Categories
Nevin Manimala Statistics

Dairy farmer practices and attitudes relating to pasture-based and indoor production systems in Scotland

PLoS One. 2022 Feb 3;17(2):e0262268. doi: 10.1371/journal.pone.0262268. eCollection 2022.

ABSTRACT

This study assesses the practices and views of Scottish dairy farmers relating to pasture-based and indoor systems. There are the debates about the environmental, economic and animal welfare implications of these systems. Indoor dairy farming is a contentious practice among the public. While this controversy is sometimes represented as a lack of public understanding, there is a need for more research on farmers’ views to facilitate discussion in the industry. A survey was posted to 909 dairy farmers in Scotland with questions about their grazing practices and attitudes to grazing and indoor systems. 254 surveys were completed, online and in paper form. There was a 26% response rate to the paper version of the survey. The results showed that 19% of respondents housed some or all the cows all year-round. 68% agreed or strongly agreed that cows should graze for part of the year and 51% agreed or strongly agreed that welfare was better if cows grazed for part of the year. These views coexisted with the view that management was more important than the type of system for determining profitability or welfare outcomes (83% and 82% strongly agree or agree respectively). Respondents whose system involved grazing and respondents who had spent longer in farming were moderately more likely to agree that cows should have access to pasture, and slightly less likely to agree that management was more important than system for determining welfare outcomes. The results indicate that the picture is more complicated than the public rejecting indoor dairy farming and those in the industry accepting it. The results showed that a majority preference for cows to graze co-existed with the view that management was more important than system. In terms of industry and policy recommendations, the research suggests that measures should be taken to safeguard farmers’ ability to graze through for instance research and advisory support on grazing; ensuring different systems are not penalised in the development of dairy sector environmental measures and recommendations; and potentially supply chains that financially rewards farmers for grazing.

PMID:35113885 | DOI:10.1371/journal.pone.0262268

Categories
Nevin Manimala Statistics

Psychosis risk among pregnant women in Ghana

PLoS One. 2022 Feb 3;17(2):e0263011. doi: 10.1371/journal.pone.0263011. eCollection 2022.

ABSTRACT

INTRODUCTION: Psychotic illness, although is rare, has been reported in the perinatal period. Individuals diagnosed with psychotic illness tend to first exhibit psychotic-like experiences (PLEs), defined as subclinical psychotic symptoms that occur outside the context of sleep or drug use. However, there is a paucity of empirical data on PLEs in pregnancy to advance scholarly discourse and support professional practice. The current study investigated the prevalence and correlates of PLEs among pregnant women in Ghana, a West African state.

DESIGN: A cross-sectional survey design was used to collect data from 702 pregnant women who responded to measures of PLEs, COVID-19 concerns and behavioral maladies such as anxiety and depressive symptoms. Descriptive and inferential statistics, namely chi square, exploratory factor analysis, MANOVA and multinomial logistic regression were used to analyze the data.

RESULTS: The results showed that 54.2%, 27.3% and 18.5% of participants were at no/low, moderate and high risk for psychosis, respectively. A total of 44.4% participants were not distressed by PLEs, whereas 32.2% and 23.4% were a bit/quite and very distressed, respectively. Psychosis risk was elevated among pregnant women who were more concerned about the COVID-19 effects, scored high in suicidal ideation, depressive symptoms and sleep difficulties.

CONCLUSION: The study showed that psychosis risk is present in pregnancy.

IMPLICATIONS: Screening for psychosis risk in pregnancy should be prioritized for pregnant women with behavioral maladies, including suicidal tendencies, depressive symptoms, sleep difficulties and heightened concerns about COVID-19.

PMID:35113887 | DOI:10.1371/journal.pone.0263011

Categories
Nevin Manimala Statistics

The evolution of mendelian randomization for investigating drug effects

PLoS Med. 2022 Feb 3;19(2):e1003898. doi: 10.1371/journal.pmed.1003898. eCollection 2022 Feb.

ABSTRACT

Dipender Gill and Stephen Burgess discuss the accompanying study by James Yarmolinsky and colleagues investigating the associations between genetically-proxied inhibition of antihypertensive drug targets and risk of common cancer subtypes using Mendelian randomization.

PMID:35113864 | DOI:10.1371/journal.pmed.1003898

Categories
Nevin Manimala Statistics

A field-based general framework to simulate fluids in parallel and the framework’s application to a matrix acidization simulation

PLoS One. 2022 Feb 3;17(2):e0261134. doi: 10.1371/journal.pone.0261134. eCollection 2022.

ABSTRACT

On the basis of numerous fluid simulation experiences, researchers have discovered that many common operations can be abstracted to form a general fluid simulation framework. These operations include the discretization of equations and variables, the computation of the coefficients, the assembly of the linear or nonlinear systems, the solving of the systems, etc. Furthermore, all of the operations can be attributed to the operations “in the field”, which is an abstract concept derived from the equations and variables. Thus, fluid simulations can be performed under a field-based general framework. Moreover, in response to the urgent need for large-scale fluid simulations, parallelism is integrated into the framework. Due to the convenience of the field operations, parallelization of the framework can be realized on both the OpenMP and MPI levels. In other words, because of the newly defined “fields”, a series of operations in fluid simulations can be simplified and unified. However, very few studies have noted this advantage, and therefore, this work attempts to fill the void. With the help of a field-based general framework, it is anticipated that the parallel codes of fluid simulations can be generated easily and quickly. As an application of the general framework, a parallel 3D simulator for matrix acidization called Masor is developed. The simulation results are regarded as physically reasonable by many studies, which verifies the correctness and effectiveness of the general framework. In addition, it is noteworthy that the parallel performance of Masor is decided by a solver.

PMID:35113859 | DOI:10.1371/journal.pone.0261134

Categories
Nevin Manimala Statistics

ABO blood type and clinical characteristics of patients with ulcerative colitis: A hospital-based study in central Taiwan

PLoS One. 2022 Feb 3;17(2):e0260018. doi: 10.1371/journal.pone.0260018. eCollection 2022.

ABSTRACT

BACKGROUND: The variations in ABO blood groups are reported to be associated with multiple disorders, including ulcerative colitis (UC). We aimed to investigate the distribution of ABO blood groups in UC patients and explore its impact on disease severity.

METHODS: We retrospectively collected 129 UC patients diagnosed at our hospital between January 2000 and November 2019. Clinical characteristics, ABO blood groups, and operation rates were analyzed.

RESULTS: The mean diagnostic age of patients was 38.97 years. Males accounted for the majority of all patients (62.8%). Of 129 patients, 43 (33.3%) were blood type O, 41 (31.8%) were blood type A, 38 (29.5%) were blood type B, and 7 (5.4%) were blood type AB. Although our patients had higher ratio of blood type A comparing our general population, there was no statistically significant association of ABO blood types distribution between these two groups (p = 0.1906). In the subgroup analysis, there were no significant difference of disease locations and operation rates between different ABO blood groups. Furthermore, blood type A patients had higher serum hemoglobin (Hb) levels compared to blood type O patients (13.31 g/dL vs. 12.30 g/dL, p = 0.0347). Blood type A patients had lower serum erythrocyte sedimentation rate (ESR) levels compared to blood type O patients (12.46 mm/hour vs. 21.5 mm/hour, p = 0.0288). Blood type O had higher serum ESR levels compared to non-O groups (p = 0.0228). In the ABO blood groups and mean diagnostic age (≤ 40 years or > 40 years), there were no statistically significant difference between these two age groups, p = 0.5515.

CONCLUSIONS: Our results showed ABO blood groups are not associated with UC in spite of a higher ratio of blood type A in our patients. Blood type O patients had higher serum ESR levels; however, blood type A patients had higher Hb levels.

PMID:35113863 | DOI:10.1371/journal.pone.0260018

Categories
Nevin Manimala Statistics

Predictors of percutaneous access-related complications in aortic endovascular procedures – ‘real-world’ insights and a comparison to open access

Int Angiol. 2022 Feb 3. doi: 10.23736/S0392-9590.22.04799-X. Online ahead of print.

ABSTRACT

BACKGROUND: Percutaneous endovascular aneurysm repair (PEVAR) is becoming increasingly popular due to fewer access-related complications, shorter procedural times and length of stay (LOS). Our aim was to explore factors associated with access-related complications and their impact on procedural time and LOS.

METHODS: We retrospectively analysed consecutive aorto-iliac endovascular procedures in a tertiary hub comprising 2 institutions and 18 consultant vascular surgeons and interventional radiologists between 2016 – 2017. Access-related complications were defined as: bleeding requiring cutdown or return to theatre, acute limb ischaemia or common femoral artery (CFA) pseudoaneurysm requiring intervention and wound infection or dehiscence needing hospitalization.

RESULTS: Of 511 patients, 354 (69%) had a percutaneous approach via 589 CFA access sites. In this percutaneous group, access-related complications occurred in 11% of sites (65/589); Their rate varied with procedure type ranging between 3.6% to 17.6%. The most common complication was bleeding due to closure device failure in 8.5% (50/589) of access sites. When uncomplicated, percutaneous interventions were faster compared to open surgical access (p<0.0001). Operation time and median LOS (3 vs. 2 days) were longer for elective standard EVAR patients experiencing access-related complications (p=0.033). In the percutaneous group, multivariate regression analysis demonstrated significant associations between accessrelated complications and eGFR (odds ratio (OR) 0.984 [0.972-0.997], p=0.014), CFA depth (OR 1.026 [1.008-1.045], p=0.005), device used (Prostar vs. Proglide (OR 2.177 [1.236-3.832], p=0.007) and procedural type (complex vs. standard EVAR) (OR 2.017 [1.122-3.627], p=0.019). We developed a risk score which had reasonably good predictive power (C-statistic 0.716 [0.646-0.787],p<0.0001) for avoiding access complications.

CONCLUSIONS: Physiological (low eGFR level), anatomical (increased CFA depth) and technical factors (choice of device and complex procedures) were identified as predictors of access-related complications in this large retrospective series. These are important for safe selection of patients that would benefit from percutaneous access.

PMID:35112825 | DOI:10.23736/S0392-9590.22.04799-X

Categories
Nevin Manimala Statistics

Patient-reported Experience Measures in Deprescribing for Hospitalised Older Patients: A Prospective, Multicentre, Observational Study

Intern Med J. 2022 Feb 3. doi: 10.1111/imj.15707. Online ahead of print.

ABSTRACT

BACKGROUND: Hospitalisation provides an opportunity for medication review and deprescribing. Patient-reported experience measures (PREM) for deprescribing in older patients in-hospital are not well-described.

AIM: To pilot test and describe PREM for deprescribing in older patients, compare PREM by patient characteristics, and investigate patients’ awareness of medication changes on hospital discharge.

METHODS: This prospective, multicentre, observational cohort study at two tertiary hospitals in Sydney, Australia, evaluated the PREM questionnaire developed by the NSW Therapeutic Advisory Group. It was completed by patients (or their next of kin) recruited from acute geriatric medicine and orthogeriatric services. Association with nine patient characteristics was analysed using the chi-square test and multivariable regression. Awareness of medication changes and test-retest reliability were analysed using descriptive statistics.

RESULTS: Overall, 201 participants completed the questionnaire, with 170 eligible for analysis; 34/170 (20%) were aware of reduction or cessation of their usual medications on discharge and reported involvement in decision making and receiving enough information to reduce or stop one or more of their usual medications (positive PREM). Independent predictors of positive PREM included respondent (next of kin), hospital (Hospital 1), language (English), and specialty (acute geriatric medicine). Overall, 92 of 155 (59.4%) patients with medication changes were aware of those changes on hospital discharge.

CONCLUSIONS: These PREMs are a feasible tool to examine older patients’ experiences of deprescribing in-hospital and may be applied to evaluate interventions to improve awareness, shared decision making, and provision of information when deprescribing for older patients. This article is protected by copyright. All rights reserved.

PMID:35112777 | DOI:10.1111/imj.15707

Categories
Nevin Manimala Statistics

Effect of non-contact boxing training on the frequency and timing of anticipatory postural adjustments in healthy adults

J Sports Med Phys Fitness. 2022 Feb 3. doi: 10.23736/S0022-4707.22.13495-X. Online ahead of print.

ABSTRACT

BACKGROUND: The experiment tested the effect of non-contact boxing training on the frequency and timing of anticipatory postural adjustments (APAs) resulting from self-induced postural perturbations in healthy adults.

METHODS: The 8-week non-contact boxing intervention study involved 33 healthy adults between 18 and 27 years of age who had no boxing experience (control group = 17 participants, boxing group = 16 participants). Pretests and posttests utilized rapid bilateral arm raising as a focal movement to elicit APAs. EMG in the anterior deltoid, thoracic and lumbar erector spinae, semitendinosus and soleus muscles was recorded. The boxing group completed twenty 90-min non-contact boxing training sessions over 8 weeks, whereas the control group kept physical activity consistent during the intervention period.

RESULTS: Non-contact boxing training caused APAs to become more frequent during the focal movement, in comparison to the control group, in the soleus and also in the semitendinosus after an outlier was removed. Non-contact boxing training caused earlier APA onset during the focal movement, in comparison to the control group, in the lumbar erector spinae after an outlier was removed.

CONCLUSIONS: Non-contact boxing training had a modest positive effect on the frequency and timing of APAs resulting from self-induced postural perturbations in healthy adults.

PMID:35112818 | DOI:10.23736/S0022-4707.22.13495-X

Categories
Nevin Manimala Statistics

Optimal dynamic treatment regime estimation using information extraction from unstructured clinical text

Biom J. 2022 Feb 3. doi: 10.1002/bimj.202100077. Online ahead of print.

ABSTRACT

The wide-scale adoption of electronic health records (EHRs) provides extensive information to support precision medicine and personalized health care. In addition to structured EHRs, we leverage free-text clinical information extraction (IE) techniques to estimate optimal dynamic treatment regimes (DTRs), a sequence of decision rules that dictate how to individualize treatments to patients based on treatment and covariate history. The proposed IE of patient characteristics closely resembles “The clinical Text Analysis and Knowledge Extraction System” and employs named entity recognition, boundary detection, and negation annotation. It also utilizes regular expressions to extract numerical information. Combining the proposed IE with optimal DTR estimation, we extract derived patient characteristics and use tree-based reinforcement learning (T-RL) to estimate multistage optimal DTRs. IE significantly improved the estimation in counterfactual outcome models compared to using structured EHR data alone, which often include incomplete data, data entry errors, and other potentially unobserved risk factors. Moreover, including IE in optimal DTR estimation provides larger study cohorts and a broader pool of candidate tailoring variables. We demonstrate the performance of our proposed method via simulations and an application using clinical records to guide blood pressure control treatments among critically ill patients with severe acute hypertension. This joint estimation approach improves the accuracy of identifying the optimal treatment sequence by 14-24% compared to traditional inference without using IE, based on our simulations over various scenarios. In the blood pressure control application, we successfully extracted significant blood pressure predictors that are unobserved or partially missing from structured EHR.

PMID:35112726 | DOI:10.1002/bimj.202100077

Categories
Nevin Manimala Statistics

Clonidine is better than zopiclone for insomnia treatment in chronic pain patients

J Clin Sleep Med. 2022 Feb 4. doi: 10.5664/jcsm.9930. Online ahead of print.

ABSTRACT

STUDY OBJECTIVES: Chronic pain is associated with insomnia. The objective of this clinical study is to compare the efficacy and safety of different prescribed doses of zopiclone and clonidine; for the management of insomnia in patients with chronic pain.

METHODS: A prospective observational crossover study of 160 consenting adult patients who underwent pain management. For insomnia treatment, each patient ingested different prescribed doses of zopiclone or clonidine on alternate nights. Each patient used a special validated sleep diary to collect data including pain score, sleep scores, sleep duration, sleep medication dose, and adverse effects. Each patient completed the diary for 3 continuous weeks. Pain was measured using the numeric pain rating scale. Sleep score was measured using the Likert sleep scale. A change in the pain or sleep scores by 2-points was considered significant. Of the 160 study participants, 150 (93.8%) completed the study successfully; and their data were analyzed. Data were analyzed with IBM SPSS Statistics 25 (IBM Corp, Armonk, NY); using Student’s t-test, ANOVA, Pearson Chi-square test, and regression analysis. P-value <0.05 was considered significant.

RESULTS: Pain score was lower with clonidine than zopiclone (p=0.025). Time to fall asleep was shorter with clonidine than zopiclone (p=0.001). Feeling rested on waking in the morning was better with clonidine than zopiclone (p=0.015). Overall sleep quality was better with clonidine than zopiclone (p=0.015). Total Likert sleep score was better with clonidine than zopiclone (p=0.005). Total sleep duration was better with clonidine than zopiclone (p=0.013). Adverse effects were commoner with zopiclone; including collapse, fall, confusion, amnesia, mood disorder, hallucination, nightmare, nocturnal restlessness, locomotor dysfunction, hunger, nausea and headache. Minor adverse effect of dry mouth was commoner with clonidine.

CONCLUSIONS: Clonidine is significantly better than zopiclone regarding sleep quality, analgesia, tolerability profile, and patient safety. Further studies will be beneficial to compare clonidine with other insomnia medications.

PMID:35112665 | DOI:10.5664/jcsm.9930