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Nevin Manimala Statistics

Factor structure of the new Scandinavian WISC-V version: Support for a five-factor model

Scand J Psychol. 2021 Nov 9. doi: 10.1111/sjop.12780. Online ahead of print.

ABSTRACT

The fifth version of Wechsler Intelligence Scale for Children is designed to measure five distinct aspects of intelligence, incorporating a new fluid reasoning index to the four indexes of the previous fourth version. Several factor analyses, however, have failed to support the fifth factor. The Scandinavian version is the only national version not showing clear superiority for the five-factor solution in the Manual. In the present study, we analyze WISC-V protocols from a clinical sample of 237 children tested with the new Scandinavian version. We perform six confirmatory factor analyses (CFA) testing three hierarchical-, two bifactor-, and one correlated candidate factor models. The study shows that the three-factor model does not fit the data, and that all four- and five-factor models showed good fit. The four-factor bifactor model was somewhat better than the five-bifactor and hierarchical models, but the correlated five-factor model was the superior model. Finding support for five-factors in a clinical sample representative of those most probable to be tested with the test, strengthen the claim that also the Scandinavian version measure a distinct fluid factor as intended by the test owners, and thus that clinicians may use the index scores as their main level of analysis. Review of previous CFAs show that the choice of statistical methods for CFA, bifactor or hierarchical/correlated, influence whether second order factor models are better than g-factor models.

PMID:34752640 | DOI:10.1111/sjop.12780

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Nevin Manimala Statistics

Athletic Administrators’ Reporting of Emergency Preparedness Regarding Policies and Procedures in Iowa Secondary Schools

J Athl Train. 2021 Nov 1;56(11):1224-1231. doi: 10.4085/1062-6050-0494.20.

ABSTRACT

CONTEXT: Secondary schools that offer school-sponsored athletic events should follow best-practice guidelines to provide policies that promote student health and safety.

OBJECTIVE: To assess emergency preparedness from the perspective of athletic administrators (AAs) in Iowa secondary schools.

DESIGN: Cross-sectional study.

SETTING: Online survey.

PATIENTS OR OTHER PARTICIPANTS: Ninety-eight AAs from Iowa completed the survey (age = 45.33 ± 10.22 years, years as an AA = 9.37 ± 8.14, years in current role = 7.72 ± 7.09).

MAIN OUTCOME MEASURES(S): The 6-section survey contained with questions about access to athletic trainers (ATs), emergency action plans (EAPs), cardiopulmonary resuscitation (CPR), automated external defibrillators (AEDs), concussions, heat illness, and other general policies. Descriptive statistics (percentages and frequencies) were reported. Relative risk was calculated to compare schools with and those without access to ATs (P < .05).

RESULTS: Most respondents (76.5%, n = 75/98) reported their school had access to a licensed AT. The majority had a written EAP (83.3%, n = 70/84), but fewer than half (39.2%, n = 31/79) reviewed it annually and fewer than 10% (n = 6/85) reported practicing it each year. All respondents (100%, N = 78/78) stated they had an AED on campus. All respondents (N = 77/77) indicated that they were familiar with the Iowa High School Athletic Association’s (IHSAA’s) concussion policy and had a concussion guideline in place. Many respondents (95.9%, n = 71/74) described being familiar with the IHSAA’s heat illness policy, but more than half (62.1%, n = 41/66) noted they did not have a heat illness policy in place at their school.

CONCLUSIONS: Most respondents indicated their school had access to ATs, followed the state-mandated concussion guidelines, and had an AED. Although participants reported having written EAPs in place, levels of annual EAP review and practice were low. These results suggest that schools would benefit from educational opportunities to improve safety policies.

PMID:34752627 | DOI:10.4085/1062-6050-0494.20

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Nevin Manimala Statistics

Anterior Knee Pain Risk in Male and Female Military Tactical Athletes

J Athl Train. 2021 Nov 1;56(11):1180-1187. doi: 10.4085/1062-6050-0578.20.

ABSTRACT

CONTEXT: Anterior knee pain (AKP) is ubiquitous in early career military members and exacerbated during functional tasks required during military duties. Therefore, it is important to understand the risk of this condition among male and female tactical athletes in diverse military occupations.

OBJECTIVE: To assess sex and occupation with respect to the AKP risk in military members.

DESIGN: Descriptive epidemiology study.

SETTING: United States Armed Forces.

PATIENTS OR OTHER PARTICIPANTS: All military members diagnosed with anteropatellar or retropatellar pain, patellar instability, or knee tendinopathy on their initial encounter from 2006 to 2015.

MAIN OUTCOME MEASURE(S): The Defense Medical Epidemiology Database was queried for the number of individuals with AKP. Relative risk (RR) and χ2 statistics were calculated in the assessment of sex and occupational category. Regressions were calculated to determine associations between service branch, sex, and AKP across time.

RESULTS: From 2006 to 2015, a total of 151 263 enlisted and 14 335 officer service members were diagnosed with AKP. Enlisted females had an incidence rate of 16.7 per 1000 person-years compared with enlisted males’ incidence rate of 12.7 per 1000 person-years (RR = 1.32; 95% CI = 1.30, 1.34; P < .001) across all AKP diagnoses. Female officers had an incidence rate of 10.7 per 1000 person-years; male officers had an incidence rate of 5.3 per 1000 person-years (RR = 2.01; 95% CI = 1.94, 2.09). Differences in risk were also noted across military occupations for both enlisted and officer service members (P values < .05).

CONCLUSIONS: Sex and military occupation were salient factors for the AKP risk. Evaluating training requirements and developing intervention programs across military occupations could serve as a focus for future research aiming to decrease the incidence of chronic knee pain.

PMID:34752626 | DOI:10.4085/1062-6050-0578.20

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Nevin Manimala Statistics

Live yeast and yeast extracts with and without pharmacological levels of zinc on nursery pig growth performance and antimicrobial susceptibilities of fecal Escherichia coli

J Anim Sci. 2021 Nov 9:skab330. doi: 10.1093/jas/skab330. Online ahead of print.

ABSTRACT

A total of 360 weanling barrows (Line 200 ×400, DNA, Columbus NE; initially 5.6 ± 0.03 kg) were used in a 42-d study to evaluate yeast-based pre- and probiotics (Phileo by Lesaffre, Milwaukee, WI) in diets with or without pharmacological levels of Zn on growth performance and antimicrobial resistance (AMR) patterns of fecal Escherichia coli. Pens were assigned to 1 of 4 dietary treatments with 5 pigs per pen and 18 pens per treatment. Dietary treatments were arranged in a 2 × 2 factorial with main effects of yeast-based pre- and probiotics (none vs. 0.10% ActiSaf Sc 47 HR+, 0.05% SafMannan, and 0.05% NucleoSaf from d 0 to 7, then concentrations were lowered by 50% from d 7 to 21) and pharmacological levels of Zn (110 vs. 3,000 mg/kg from d 0 to 7, and 2,000 mg/kg from d 7 to 21 with added Zn provided by ZnO). All pigs were fed a common diet from d 21 to 42 post-weaning. There were no yeast ×Zn interactions or effects from yeast additives observed on any response criteria. From d 0 to 21, and 0 to 42, pigs fed pharmacological levels of Zn had increased (P < 0.001) ADG and ADFI. Fecal samples were collected on d 4, 21, and 42 from the same three pigs per pen for fecal dry matter (DM) and AMR patterns of E. coli. On d 4, pigs fed pharmacological levels of Zn had greater fecal DM (P = 0.043); however, no differences were observed on d 21 or 42. E. coli was isolated from fecal samples and the microbroth dilution method was used to determine the minimal inhibitory concentrations (MIC) of E. coli isolates to 14 different antimicrobials. Isolates were categorized as either susceptible, intermediate, or resistant based on Clinical and Laboratory Standards Institute (CLSI) guidelines. The addition of pharmacological levels of Zn had a tendency (P = 0.051) to increase the MIC values of ciprofloxacin; however, these MIC values were still well under the CLSI classified resistant breakpoint for Ciprofloxacin. There was no evidence for differences (P > 0.10) for yeast additives or Zn for AMR of fecal E. coli isolates to any of the remaining antibiotics. In conclusion, pharmacological levels of Zn improved ADG, ADFI, and all isolates were classified as susceptible to ciprofloxacin although the MIC of fecal E. coli tended to be increased. Thus, the short-term use of pharmacological levels of Zn did not increase antimicrobial resistance. There was no response observed from live yeast and yeast extracts for any of the growth, fecal DM, or AMR of fecal E. coli criteria.

PMID:34752618 | DOI:10.1093/jas/skab330

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Nevin Manimala Statistics

Joint frailty modeling of time-to-event data to elicit the evolution pathway of events: a generalized linear mixed model approach

Biostatistics. 2021 Nov 9:kxab037. doi: 10.1093/biostatistics/kxab037. Online ahead of print.

ABSTRACT

Multimorbidity constitutes a serious challenge on the healthcare systems in the world, due to its association with poorer health-related outcomes, more complex clinical management, increases in health service utilization and costs, but a decrease in productivity. However, to date, most evidence on multimorbidity is derived from cross-sectional studies that have limited capacity to understand the pathway of multimorbid conditions. In this article, we present an innovative perspective on analyzing longitudinal data within a statistical framework of survival analysis of time-to-event recurrent data. The proposed methodology is based on a joint frailty modeling approach with multivariate random effects to account for the heterogeneous risk of failure and the presence of informative censoring due to a terminal event. We develop a generalized linear mixed model method for the efficient estimation of parameters. We demonstrate the capacity of our approach using a real cancer registry data set on the multimorbidity of melanoma patients and document the relative performance of the proposed joint frailty model to the natural competitor of a standard frailty model via extensive simulation studies. Our new approach is timely to advance evidence-based knowledge to address increasingly complex needs related to multimorbidity and develop interventions that are most effective and viable to better help a large number of individuals with multiple conditions.

PMID:34752610 | DOI:10.1093/biostatistics/kxab037

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Nevin Manimala Statistics

Urinary Incontinence and Depressive Symptoms: The Mediating Role of Physical Activity and Social Engagement

J Gerontol B Psychol Sci Soc Sci. 2021 Nov 9:gbab212. doi: 10.1093/geronb/gbab212. Online ahead of print.

ABSTRACT

OBJECTIVES: This study investigates longitudinal within-person associations between urinary incontinence (UI) and depressive symptoms among older women. Drawing on activity theory, this study also adds to limited knowledge about the mediating role of physical activity and social engagement in the association between UI and depressive symptoms.

METHOD: Using six waves of a nationally representative longitudinal study of older adults in Korea between 2008 and 2018, this study examined the relationship between UI and depressive symptoms among women aged 70 and over. Fixed effects models were estimated to account for unobserved time-invariant confounding factors. Sobel mediation tests were conducted to formally test for mediation.

RESULTS: Fixed effects estimates showed that, after adjusting for a wide array of time-varying covariates, having UI is positively associated with depressive symptoms among older women (b = 0.238, p < 0.05). Results revealed that individuals who begin to experience UI tend to have less frequent social interactions and participate in fewer social activities. UI, however, is only marginally associated with a decrease in physical activity. Reductions in physical activity, social connections, and social activities jointly explain about 22% of the association between UI and depressive symptoms, rendering it statistically insignificant.

DISCUSSION: UI poses a threat to psychological well-being among older women. This is partly explained by a decrease in physical activity and disruption in social engagement. This study reaffirms the significance of the programs that promote physical and social activity among older adults.

PMID:34752603 | DOI:10.1093/geronb/gbab212

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Nevin Manimala Statistics

Assessing Pharmacists’ Views and Barriers to Providing and Billing for Pharmacist-Provided Health Care Services

J Pharm Technol. 2021 Aug;37(4):186-192. doi: 10.1177/87551225211021187. Epub 2021 Jun 4.

ABSTRACT

Background: The role of Idaho and Alaska pharmacists in providing health care services has steadily broadened over recent years. With many new pharmacist-provided health care service possibilities, this study assessed the impact of these advancements on community pharmacies. Objective: The objective of this study was to identify current pharmacist-provided health care services and pharmacist-perceived barriers to providing and billing for these services in Idaho and Alaska community pharmacies. Methods: A questionnaire was developed focusing on 2 areas: providing services and billing for services. Pharmacy students on experiential rotations administered the questionnaires to pharmacists at their rotation sites. Pharmacists at community pharmacy practice sites in Idaho and Alaska completed the questionnaire in an interview format conducted by students. Likert-type scale data were analyzed using descriptive statistics. Because the study did not include a comparator group, no power calculation was conducted. All open-response answers were analyzed independently by 2 researchers and discrepancies in coding open-ended questions were resolved by discussion with a group of 4 researchers. Results: Most pharmacists reported that they already provide non-dispensing services, desired to implement new services, and had confidence in their team’s ability to handle new services. Time and resources were the most cited barriers to providing new services; compensation, company support, and education were the most cited barriers to billing for services. Conclusions: Community pharmacists already provide non-dispensing services and many are looking to provide more services, but barriers of time, resources, compensation, company support, and education will need to be overcome to move forward.

PMID:34752574 | PMC:PMC8255977 | DOI:10.1177/87551225211021187

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Nevin Manimala Statistics

Pharmacological Management of Steroid-Induced Psychosis: A Review of Patient Cases

J Pharm Technol. 2021 Apr;37(2):120-126. doi: 10.1177/8755122520978534. Epub 2020 Dec 2.

ABSTRACT

Objective: To review the efficacy and safety of medications used in the management of steroid-induced psychosis. Data Sources: A comprehensive literature search was conducted using PubMed, MEDLINE, ProQuest, and Scopus between May and October 2020 using the following search terminology: “steroid-induced psychosis” OR “corticosteroid-induced psychosis.” Study Selection and Data Extraction: Definitive cases, as defined by the Diagnostic and Statistical Manual of Mental Disorders, 5th edition, were included in this review. Geriatric patients >65 years of age, those with a confounding neurological condition such as a traumatic brain or spinal cord injury, or those with active malignancy were excluded. Data Synthesis: A total of 13 patient cases were included in this review, representing 8 male patients and 5 female patients. The mean age at symptom presentation was 42.5 years. Six patients presented with delusions, 5 presented with hallucinations, and 2 presented with both manifestations; 12 patients were managed with an antipsychotic, with haloperidol being the most commonly prescribed, followed by risperidone. One patient was managed with lithium and clonazepam alone. All patients returned to their psychological baseline upon the discontinuation or decreased dose of steroids in combination with Pharmacological intervention, though the time to resolution of symptoms varied significantly. No notable adverse drug events associated with treatments were reported. Conclusions: Steroid-induced psychosis is a serious adverse effect of corticosteroid therapy; however, management strategies that combine a dose reduction or elimination of steroids, in combination with an antipsychotic medication, are effective in resolving this syndrome.

PMID:34752563 | PMC:PMC7953074 | DOI:10.1177/8755122520978534

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Nevin Manimala Statistics

Evaluation of Warfarin Use in Patients With Mental Health Conditions in a Rural Community Health Center System

J Pharm Technol. 2021 Feb;37(1):17-22. doi: 10.1177/8755122520960226. Epub 2020 Oct 14.

ABSTRACT

Background: Mental health conditions (MHCs) may affect a patient’s ability to comply with requirements necessary for safe warfarin use. Objective: To describe warfarin control, defined as time in therapeutic range (TTR), for patients with and without MHCs receiving care through a pharmacist-driven anticoagulation service within a rural community health center system. Methods: Retrospective cohort study of patients on warfarin between January 1, 2014, and December 31, 2017. The primary study endpoint was TTR. Secondary endpoints were the number of international normalized ratios (INRs) per 30 days, percentage of INRs within, above, and below target range, and warfarin-related adverse events. Results: A total of 79 patients were included-37 with and 42 without MHCs. Patients were mostly male (n = 47; 59.5%) and prescribed warfarin for atrial fibrillation (n = 45; 57.0%). There were no differences in overall TTR between those with (59.6%; interquartile range = 41.8-73.4) versus without (63.4%; interquartile range = 46.7-73.6) MHCs (P = .542). Secondary outcomes showed no differences in the frequency or percentage of INRs in, above, or below target range (all P > .05). However, there were about twice as many hemorrhagic complications in the group with MHCs (27% vs 11.9%; P = .149). Conclusion: Patients with MHCs experienced no difference in overall TTR as compared to patients without MHCs. However, there was a non-statistically significant reduction in TTR, which would be consistent with limited existing data and demonstrates possible reproducibility to a rural, underserved patient population. Future research is needed to validate these outcomes.

PMID:34752554 | PMC:PMC7809325 | DOI:10.1177/8755122520960226

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Nevin Manimala Statistics

Comparative Stability of Compounded Omeprazole Suspension Versus Commercial Omeprazole Kit When Stored in Oral Syringes Under Refrigerated Conditions

J Pharm Technol. 2020 Oct;36(5):179-186. doi: 10.1177/8755122520935532. Epub 2020 Jun 26.

ABSTRACT

Background: Omeprazole is a proton pump inhibitor used to manage gastrointestinal disorders. Special populations may require omeprazole to be given as an oral suspension. Objective: The purpose of this project was to compare the stability of omeprazole in the FIRST kit product to a traditionally compounded omeprazole suspension, when stored in refrigerated unit-dosed syringes. NG tube delivery of the 2 products was also investigated. Methods: Five batches of compounded omeprazole oral suspension and 5 kits of FIRST-Omeprazole were prepared to an initial concentration of 2 mg/mL. Suspensions were aliquoted into 5-mL doses in clear plastic oral syringes, and stored at 2-8 °C. Syringes from each batch were analyzed at baseline and after 7, 14, 21, and 30 days for omeprazole potency using HPLC. To assess suitability for NG tube administration, 20 mL of each suspension were administered through NG tubes (8Fr, 10Fr, and 18Fr), and percent omeprazole recovery assessed. Results: The chemical potency remained within 90-110% for 14 days and 30 days for compounded samples and FIRST-Omeprazole samples, respectively. There was a statistically significant difference in initial concentration; 1.89 mg/mL versus 1.98 mg/mL for compounded and FIRST-Omeprazole, respectively. After 30 days, FIRST-Omeprazole demonstrated 97.20% API recovery. Neither suspension experienced statistically significant loss of potency following NG tube passage. Conclusion: FIRST-Omeprazole suspension may be stored in refrigerated clear luer-lock oral syringes for 30 days. Traditionally compounded omeprazole suspension should be used within 14 days. Both suspensions are suitable for NG tube administration.

PMID:34752549 | PMC:PMC7453476 | DOI:10.1177/8755122520935532