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Nevin Manimala Statistics

Experiential Education About Patient Death Designed for Undergraduate Nursing Students

Nurs Educ Perspect. 2023 Feb 21. doi: 10.1097/01.NEP.0000000000001105. Online ahead of print.

ABSTRACT

New graduate nurses are unprepared for patient death, leading to a potential negative impact on patient care and an increase in turnover. This study investigated the use of high-fidelity simulation to teach about patient death. Senior nursing students (n = 124) were randomly assigned to rescue or failure-to-rescue scenarios. Outcomes included knowledge and emotional affect. Data analyses included comparative statistics, t-tests, and two-way analysis of variance. Both groups had equal knowledge gain. The failure-to-rescue group had significantly lower emotional affect following simulation but was equal to the rescue group following debriefing.

PMID:36877724 | DOI:10.1097/01.NEP.0000000000001105

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Nevin Manimala Statistics

Evaluating the accuracy of CAD/CAM optimized stones compared to conventional type IV stones

PLoS One. 2023 Mar 6;18(3):e0282509. doi: 10.1371/journal.pone.0282509. eCollection 2023.

ABSTRACT

This study compared the accuracy (trueness and precision) of stone models fabricated using two brands of CAD/CAM optimized stones Cerec Stone (BC) and Elite Master (EM), and a conventional type IV stone Elite Rock Fast (ERF). 30 conventional Type IV and scannable stone complete-arch models were scanned with a blue LED extraoral scanner, and root mean square values were obtained. 6 abutments were used in complete-arch models. The digital models were compared with the master model to evaluate their trueness using model superimposition with Geomagic software. Precision was determined for each case by superimposing combinations of the 10 datasets in each group. The point cloud density of each model was calculated with MeshLab software. Kruskal-Wallis and Mann-Whitney non-parametric tests were used for the statistical analysis. The trueness of the stone models was 96 μm for the BC, 88.2 μm for the EM, and 87.6 μm for the ERF. There were no significant differences between the tested dental stones (p = .768). However, the EM models (35.6 μm) were more precise than the BC (46.9 μm) and ERF (56.4 μm) models (p = .001, p < .001). EM models also showed the highest point cloud density. There were significant differences in point cloud density (p = .003). The EM models showed significant differences in precision but no significant differences in terms of trueness. Although EM was more precise and had the highest point cloud density, all models were within the clinically acceptable limit.

PMID:36877717 | DOI:10.1371/journal.pone.0282509

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Nevin Manimala Statistics

Prevalence and associated factors of delayed sputum smear conversion in patients treated for smear positive pulmonary tuberculosis: A retrospective follow up study in Sabah, Malaysia

PLoS One. 2023 Mar 6;18(3):e0282733. doi: 10.1371/journal.pone.0282733. eCollection 2023.

ABSTRACT

INTRODUCTION: Tuberculosis remains a major health problem globally and in Malaysia, particularly in the state of Sabah. Delayed sputum conversion is associated with treatment failure, drug-resistant tuberculosis and mortality. We aimed to determine the prevalence of delayed sputum conversion among smear positive pulmonary tuberculosis (PTB) patients and its associated factors in Sabah, Malaysia.

METHODS: A retrospective follow up study on all patients newly diagnosed with smear positive pulmonary tuberculosis from 2017 to 2019 was conducted at three government health clinics in Sabah, utilizing data from a national electronic tuberculosis database and medical records. Descriptive statistics and binary logistic regression were applied for data analysis. The outcome of the study was the sputum conversion status at the end of the two-month intensive treatment phase with either successful conversion to smear negative or non-conversion.

RESULTS: 374 patients were included in the analysis. Our patients were generally younger than 60 years old with no medical illness and varying proportions of tuberculosis severity as judged by radiographic appearance and sputum bacillary load upon diagnosis. Foreigners constituted 27.8% of our sample. 8.8% (confidence interval: 6.2-12.2) did not convert to smear negative at the end of the intensive phase. Binary logistic regression showed that older patients ≥60 years old (adjusted odds ratio, AOR = 4.303), foreigners (AOR = 3.184) and patients with higher sputum bacillary load at diagnosis [2+ (AOR = 5.061) and 3+ (AOR = 4.992)] were more likely to have delayed sputum smear conversion.

CONCLUSION: The prevalence of delayed sputum conversion in our study was considerably low at 8.8% with age ≥60 years old, foreigners and higher pre-treatment sputum bacillary load associated with delayed conversion. Healthcare providers should take note of these factors and ensure the patients receive proper follow up treatment.

PMID:36877714 | DOI:10.1371/journal.pone.0282733

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Nevin Manimala Statistics

Prevalence of and risk factors for overweight among adolescents of a sub-metropolitan city of Nepal

PLoS One. 2023 Mar 6;18(3):e0270777. doi: 10.1371/journal.pone.0270777. eCollection 2023.

ABSTRACT

BACKGROUND: Overweight is a global public health problem with increasing trend especially in middle to lower socioeconomic country like Nepal. The nutritional status of adolescents being shaped by socio-cultural, environmental, and economic factors has also been impacted by their food habits and level of physical activity. The current nutritional shift and rapid urbanization had emerged overweight as an additional burden for consistently prevalent undernutrition issues. So, the study aimed to identify the prevalence of and risk factors for overweight among school adolescents.

METHODS: A cross-sectional analytical study was carried out among random sample of 279 adolescents from nine schools of a Sub-metropolitan city of Nepal. The anthropometric measurement of the height and the weight were taken as per the standard. The odds ratio with a 95% CI was calculated and a p-value of ≤0.05 was considered as cut off for statistical significance by fitting into the final multivariable logistic regression.

RESULTS: The overall prevalence of overweight was obtained as 9.31% (95% CI: 6.40-13.3). The early aged adolescents were more overweight than compared to middle-aged adolescents (AOR: 0.27, CI: 0.028-2.67) and late adolescents (AOR: 0.66, CI: 0.068-6.44) respectively. Similarly, adolescents residing in rural areas had 0.35 (AOR = 0.33, CI: 0.030-3.71) odds of being overweight compared to their counterparts. Adolescents with sedentary behavior were about 4 times (AOR = 3.51, CI: 0.79-15.54) more likely of being overweight than their counterparts.

CONCLUSION: Overweight among adolescents residing in urban areas has emerged as an alarming issue due to their unhealthy lifestyle habits. It is therefore pertinent to emphasize adolescents to maintain healthy weight status through health food habits and physical activity.

PMID:36877713 | DOI:10.1371/journal.pone.0270777

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Nevin Manimala Statistics

Integrating technologies provides insight into the subsurface foraging behaviour of a humpback whale (Megaptera novaeangliae) feeding on walleye pollock (Gadus chalcogrammus) in Juan de Fuca Strait, Canada

PLoS One. 2023 Mar 6;18(3):e0282651. doi: 10.1371/journal.pone.0282651. eCollection 2023.

ABSTRACT

Subsurface foraging is an important proportion of the activity budget of rorqual whales, yet information on their behaviour underwater remains challenging to obtain. Rorquals are assumed to feed throughout the water column and to select prey as a function of depth, availability and density, but there remain limitations in the precise identification of targeted prey. Current data on rorqual foraging in western Canadian waters have thus been limited to observations of prey species amenable to surface feeding, such as euphausiids and Pacific herring (Clupea pallasii), with no information on deeper alternative prey sources. We measured the foraging behaviour of a humpback whale (Megaptera novaeangliae) in Juan de Fuca Strait, British Columbia, using three complimentary methods: whale-borne tag data, acoustic prey mapping, and fecal sub-sampling. Acoustically detected prey layers were near the seafloor and consistent with dense schools of walleye pollock (Gadus chalcogrammus) distributed above more diffuse aggregations of pollock. Analysis of a fecal sample from the tagged whale confirmed that it had been feeding on pollock. Integrating the dive profile with the prey data revealed that the whale’s foraging effort followed the general pattern of areal prey density, wherein the whale had a higher lunge-feeding rate at the highest prey abundance and stopped feeding when prey became limited. Our findings of a humpback whale feeding on seasonally energy-dense fish like walleye pollock, which are potentially abundant in British Columbia, suggests that pollock may be an important prey source for this rapidly growing whale population. This result is informative when assessing regional fishing activities for semi-pelagic species as well as the whales’ vulnerability to fishing gear entanglements and feeding disturbances during a narrow window of prey acquisition.

PMID:36877706 | DOI:10.1371/journal.pone.0282651

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Nevin Manimala Statistics

Exploring the association between self-efficacy and future utility beliefs in mathematics: A practical tutorial on correspondence analysis

PLoS One. 2023 Mar 6;18(3):e0282696. doi: 10.1371/journal.pone.0282696. eCollection 2023.

ABSTRACT

It has long been understood that there exists a strong association between a student’s belief in the future utility of mathematics and their self-efficacy in mathematics. This study re-examines this association by studying these variables based on data collected from a sample of 21,444 ninth-grade students who participated in the 2009 High School Longitudinal Study (HSLS09). The nature of the association between future utility beliefs of students in mathematics and self-efficacy of students in mathematics is explored visually using the simple correspondence analysis technique. The main feature that will be utilised from this technique is a two-dimensional graphical display, referred to as a correspondence plot. By studying the HSLS09 data, the first two axes of such a plot summarised nearly 99% of the statistically significant association that exists between a student’s beliefs in the future utility of mathematics and their mathematics self-efficacy. It is shown visually that students who strongly believe in the future importance of studying mathematics also perform strongly in the subject, while those who do not believe that there is any future utility from studying mathematics do not perform well at it. This study, therefore, suggests that mathematics ability is associated with a student’s perception of its future importance.

PMID:36877698 | DOI:10.1371/journal.pone.0282696

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Nevin Manimala Statistics

Evaluation of the efficacy of using gnri and mis as a predictor of mortality in elderly hemodialysis patients

Niger J Clin Pract. 2023 Feb;26(2):240-245. doi: 10.4103/njcp.njcp_672_22.

ABSTRACT

BACKGROUND: Malnutrition is one of the most common geriatric syndromes in hemodialysis (HD) patients. Although there is no gold standard for evaluating nutritional status in HD patients, the Subjective Global Assessment (SGA), Geriatric Nutritional Risk Index (GNRI), and Malnutrition-Inflammation Score (MIS) are widely used in clinical settings.

AIM: To examine the efficacy of using Geriatric Nutritional Risk Index (GNRI) and Malnutrition-Inflammation Score (MIS) as a predictor of mortality in elderly hemodialysis patients.

SUBJECTS AND METHODS: A retrospective cohort study was carried out in Malatya Training and Research Hospital’s Hemodialysis Unit between July 2018 and August 2022. Two hundred seventy-four elderly hemodialysis patients were included in the study. Demographic characteristics, laboratory parameters, and anthropometric measurements of the patients were reviewed. Statistical analyses were performed using the Statistical Package for the Social Sciences (SPSS) version 16.0 software (SPSS Inc., Chicago, IL, USA). Logistic regression analysis was performed to identify independent predictors of mortality.

RESULTS: The mean age of 83 patients who died was 70.00 ± 8.39 years and 47 (56.6%) of these patients were male. All-cause death occurred in 69 (71.1%) of 97 patients with an MIS of ≥6. All-cause death occurred in 24 (54.5%) of 44 patients with a GNRI score of <91.2. Accordingly, MIS (P < 0.001, OR = 1.376 [0.163-0.392]), GNRI (P = 0.001, OR = -0.431 [1.189-1.990]), and age (P = 0.021, OR = 0.109 [0.818-0.984]) were found to be independent predictors of all-cause mortality.

CONCLUSIONS: GNRI and MIS are important predictors of increased risk of mortality from all causes in elderly HD patients.

PMID:36876615 | DOI:10.4103/njcp.njcp_672_22

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Nevin Manimala Statistics

The effect of different staining solutions on the color stability of temporary crown materials

Niger J Clin Pract. 2023 Feb;26(2):234-239. doi: 10.4103/njcp.njcp_659_22.

ABSTRACT

BACKGROUND: The esthetic expectations of patients are increasing by the day. That is why it is important to minimize the color changes in the oral cavity in both the temporary and permanent restorations.

AIM: This study was carried out to compare the time-dependent color changes of polished and unpolished temporary crown materials prepared by different methods in various solutions.

MATERIALS AND METHODS: Half of the two different temporary restoration materials prepared with a diameter of 10 mm and a thickness of 2 mm were polished, and half were not polished. The ΔE* values of the samples kept in various solutions were recorded. Data were statistically evaluated by using variance analysis (ANOVA) and a Tukey HSD multiple comparison test.

RESULTS: It was determined that the material type, the solution, the interaction between the material types and the surface treatment, and the interaction between the surface treatment and the solution were statistically significant for color change (p < 0.001).

CONCLUSION: The most significant color change in the inter-material evaluation was observed in chemically polymerized polymethyl methacrylate. In the evaluation between beverages, the highest color change was found in sugared coffee, and the lesser color change was observed in polished samples.

PMID:36876614 | DOI:10.4103/njcp.njcp_659_22

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Nevin Manimala Statistics

Injury severity score as a predictor of mortality in patients with abdominal trauma at a tertiary Nigerian hospital

Niger J Clin Pract. 2023 Feb;26(2):223-228. doi: 10.4103/njcp.njcp_559_22.

ABSTRACT

BACKGROUND: Abdominal trauma is a major cause of morbidity and mortality in low-and middle-income countries. Typical patients present late and very sick with early recognition key to improving outcome. There is a paucity of trauma data in this environment and trauma scoring systems which have been validated in the developed world are yet to find widespread use here.

AIM: This study aimed at evaluating role of injury severity score (ISS) in predicting mortality.

PATIENTS AND METHODS: This is a retrospective observational study of patients with abdominal trauma who presented at the University of Ilorin Teaching Hospital from 2013 to 2019. Records were identified and data were extracted and analyzed using Statistical package for social sciences 23.

RESULTS: A total of 87 patients were included in the study. There were 73 males and 14 females. The mean overall ISS in this study was 16.06 ± 7.9. Concerning morbidity, the area under the receiver operating characteristic curve in predicting morbidity was 0.843 (95% confidence interval 0.737-0.928). ISS had a strong sensitivity of 90% and specificity 55% at a cut-off of 14.50. Also, the area under the receiver operating characteristic curve in predicting mortality was 0.746 (95% confidence interval 0.588-0.908) and at a cut-off of 16.50; ISS had a specificity of 80% and sensitivity of 60%. The mean ISS of patients with mortality was 22.60 ± 10.5 while the survivors had a mean ISS of 14.7 ± 6.5 (P <.001). The mean ISS for patients who had morbidity was 22.8 ± 8.1 while those without morbidity had a mean ISS of 13.1 ± 5.7 (P <.05).

CONCLUSION: ISS was a good predictor of morbidity and mortality in abdominal trauma in patients in this study. A prospective study with standardized abdominal imaging would be needed to further validate this scoring tool.

PMID:36876612 | DOI:10.4103/njcp.njcp_559_22

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Nevin Manimala Statistics

Effects of different storage media on dentin moisture, microhardness, and bond strength of resin composite

Niger J Clin Pract. 2023 Feb;26(2):211-216. doi: 10.4103/njcp.njcp_498_22.

ABSTRACT

BACKGROUND: In in vitro studies, it is desirable that the storage solutions in which dental samples kept between extraction and experiment should prevent dehydration and have antimicrobial properties. However, it should be taken into consideration that these solutions may have some effects that directly change test results on physical and mechanical properties of laboratory samples.

AIMS: The aim of this in vitro study was to evaluate the effects of different storage media on dentin moisture, microhardness, and microshear bond strength of resin composite to dentin. Thirty non-carious human premolars were randomly divided into three groups: 1. 0.1% Thymol (T), 2. Distilled water (DW), 3. Dry storage (DS) (control) (n = 10). Dentin moisture was measured with a digital grain moisture meter. Dentin microhardness was measured with the Vickers test. The bond strength was measured with a microshear test.

MATERIALS AND METHODS: Analysis of variance (ANOVA) followed by the Bonferroni test was used for statistical evaluation (p = 0.05).

RESULTS: Dentin moisture of the experimental groups was statistically higher than that of the control group (p < 0.05). In addition, the dentin moisture of group DW was significantly higher than that of group T (p < 0.05). The mean microshear bond strength of resin composite to dentin was higher in group DW than in group T and group DS (p < 0.05), while there was no statistical difference between group T and group DS. The microhardness values of all groups were statistically similar.

CONCLUSIONS: Storage solutions used for disinfection and to prevent dehydration may have negative effects on dentin moisture and bond strength.

PMID:36876610 | DOI:10.4103/njcp.njcp_498_22