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Assessing Command and Control Effectiveness : Dealing with a changing world
- 2014
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Samlingsverk (redaktörskap) (övrigt vetenskapligt/konstnärligt)abstract
- Assessing Command and Control Effectiveness: Dealing with a Changing World offers a description of the current state of Command and Control (C2) research in imperfect settings, showing how a research process should assess, analyse and communicate results to the development cycle of methods, work, manning and C2-technology. Special attention is given to the development of C2 research methods to meet the current and coming needs. The authors also look forward towards a future where effective assessment of C2 abilities are even more crucial, for instance in agile organisations.The purpose of the C2 research is to improve the process and make it more effective while still saving time and money. Research methods have to be chosen carefully to be effective and simple, yet provide results of high quality. The methodological concerns are a major consideration when working under such circumstances. Furthermore, there is often a need for a swift iterative development cycle, and thus a demand to quickly deliver results from the research process. This book explains how field research experimentation can be quick, simple and effective, being able to draw valid conclusions even when sample sizes are small and resources are limited, collecting empirical data using measures and procedures that are minimally intrusive.
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| 3. |
- Broström, Anders, 1963-, et al.
(författare)
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Symptom profile of undiagnosed obstructive sleep apnoea in hypertensive outpatients in primary care : a structural equation model analysis
- 2012
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Ingår i: Quality in Primary Care. - London, United Kingdom : iMedPub Ltd.. - 1479-1072 .- 1479-1064. ; 20:4, s. 287-298
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Tidskriftsartikel (refereegranskat)abstract
- BackgroundObstructive sleep apnoea (OSA) has been linked to hypertension in sleep clinic populations, but little is known about the symptom profile of undiagnosed OSA in hypertensive outpatients in primary care.AimTo explore characteristics associated with undiagnosed OSA in hypertensive primary care patients.MethodsCross-sectional design, including 411 consecutive patients (52% women), mean age 57.9 years (standard deviation [SD] 5.9 years), with diagnosed hypertension (blood pressure >140/90 mmHg) fromfour primary care centres. All subjects underwent a full-night, home-based, respiratory recording to establish the presence and severity of OSA. Clinical variables, medication and comorbidities, as well as data from self-rating scales regarding symptoms/characteristics, insomnia, excessive daytime sleepiness, depressive symptoms and health were collected during a clinical examination. Factor analyses and structural equation modelling (SEM) were used to explore the relationships between selfrated symptoms, clinical characteristics and objectively verified diagnosis of OSA.Main outcomeMeasures symptom profile of undiagnosed OSA (as measured by the Apnoea/ Hypopnoea Index [AHI]) in hypertensive outpatients in primary care.ResultsFifty-nine percent of the patients had an AHI _ 5/hour indicating OSA. An exploratory factor analysis based on 19 variables yielded a six-factor model (anthropometrics, blood pressure, OSA-related symptoms, comorbidity, health complaints and physical activity) explaining 58% of the variance. SEM analyses showed strong significant associations between anthropometrics (body mass index, neck circumference, waist circumference) (0.45), OSA-related symptoms (snoring, witnessed apnoeas, dry mouth) (0.47) and AHI. No direct effects of OSA on comorbidities, blood pressure, dyssomnia or self-rated health were observed.ConclusionOSA was highly prevalent and was directly associated with anthropometrics and OSArelated symptoms (snoring, witnessed apnoeas and dry mouth in the morning). When meeting patients with hypertension, these characteristics could be used by general practitioners to identify patients who are in need of referral to a sleep clinic for OSA evaluation.
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- Johansson, Peter, 1962-, et al.
(författare)
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Internet-Based Cognitive Behavioral Therapy and its Association With Self-efficacy, Depressive Symptoms, and Physical Activity : Secondary Analysis of a Randomized Controlled Trial in Patients With Cardiovascular Disease
- 2022
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Ingår i: JMIR Cardio. - Toronto, Canada : JMIR Publications, Inc.. - 2561-1011. ; 6:1
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Tidskriftsartikel (refereegranskat)abstract
- Background: In patients with cardiovascular disease (CVD), knowledge about the associations among changes in depressivesymptoms, self-efficacy, and self-care activities has been requested. This is because such knowledge can be helpful in the designof behavioral interventions aimed to improve self-efficacy, reduce depressive symptoms, and improve performance of self-careactivities in CVD patients.Objective: We aim to evaluate if internet-based cognitive behavioral therapy (iCBT) improves self-efficacy and explore therelationships among changes in depressive symptoms, self-efficacy, and physical activity, as well as the influence of iCBT onthese relationships.Methods: This study received funding in January 2015. Participant recruitment took place between January 2017 and February2018, and the main findings were published in 2019. This study is a secondary analysis of data collected in a randomized controlledstudy evaluating the effects of a 9-week iCBT program compared to an online discussion forum (ODF) on depressive symptomsin patients with CVD (N=144). Data were collected at baseline and at the 9-week follow-up. Analysis of covariance was used toevaluate the differences in self-efficacy between the iCBT and ODF groups. Structural equation modeling explored the relationshipsamong changes in depressive symptoms, self-efficacy, and physical activity, as well as the influence of iCBT on these relationships.Results: At follow-up, a significant difference in the increase in self-efficacy favoring iCBT was found (P=.04, Cohen d=0.27).We found an indirect association between changes in depressive symptoms and physical activity (ß=–.24, P<.01), with the changein self-efficacy acting as a mediator. iCBT had a direct effect on the changes in depressive symptoms, which in turn influencedthe changes in self-efficacy (ß=.23, P<.001) and physical activity (ß=.12, P<.001).Conclusions: Self-efficacy was improved by iCBT. However, the influence of iCBT on self-efficacy and physical activity wasmostly mediated by improvements in depressive symptoms.Trial Registration: ClinicalTrials.gov NCT02778074; https://clinicaltrials.gov/ct2/show/NCT02778074
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- Mourad, Ghassan, 1974-, et al.
(författare)
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The associations between psychological distress and healthcare use in patients with non-cardiac chest pain : does a history of cardiac disease matter?
- 2018
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Ingår i: BMC Psychiatry. - : Springer Science and Business Media LLC. - 1471-244X. ; 18:1
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Psychological distress such as somatization, fear of body sensations, cardiac anxiety and depressive symptoms is common among patients with non-cardiac chest pain, and this may lead to increased healthcare use. However, the relationships between the psychological distress variables and healthcare use, and the differences in relation to history of cardiac disease in these patients has not been studied earlier. Therefore, our aim was to explore and model the associations between different variables of psychological distress (i.e. somatization, fear of body sensations, cardiac anxiety, and depressive symptoms) and healthcare use in patients with non-cardiac chest pain in relation to history of cardiac disease.METHODS: In total, 552 patients with non-cardiac chest pain (mean age 64 years, 51% women) responded to the Patient Health Questionnaire-15, Body Sensations Questionnaire, Cardiac Anxiety Questionnaire, Patient Health Questionnaire-9 and one question regarding number of healthcare visits. The relationships between the psychological distress variables and healthcare visits were analysed using Structural Equation Modeling in two models representing patients with or without history of cardiac disease.RESULTS: A total of 34% of the patients had previous cardiac disease. These patients were older, more males, and reported more comorbidities, psychological distress and healthcare visits. In both models, no direct association between depressive symptoms and healthcare use was found. However, depressive symptoms had an indirect effect on healthcare use, which was mediated by somatization, fear of body sensations, and cardiac anxiety, and this effect was significantly stronger in patients with history of cardiac disease. Additionally, all the direct and indirect effects between depressive symptoms, somatization, fear of body sensations, cardiac anxiety, and healthcare use were significantly stronger in patients with history of cardiac disease.CONCLUSIONS: In patients with non-cardiac chest pain, in particular those with history of cardiac disease, psychological mechanisms play an important role for seeking healthcare. Development of interventions targeting psychological distress in these patients is warranted. Furthermore, there is also a need of more research to clarify as to whether such interventions should be tailored with regard to history of cardiac disease or not.
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