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Anti – Dense Fıne Speckled (DFS) Antibody: its staınıng pattern in indirect immunofluorescence and its clinical relevance

Rom J Intern Med. 2021 Jul 31. doi: 10.2478/rjim-2021-0029. Online ahead of print.

ABSTRACT

BACKGROUND: Dense fine speckled (DFS) pattern defined by very intense, heterogeneous speckled staining of nucleoplasms of interphase HEp-2 cells and chromosomal areas of metaphase cells. The association of Anti-DFS70 and rheumatologic signs, symptoms, and diagnosis were evaluated.

METHODS: One-hundred-eight anti-DFS70 positives who consecutively admitted Rheumatology clinic between January-June 2020 were analyzed. The clinical and laboratory findings of positives for anti-DFS70 antibody were compared with those with DFS pattern ANA IFA staining rates. Also, anti-DFS70 positivity rates and their correlation with the DFS staining pattern were analyzed retrospectively in 1016 CTD patients.

RESULTS: The most common complaint was joint pain seen in 77(71.3%) and the most common laboratory abnormality was RF-positivity observed in 10/108(9.3%) who had anti-DFS70 positivity. The most common ANA staining pattern was DFS (72/108;66,7%); one-third had other than DFS. No statistical significance was found for the association of any of the rheumatological complaints and laboratory findings with the DFS70 staining pattern. ANA analysis was performed in a total of 964/1016(94.88%) CTD patients and 44 (4.56%) of these positive for anti-DFS70. The correlation coefficient showed good correlations between the DFS pattern staining and anti-DFS70 antibody positivity (r=+0.773, p<0.001).

CONCLUSIONS: Anti-DFS70-positives have a low rate of CTD. A low anti-DFS70 positivity rate was observed in patients with CTD. As such, it can be considered that anti-DFS70 does not predict CTD or even excludes it.

PMID:34333888 | DOI:10.2478/rjim-2021-0029

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Continuous reference curves for common hematology markers in the CALIPER cohort of healthy children and adolescents on the Sysmex XN-3000 system

Int J Lab Hematol. 2021 Aug 1. doi: 10.1111/ijlh.13670. Online ahead of print.

ABSTRACT

INTRODUCTION: Clinicians and healthcare professionals rely heavily on health-associated standards, such as reference intervals (RIs), for appropriate laboratory test result interpretation. RIs are commonly partitioned into discrete age/sex bins based on statistical and/or clinical significance. In pediatric hematology, such partitioning does not adequately represent complex variation in analyte concentrations throughout maturation. The objective of this study was to establish continuous RIs for common hematological parameters in the healthy pediatric Canadian Laboratory Initiative on Pediatric Reference Intervals (CALIPER) cohort.

METHODS: Data from healthy CALIPER children and adolescents (6 months-<19 years) were used to generate continuous RIs (ie, 2.5th and 97.5th quantiles) for 19 hematological parameters. Continuous curves were statistically established with nonparametric quantile regressions. Flagging rate analysis was completed for the established continuous upper and lower reference limits and subsequently compared to previously published discrete CALIPER reference intervals for all parameters.

RESULTS: Continuous RIs were established for 19 hematology parameters, where seven required sex-specific reference curves. Based on flagging rate assessment, continuous RIs appear to more accurately estimate hematological reference limits over the pediatric age range, especially for analytes with complex age- and sex-specific reference value patterns.

CONCLUSIONS: This is the first study to generate continuous RIs for a breadth of hematological markers in a healthy pediatric Canadian population. The increased power of continuous reference intervals to accurately estimate the complex relationship between hematological analyte concentration and age during a time of extensive growth and development is expected to improve laboratory test result interpretation and, subsequently, pediatric clinical decision-making.

PMID:34333858 | DOI:10.1111/ijlh.13670

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Psychological effects of the COVID-19 pandemic: Perceived stress, anxiety, work-family imbalance, and coping strategies among healthcare professionals in Khartoum state hospitals, Sudan, 2021

Brain Behav. 2021 Aug 1. doi: 10.1002/brb3.2318. Online ahead of print.

ABSTRACT

BACKGROUND: The 2019 novel coronavirus (COVID-19) is highly contagious and can spread a pandemic, so it is related to serious health issues and major public concerns, and is considered by the medical community to be the greatest concern because it is the greatest risk of infection.

OBJECTIVE: To identify and assess the psychological effects of the COVID-19 pandemic on healthcare professionals in Khartoum state hospitals 2021.

MATERIALS AND METHODS: Generalized Anxiety Scale (GAD-7), Perceived Stress Scale (PSS-10), and Work-Family Balance Measure Scale were used to assess the psychological impact of doctors and nurses working in four big hospitals in Sudan, by an online questionnaire, analyzed by the statistical package for social science (SPSS) during February.

RESULTS: Most of the participants had minimal to mild anxiety according to GAD-7 score, 121 (35.2%) and 103 (29.9%), respectively. Using PSS-10, the cutoff point was determined as 19 as the mean for total score was 19.2 ± 6.2, accordingly, more than half had high levels of stress (scored 19 and above) 189 (54.9%). For the Work-Family Balance Scale, 10 was regarded as the cutoff point. There was a significant association between specialty and stress level p-value .032. No significant correlations were found between age and stress level, neither between age and anxiety level (r -.100, p-value .064 and r = -.022, p-value .683, respectively).

CONCLUSION: More than half of healthcare professionals (54.9%) showed high levels of stress. Most of the healthcare professionals had poor work-family balance (60.2%).

PMID:34333876 | DOI:10.1002/brb3.2318

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A split-face clinical trial of conventional red-light photodynamic therapy versus daylight photodynamic therapy for acne vulgaris

J Cosmet Dermatol. 2021 Aug 1. doi: 10.1111/jocd.14359. Online ahead of print.

ABSTRACT

BACKGROUND: Photodynamic therapy (PDT) is considered an effective treatment for acne vulgaris. A significant drawback is pain during illumination. Daylight PDT (DL-PDT) is more tolerable.

OBJECTIVE: To assess and compare the efficacy and tolerability of DL-PDT and C-PDT for acne vulgaris through a prospective split-face trial.

METHODS AND MATERIALS: Fifteen patients underwent 4 treatment sessions at 3-week intervals. First, 5-aminolevulinic acid (ALA) was applied to the entire face, after which the face was divided into 2 symmetrical areas: The right side was exposed to sunlight, and the left half was illuminated with red light. Photographs were obtained and evaluated by two dermatologists blinded to the study protocol. The patients reported side effects and downtime.

RESULTS: There was a statistically significant decrease in the number and percent change of inflammatory and non-inflammatory lesions on both sides. Adverse effects were markedly decreased on the DL-PDT side compared to the C-PDT side (p < .01). The average downtime duration was longer for the C-PDT side (p < .001).

CONCLUSION: DL-PDT was at least as effective as C-PDT with fewer adverse effects and a shorter downtime duration.

PMID:34333844 | DOI:10.1111/jocd.14359

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Assessing mental health status among Iranian healthcare workers in times of the COVID-19 pandemic: A web-based cross-sectional study

Brain Behav. 2021 Aug 1. doi: 10.1002/brb3.2304. Online ahead of print.

ABSTRACT

OBJECTIVES: The present study was conducted to assess 3(HCWs) during the COVID-19 pandemic.

METHODS: A total number of 7626 HCWs were included in this web-based cross-sectional study, via the convenience sampling technique. To collect the required data, the sociodemographic characteristics information form, the Depression Anxiety Stress Scale-21 (DASS-21), and the Corona Disease Anxiety Scale (CDAS) were also employed. In addition, data analysis was performed using the SPSS Statistics software (ver. 24), as well as descriptive statistics, Chi-square test (χ2 ), and univariate/multivariate logistic regression models.

RESULTS: The CDAS results revealed that 47.9% and 70.5% of the HCWs had experienced moderate levels of physical and psychological anxiety, respectively. Based on the DASS results, 44.8%, 43%, and 34.8% of the HCWs had been subjected to depression, anxiety, and stress symptoms during the COVID-19 pandemic, respectively. The logistic regression models correspondingly showed that depression among the HCWs was significantly correlated with risk factors, such as the age groups of 20-30 years (p = .001), 31-40 years (p = .006), female HCWs (p> .001), history of physical illnesses (p = .004), and history of psychiatric disorders (p> .001). Moreover, factors including the age groups of 20-30 years (p < .001), 31-40 years (p < .001), 41-50 years (p < .001), female HCWs (p> .001), history of physical illnesses (p < .001), and history of psychiatric disorders (p>.001) were assumed as significant predictors of anxiety in these individuals. Besides, factors such as the age groups of 20-30 years (p = .002), 31-40 years (p = .004), female HCWs (p>.001), occupation (p = .016), history of physical illnesses (p < .001), and history of psychiatric disorders (p> .001) could significantly predict the prevalence rate of stress in the HCWs in times of this crisis.

CONCLUSION: Given the importance of mental health status among HCWs during the COVID-19 pandemic, health administrators and policymakers of the Ministry of Health and Medical Education in Iran are suggested to provide psychological screening and supportive care programs for HCWs with the aim of enhancing their mental health and successful coping with critical circumstances.

PMID:34333852 | DOI:10.1002/brb3.2304

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Landscape-level variation in Bt crops predict Helicoverpa zea (Lepidoptera: Noctuidae) resistance in cotton agroecosystems

Pest Manag Sci. 2021 Aug 1. doi: 10.1002/ps.6585. Online ahead of print.

ABSTRACT

BACKGROUND: Helicoverpa zea (Boddie) damage to Bt cotton and maize has increased due to widespread Bt resistance across the USA Cotton Belt. Our objective was to link Bt crop production patterns to cotton damage through a series of spatial and temporal surveys of commercial fields to understand how Bt crop production relates to greater than expected H. zea damage to Bt cotton. To do this, we assembled longitudinal cotton damage data that spanned the Bt adoption period, collected cotton damage data since Bt resistance has been detected, and estimated local population susceptibility using replicated on-farm studies that included all Bt pyramids marketed in cotton.

RESULTS: Significant year effects of H. zea damage frequency in commercial cotton were observed throughout the Bt adoption period, with a recent damage increase after the year 2012. Landscape-level Bt crop production intensity over time was positively associated with the risk of H. zea damage in two- and three-toxin pyramided Bt cotton. Helicoverpa zea damage also varied across Bt toxin types in spatially replicated on-farm studies.

CONCLUSIONS: Landscape-level predictors of H. zea damage in Bt cotton can be used to identify heightened Bt resistance risk areas and serves as a model to understand factors that drive pest resistance evolution to Bt toxins in the southeastern United States. These results provide a framework for more effective insect resistance management (IRM) strategies to be used in combination with conventional pest management practices that improve Bt trait durability while minimizing the environmental footprint of row crop agriculture. This article is protected by copyright. All rights reserved.

PMID:34333843 | DOI:10.1002/ps.6585

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An evaluation of the repeatability of electric pulp sensibility tests

Aust Endod J. 2021 Aug 1. doi: 10.1111/aej.12552. Online ahead of print.

ABSTRACT

The accuracy, reliability and reproducibility of electric pulp tests (EPT) have been investigated but there is conflicting information about their repeatability. The aim of this study was to investigate whether EPT are repeatable over time. EPT results from 180 healthy teeth in 39 patients with 2-10 readings per tooth (total 692 readings) were analysed. Single measures intraclass correlation coefficients (ICC) ranged from 0.776 to 0.845 in teeth with 2-7 repeated measures (P < 0.001), indicating good repeatability. With eight or more measures per tooth, the ICC was low, indicating poor repeatability over longer follow-up times, but only seven teeth in two subjects were included in this analysis. The Pearson correlation showed no statistically significant correlation for 2-7 readings but when all readings were included, there was a statistically significant negative correlation. Hence, EPT has good repeatability.

PMID:34333842 | DOI:10.1111/aej.12552

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In vitro study to evaluate the antimicrobial activity of various multifunctional cosmetic ingredients and chlorphenesin on bacterial species at risk in the cosmetic industry

J Appl Microbiol. 2021 Aug 1. doi: 10.1111/jam.15245. Online ahead of print.

ABSTRACT

AIMS: We evaluated the activity of the preservative chlorphenesin and of four antimicrobial cosmetic multifunctional ingredients against various strains of Gram-negative and Gram-positive human opportunistic pathogens.

METHODS AND RESULTS: Growth kinetics, modeling growth parameters and statistical analyses enabled comparing bacterial behavior in the presence and in the absence of compound. Whatever compound tested (i.e. chlorphenesin, phenylpropanol, hexanediol, ethylhexylglycerin, hydroxyacetophenone), and strain origin (i.e. clinical versus industrial), the growth of 42 strains belonging to Acinetobacter spp., Burkholderia cepacia complex, and Stenotrophomonas maltophilia, was totally inhibited. On the opposite all of the P. aeruginosa strains (n=13) as well as 4 and 6 out of 10 strains of Pluralibacter gergoviae grew in the presence of chlorphenesin and ethylhexylglycerin, respectively. Some P. gergoviae and Staphylococcus hominis strains withstand hydroxyacetophenone. Within a species, the different strains show variable latency phase, growth rate (r), and carrying capacity (K). They can be similar, lower, or higher than those measured in control conditions.

CONCLUSIONS: Data showed differences in the antimicrobial activity of compounds. Upon exposure, strains differed in their behavior between and within species. Whatever species and strains, compound sensitivity could not be related to antibiotic resistance.

SIGNIFICANCE AND IMPACT OF THE STUDY: Most multifunctional ingredients showed significant antimicrobial properties against the wide panel of species and strains evaluated. This will help adjusting preservation strategies in the cosmetic industry.

PMID:34333822 | DOI:10.1111/jam.15245

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Oral mucosal lesions in pregnant women: A population-based study

Oral Dis. 2021 Aug 1. doi: 10.1111/odi.13981. Online ahead of print.

ABSTRACT

OBJECTIVE: To evaluate the prevalence of oral mucosal lesions (OML) and oral self-examination and their associated factors among pregnant women from the 2015 Pelotas Birth Cohort Study, Brazil.

METHODS: Pregnant women who would deliver babies in 2015 were included in the antenatal study. Data related to demographic, socioeconomic and behavioural conditions were collected using questionnaires. Participants were also clinically assessed for oral health outcomes. The outcomes were the presence of OMLs and oral self-examination. Size, location, time of onset, and symptomatology of the lesions were collected. Descriptive and bivariate analysis, and Poisson regression were performed. P-value<0.05 was set to indicate statistical significance.

RESULTS: Data from 2,481 pregnant women were analysed. Four hundred and nine (16.5%) had at least one OML. The most prevalent lesions were exostosis (80/16.6%), coated tongue (70/14.5%) and benign oral brownish pigmentation (68/14.1%). Non-white skin colour was associated with a higher prevalence of OMLs (PR 1.3; 95% CI 1.1-1.6), while daily use of dental floss was positively associated with the prevalence of oral self-examination (PR 1.4; 95% CI 1.2; 1.5).

CONCLUSIONS: Almost 20% of pregnant women presented OML, which were more prevalent in non-white individuals. Women with better oral care were more likely to perform oral self-examination.

PMID:34333827 | DOI:10.1111/odi.13981

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Rejoinder to “Causal mediation of semicompeting risks”

Biometrics. 2021 Aug 1. doi: 10.1111/biom.13518. Online ahead of print.

NO ABSTRACT

PMID:34333767 | DOI:10.1111/biom.13518