risk of developing disordered eating symptoms.

PUBLIC SIGNIFICANCE: The present study contributes to existing knowledge by employing a network perspective to examine the associations between disordered eating symptoms, big-five personality traits, and psychological distress in a Chinese adult community sample. The identified facets of neuroticism and extraversion and symptoms of psychological distress may be worthy of targeting in the prevention and treatment of disordered eating in the Chinese context.

PMID:37337937 | DOI:10.1002/eat.24012

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Nevin Manimala Statistics

Predicting 1-Year Mortality in Outpatients With Heart Failure With Reduced Left Ventricular Ejection Fraction: Do Empiric Models Outperform Physician Intuitive Estimates? A Multicenter Cohort Study

Circ Heart Fail. 2023 Jun 20:e010312. doi: 10.1161/CIRCHEARTFAILURE.122.010312. Online ahead of print.

ABSTRACT

BACKGROUND: Many studies have demonstrated that physicians often err in estimating patient prognosis. No studies have directly compared physician to model predictive performance in heart failure (HF). We aimed to compare the accuracy of physician versus model predictions of 1-year mortality.

METHODS: This multicenter prospective cohort study on 11 HF clinics in 5 provinces in Canada included consecutive consented outpatients with HF with reduced left ventricular ejection fraction (<40%). By collecting clinical data, we calculated predicted 1-year mortality using the Seattle HF Model (SHFM), the Meta-Analysis Global Group in Chronic HF score, and the HF Meta-Score. HF cardiologists and family doctors, blinded to model predictions, estimated patient 1-year mortality. During 1-year follow-up, we recorded the composite end point of mortality, urgent ventricular assist device implant, or heart transplant. We compared physicians and model discrimination (C statistic), calibration (observed versus predicted event rate), and risk reclassification.

RESULTS: The study included 1643 patients with ambulatory HF with a mean age of 65 years, 24% female, and mean left ventricular ejection fraction of 28%. Over 1-year follow-up, 9% had an event. The SHFM had the best discrimination (SHFM C statistic 0.76; HF Meta-Score 0.73; Meta-Analysis Global Group in Chronic Heart Failure 0.70) and calibration. Physicians’ discrimination differed little (0.75 for HF cardiologists and 0.73 for family doctors) but both physician groups substantially overestimated risk by >10% in both low- and high-risk patients (poor calibration). In risk reclassification analysis, among patients without events, the SHFM better classified 51% in comparison to HF cardiologists and 43% in comparison to family doctors. In patients with events, the SHFM erroneously assigned lower risk to 44% in comparison to HF cardiologists and 34% in comparison to family doctors.

CONCLUSIONS: Family doctors and HF cardiologists showed adequate risk discrimination, with however substantial overestimation of absolute risk. Predictive models showed higher accuracy. Incorporating models in family and HF cardiology practices may improve patient care and resource use in HF with reduced left ventricular ejection fraction.

REGISTRATION: URL: https://www.

CLINICALTRIALS: gov; Unique identifier: NCT04009798.

PMID:37337896 | DOI:10.1161/CIRCHEARTFAILURE.122.010312

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Nevin Manimala Statistics

Incidence of cancer in patients with ulcerative colitis 30 years after diagnosis (the IBSEN study)

Scand J Gastroenterol. 2023 Jun 20:1-7. doi: 10.1080/00365521.2023.2223709. Online ahead of print.

ABSTRACT

OBJECTIVES: Patients with ulcerative colitis (UC) have shown an increased risk for colorectal cancer, hepatobiliary, hematologic, and skin cancers, but updated long-term data is needed. This study aimed to estimate the risk of cancer in patients with UC compared to the general Norwegian population, in a population-based cohort (the IBSEN study), 30 years after diagnosis; and to identify possible risk factors associated with cancer.

METHODS: The IBSEN cohort prospectively included all incident patients between 1990 and 1993. Cancer incidence data were obtained from the Cancer Registry of Norway. The overall and cancer-specific hazard ratios (HR) were modelled using Cox regression. Standardized incidence ratios were estimated compared to the general population.

RESULTS: In total, the cohort included 519 patients, and 83 cases were diagnosed with cancer. There was no statistically significant difference in the overall cancer risk (HR = 1.01, 95% CI: [0.79-1.29]) and colorectal cancer risk (HR = 1.37, 95% CI: [0.75-2.47]) between patients and controls. The incidence of biliary tract cancer was higher than expected (SIR = 9.84, 95%CI: [3.19-20.15]), especially when UC patients suffered from primary sclerosing cholangitis. Male UC patients were also more at risk of being diagnosed with hematologic malignancies (HR = 3.48, 95% CI: [1.55-7.82]). Being prescribed thiopurines was associated with a higher risk of cancer (HR = 2.03, 95% CI: [1.02-4.01]).

CONCLUSIONS: At 30 years after diagnosis, the risk of all cancer in patients with UC was not significantly increased compared with the general population. However, the risks of biliary tract cancer and hematologic cancers were increased, particularly in male patients.

PMID:37337889 | DOI:10.1080/00365521.2023.2223709

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Nevin Manimala Statistics

Increased aridity drives post-fire recovery of Mediterranean forests towards open shrublands

New Phytol. 2023 Jun 20. doi: 10.1111/nph.19012. Online ahead of print.

NO ABSTRACT

PMID:37337839 | DOI:10.1111/nph.19012

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Nevin Manimala Statistics

Clinical Utility of CT-based Attenuation-correction in Myocardial Perfusion SPECT Imaging

Mol Imaging Radionucl Ther. 2023 Jun 20;32(2):138-145. doi: 10.4274/mirt.galenos.2022.68094.

ABSTRACT

OBJECTIVES: We aimed to investigate and compare the role of computed tomography (CT)-based attenuation-corrected images (AC) with non-attenuation-corrected images (NAC) obtained by single-photon emission computed tomography/computed tomography (SPECT/CT) myocardial perfusion imaging (MPI).

METHODS: The data of 124 patients who were applied one-day stress-rest Tc-99m sestamibi SPECT/CT MPI and who had coronary angiography (CAG) results within ±3 months were retrospectively reviewed. AC and NAC images were visually evaluated by two nuclear medicine specialists in a consensus. CAG results were used as the reference standard.

RESULTS: Specificity, sensitivity, and accuracy were calculated as 66%, 61%, 71%, 79% and 69%, 70% for AC and NAC imaging in the whole group, respectively. There was no statistically significant difference between AC and NAC images for specificity, sensitivity, and accuracy in the male and female subgroups. In the diagnosis of right coronary artery (RCA) disease, CT AC significantly increased the specificity from 87% to 96%. However, in the left anterior descending artery (LAD) region, the specificity was significantly reduced from 95% to 77%.

CONCLUSION: CT-based AC did not significantly contribute to diagnostic performance for increased specificity for the RCA and reduced specificity in the LAD region. Therefore, AC images should always be evaluated side by side with NAC images to benefit from the different advantages of both techniques.

PMID:37337825 | DOI:10.4274/mirt.galenos.2022.68094

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Nevin Manimala Statistics

Psychosocial support services to enhance well-being of orphaned and vulnerable learners in Eswatini early childhood centres and primary schools

Afr J AIDS Res. 2023 Jun 20:1-11. doi: 10.2989/16085906.2023.2203128. Online ahead of print.

ABSTRACT

In Eswatini (formerly Swaziland), the increasing number of orphans and vulnerable children due to HIV/AIDS has spurred demand for psychosocial support services. When the Ministry of Education and Training assumed responsibility for delivering psychosocial support, educators were burdened with the additional role of looking after orphans and vulnerable learners. This exploratory, sequential, mixed-methods study was employed to analyse factors that enhance the provision of psychosocial support services and the perceptions of educators towards psychosocial support delivery. The qualitative study phase entailed 16 in-depth interviews with multi-sectoral psychosocial support specialists and seven focus group discussions with orphans and vulnerable learners. In the quantitative study phase, 296 educators were surveyed. Thematic analysis was used for the qualitative data, and the quantitative data was analysed using Statistical Package for the Social Sciences version 25 software. The findings reveal problems associated with psychosocial support service delivery at strategy, policy and operational levels. The results indicate that orphans and vulnerable children are offered material support (e.g. food and sanitary pads) and spiritual support, but were rarely referred for social and psychological needs. There were no proper counselling facilities and not all teachers received relevant training in children’s psychosocial needs. Training of educators in specific psychosocial support areas was considered significant to enhance service delivery and the psychosocial well-being of the learners. Overall, accountability was difficult to establish because the administration of psychosocial support is split among the Ministry of Education and Training, the Deputy Prime Minister’s office and Tinkhundla administration. There is unequal distribution of qualified early childhood development teachers to cater for early childhood educational needs.

PMID:37337815 | DOI:10.2989/16085906.2023.2203128

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Nevin Manimala Statistics

The development of commitment: Attention for intention

Child Dev. 2023 Jun 20. doi: 10.1111/cdev.13955. Online ahead of print.

ABSTRACT

Adhering to a partially defined plan requires an intentional commitment that curbs distracting desires conflicting with the planned course of action, enabling humans to act coherently over time. Two studies (N = 50, 27 girls, ages 5-6, Han Chinese, in Hangzhou, China, 2022.02-2022.03) explored the development of commitment to partial plans in a sequential decision-making task and the underlying cognitive capacity focusing on its correlation to attentional control. Results suggest that only 6-year-olds committed to partial plans (d = .51), and children’s commitment ratio was positively correlated with the use of proactive control (r = .40). These findings indicate that intentional commitment does not develop simultaneously with intention understanding, but rather matures gradually with the development of attentional control.

PMID:37337790 | DOI:10.1111/cdev.13955

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Nevin Manimala Statistics

Association between interpregnancy interval and gestational diabetes mellitus: A cohort study of the National Vital Statistics System 2020

Int J Gynaecol Obstet. 2023 Jun 20. doi: 10.1002/ijgo.14929. Online ahead of print.

ABSTRACT

OBJECTIVE: To assess the association between interpregnancy interval (IPI) and gestational diabetes mellitus (GDM).

METHODS: Data of this retrospective cohort study were obtained from the National Vital Statistics System (NVSS) 2020. The participants were divided into different groups according to different IPI (<6, 6-11, 12-17, 18-23, 24-59 (reference), 60-119, ≥120 months). Multivariate logistic models were constructed to evaluate the association between IPI and GDM. Subgroup analysis was further performed.

RESULTS: A total of 1 515 263 women were included, with 123 951 (8.18%) having GDM. Compared with the 24-59 months group, the <6 months (odds ratio [OR] 0.64, 95% confidence interval [CI] 0.46-0.90, P = 0.009), 12-17 months (OR 0.96, 95% CI 0.94-0.98, P < 0.001), and 18-23 months (OR 0.94, 95% CI 0.93-0.96, P < 0.001) groups had a significantly lower risk of GDM, while the 60-119 months (OR 1.13, 95% CI 1.11-1.15, P < 0.001) and ≥120 months (OR 1.18, 95% CI 1.15-1.21, P < 0.001) groups had a significantly higher risk of GDM. No significant difference was observed in the risk of GDM between the 6-11 and 24-59 months groups (P = 0.542). The PI-GDM association varied across different groups of age, pre-pregnancy body mass index, pre-pregnancy smoking status, history of cesarean section, history of preterm birth, prior terminations, and parity.

CONCLUSION: An IPI of 18-23 months may be a better interval than 24-59 months in managing the risk of GDM.

PMID:37337776 | DOI:10.1002/ijgo.14929