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Nevin Manimala Statistics

Psychological Effects of Screen Time in Health Care Workers During the COVID-19 Pandemic

Prim Care Companion CNS Disord. 2021 Aug 26;23(5):21m02959. doi: 10.4088/PCC.21m02959.

ABSTRACT

Objective: As the coronavirus disease (COVID-19) outbreak is the first pandemic to occur in the modern smartphone era, people universally rely on their electronic devices to stay current on the rapidly evolving circumstances. The objective of this study was to examine how daily screen time levels affect the mental health of health care workers attempting to stay up to date on the ever-changing COVID-19-related information available to them.

Methods: Health care workers at an academic teaching hospital were asked to participate in a 12-question online-based survey between the dates of May 30, 2020, and June 3, 2020. The questions included their sex, age range, occupation, department, daily screen time, changes in screen time in the last 4 weeks, and mental health outcomes such as sleep, mood, anxiety, and difficulty controlling worry.

Results: No association was found between age, sex, occupation, and screen time. There was a statistically significant association between the type of department and daily screen time hours (P = .012). A positive trend was noted between screen time and sleep disruption (P = .09). An increase in hours in the last 4 weeks was associated with age (P = .03). A positive trend was also noted for an increase in screen hours and sleep disruption (P = .11) and anxiety (P = .10).

Conclusions: A possible explanation for our finding of screen time not being associated with mental health outcomes could be that the knowledge that information was readily available through technology provided comfort to people as the pandemic evolved and brought changes to their daily lives.

PMID:34449985 | DOI:10.4088/PCC.21m02959

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Nevin Manimala Statistics

Superior Temporal Gyrus Volumes in Patients With Social Anxiety Disorder

Prim Care Companion CNS Disord. 2021 Aug 26;23(5):20m02815. doi: 10.4088/PCC.20m02815.

ABSTRACT

Objective: To determine if superior temporal gyrus volumes are altered in patients with a social anxiety disorder.

Methods: Magnetic resonance imaging (MRI) was utilized to determine the superior temporal gyrus volume in 21 patients with a social anxiety disorder and 20 control subjects without a social anxiety disorder. The superior temporal gyrus volumes were measured by manual tracing method. The study was conducted between September 2019 and April 2020.

Results: The mean superior temporal gyrus volume for both sides was statistically significantly smaller than that of control subjects (left side: 11.38 ± 0.85 cm3 for patients and 12.73 ± 0.86 cm3 for controls, t=-5.064, P < .001; right side: 11.42 ± 0.84 mm3 for patients and 12.92 ± 0.85 cm3 for controls, t=-5.574, P < .001). Moreover, when comparing volumetric measurements for subregions, we detected that volumes of all subregions were also statistically significantly smaller than those of healthy comparisons (for both sides of the Heschl’s gyrus and planum temporale).

Conclusions: The study findings suggest that patients with social anxiety disorder seem to have smaller superior temporal gyrus volumes compared to healthy control subjects, although we do not know whether these results were in accordance with functional changes of the same region.

PMID:34449986 | DOI:10.4088/PCC.20m02815

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Nevin Manimala Statistics

Reflections on the interpretation of I(2) statistic

Rev Med Virol. 2021 Aug 27:e2286. doi: 10.1002/rmv.2286. Online ahead of print.

NO ABSTRACT

PMID:34449945 | DOI:10.1002/rmv.2286

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Nevin Manimala Statistics

Bipolar fractionated radiofrequency midface lift: A retrospective review

J Cosmet Dermatol. 2021 Aug 27. doi: 10.1111/jocd.14400. Online ahead of print.

ABSTRACT

INTRODUCTION: Midface rejuvenation is an important component of overall facial rejuvenation. Traditionally, midfacial skin laxity and volume loss have been addressed with surgical midfacial lifting and soft tissue augmentation with dermal fillers. We present a novel noninvasive approach to midface rejuvenation with a bipolar fractionated radiofrequency (FRF) device that addresses both volume loss and improves skin laxity.

METHODS: An institutional review board-approved retrospective review was performed and included subjects who received midfacial treatment with a bipolar FRF device. Follow-up photographs were objectively assessed by a blinded evaluator using a validated scale, the Facial Laxity Rating Scale. Paired t tests were used to evaluate the results for statistical significance.

RESULTS: A total of 15 subjects were included in the study. The average age was 64 and ranged from 48 to 73. The average midface laxity score prior to treatment was 5.6 and post-treatment was 6.3 (p < 0.01).

CONCLUSION: Bipolar FRF is a promising noninvasive intervention for midface rejuvenation.

PMID:34449948 | DOI:10.1111/jocd.14400

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Nevin Manimala Statistics

The effects of lemon balm (Melissa officinalis L.) on depression and anxiety in clinical trials: A systematic review and meta-analysis

Phytother Res. 2021 Aug 27. doi: 10.1002/ptr.7252. Online ahead of print.

ABSTRACT

A systematic review and a meta-analytic approach were considered to investigate the effects of lemon balm as a medicinal herb on anxiety and depression in clinical trials and its side effects. All randomized clinical trials published up to October 30, 2020 that examined lemon balm in patients with symptoms of depression or anxiety, with acute or chronic manifestations, were searched in 12 online databases. Statistical analysis was performed using RevMan software. Continuous data were analyzed using standardized mean differences. Statistical heterogeneity was assessed using Chi2 , I2 , and p value tests. Based on meta-analysis results, lemon balm significantly improved mean anxiety and depression scores compared with the placebo (SMD: -0.98; 95% CI: -1.63 to -0.33; p = 0.003), (SMD: -0.47; 95% CI: -0.73 to -0.21; p = 0.0005) respectively, without serious side effects. Current evidence suggests that lemon balm may be effective in improving anxiety and depressive symptoms, particularly in the acute setting. Due to the high level of heterogeneity between studies, results should be interpreted with caution. The small number of clinical trials and differences between their methods were the limitations of the present study. Further high-quality studies are needed to firmly establish the clinical efficacy of the lemon balm.

PMID:34449930 | DOI:10.1002/ptr.7252

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Nevin Manimala Statistics

Asymmetry of the insula-sensorimotor circuit in Parkinson’s disease

Eur J Neurosci. 2021 Aug 27. doi: 10.1111/ejn.15432. Online ahead of print.

ABSTRACT

Patients with Parkinson’s disease (PD) experience motor and non-motor symptoms, suggesting alterations of the motor and/or limbic system, or more probably of their communications. We hypothesized that the communication between the insula (part of the limbic system) and sensorimotor cortex in PD is altered and hemispheric asymmetric. Furthermore, that this asymmetry relates to non-motor symptoms, and specifically, that apathy-related asymmetry is unique to PD. To test these hypotheses, we used a novel multivariate time-frequency analysis method applied to resting-state functional MRI data of 28 controls and 25 participants with PD measured in their OFF medication state. The analysis infers directionality of coupling, that is, afferent or efferent, among four anatomical regions, thus defining directed pathways of information flow, which enables the extension of symmetry measures to include directionality. A major right asymmetry reduction of the dorsal-posterior insula efferent and a slight bilateral increase of insula afferent pathways were observed in participants with PD versus controls. Between-group pathways that correlated with mild cognitive impairments combined the central-executive and default-mode networks through the right insula. Apathy-correlated pathways of the posterior insula in participants with PD versus controls exhibited reduced right efferent and increased left afferent. Since apathy scores were comparable between the groups and effects of the other motor and non-motor symptoms were statistically removed by the analysis, the differences in apathy-correlated pathways were suggested as unique to PD. These pathways could be predictors in the pre-symptomatic phase in patients with apathy.

PMID:34449938 | DOI:10.1111/ejn.15432

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Nevin Manimala Statistics

Headache and dıstress durıng pregnancy

Int J Gynaecol Obstet. 2021 Aug 27. doi: 10.1002/ijgo.13904. Online ahead of print.

ABSTRACT

OBJECTIVE: To determine the prevalence of headache, review variables believed to be associated and assess distress levels in pregnant women.

METHODS: This is a cross-sectional study conducted on pregnant women who presented to a Training and Research Hospital in Sakarya, Turkey from 01.06.2020 to 01.12.2020. The study group consisted of 600 pregnant women who agreed to take part in the study. Chi-squared test and Logistic Regression Analysis were used to analyze the data. Statistical significance level was accepted as p ≤ 0.05.

RESULTS: The ages of pregnant women ranged from 19 to 44 with a mean age of 29.01 ± 5.27 years. Prevalence of headache during pregnancy was found to be 55.7% (n=334). The number of pregnant women under the risk of distress was found to be 144 (24.0%). There was no difference between women with and without headache and between severity of headache and prevalence of distress (p>0.05 for each).

CONCLUSION: Headache is an important health issue in pregnant women. There was no relationship between the presence and severity of headache and distress level.

PMID:34449878 | DOI:10.1002/ijgo.13904

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Nevin Manimala Statistics

Elevated seminal protein carbonyl concentration is correlated with asthenozoospermia and affects adversely the laboratory intracytoplasmic sperm injection (ICSI) outcomes

Andrologia. 2021 Aug 27:e14232. doi: 10.1111/and.14232. Online ahead of print.

ABSTRACT

Elevated concentrations of reactive oxygen species (ROS) in the semen can lead to oxidative protein damage as they react with the amino acids’ side chains in the protein, leading to the generation of carbonyl groups. This study aimed to investigate the effect of protein carbonyl (PC) concentration on sperm motility and the laboratory intracytoplasmic sperm injection (ICSI) outcomes. A total of 150 couples from the ICSI cycle were enrolled in this study and were divided into three groups (G) according to the PC concentration as following, G1 included samples with PC concentrations <0.65 nmol/mg, G2 included samples with 0.65≤PC≤2.23 nmol/mg and G3 included samples with PC>2.23 (nmol/mg). PC concentrations were measured in all semen samples, and the laboratory ICSI outcomes were evaluated for all injected oocytes. The Kruskal-Wallis p-values for the differences in the medians of sperm motility, fertilisation rate, embryo cleavage score and embryo quality score were <0.05. Furthermore, Dunn’s post hoc test showed a significant difference between all groups, p-values <0.05, except for the medians of embryo quality score between G2 and G3. In conclusion, our results showed that sperm motility and laboratory ICSI outcomes are affected negatively by higher concentrations of PC in the semen.

PMID:34449913 | DOI:10.1111/and.14232

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Nevin Manimala Statistics

Bi-directional Mendelian randomisation analysis of the relationship between circulating vitamin D concentration and colorectal cancer risk

Int J Cancer. 2021 Aug 27. doi: 10.1002/ijc.33779. Online ahead of print.

ABSTRACT

Epidemiological evidence is consistent with a protective effect of vitamin D against colorectal cancer (CRC), but the observed strong associations are open to confounders and potential reverse causation. Previous Mendelian randomisation (MR) studies were limited by poor genetic instruments and inadequate statistical power. Moreover, whether genetically higher CRC risk can influence vitamin D level, namely the reverse causation, still remains unknown. Herein, we report the first bi-directional MR study. We employed 110 newly-identified genetic variants as proxies for vitamin D to obtain unconfounded effect estimates on CRC risk in 26 397 CRC cases and 41 481 controls of European ancestry. To test for reserve causation, we estimated effects of 115 CRC-risk variants on vitamin D level amongst 417 580 participants from the UK Biobank. The causal association was estimated using the random-effect inverse-variance weighted (IVW) method. We found no significant causal effect of vitamin D on CRC risk (IVW estimate OR: 0.97, 95%CI: 0.88-1.07, P = 0.565). Similarly, no significant reverse causal association was identified between genetically increased CRC risk and vitamin D levels (IVW estimate β: -0.002, 95% CI: -0.008 to 0.004, P = 0.543). Stratified analysis by tumour sites did not identify significant causal associations in either direction between vitamin D and colon or rectal cancer. Despite the improved statistical power of this study, we found no evidence of causal association of either direction between circulating vitamin D and CRC risk. Significant associations reported by observational studies may be primarily driven by unidentified confounders.

PMID:34449871 | DOI:10.1002/ijc.33779

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Nevin Manimala Statistics

Bilateral Oophorectomy and Rate of Colorectal Cancer: A Prospective Cohort Study

Int J Cancer. 2021 Aug 27. doi: 10.1002/ijc.33776. Online ahead of print.

ABSTRACT

Worldwide, colorectal cancer is the second most common cancer and third cause of cancer death in women. Estrogen exposure has been inversely associated with colorectal cancer. Oophorectomy reduces circulating estrogen, but the effect on colorectal cancer remains uncertain. The aim of this study was to examine the association between unilateral and bilateral oophorectomy and subsequent risk of colorectal cancer, and whether this association varied by menopausal status at time of oophorectomy, use of hormone replacement therapy (HRT) at baseline, hysterectomy and baseline body mass index (BMI). The study included 25 698 female nurses (aged ≥45 years) participating in the Danish Nurse Cohort. Nurses were followed from baseline until date of colorectal cancer, death, emigration or end of follow-up at 31st December 2018, whichever came first. We examined the association between oophorectomy and colorectal cancer (all ages and stratified by menopausal status). The potential modifying effects of hysterectomy, HRT use at baseline and BMI were investigated. During 542 140 person-years of follow-up, 863 (3.4%) nurses were diagnosed with colorectal cancer. Bilateral oophorectomy was associated with a 79% increased colorectal cancer rate, adjusted rate ratio (aRR) (95% confidence interval, CI): 1.79 (1.33; 2.42). Effect estimates following unilateral oophorectomy also showed higher rate of colorectal cancer, although less pronounced and non-statistically significant (aRR) (95% CI): 1.25 (0.86;1.82). Similar results were seen when stratifying by menopausal status. The association was not modified by baseline HRT use, hysterectomy or BMI. Oophorectomy was associated with increased rate of colorectal cancer, with highest rates among women with bilateral oophorectomy. This article is protected by copyright. All rights reserved.

PMID:34449872 | DOI:10.1002/ijc.33776