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Dive into the research topics where Piotr Wilk is active.

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Featured researches published by Piotr Wilk.


Journal of Nursing Administration | 2001

Impact of structural and psychological empowerment on job strain in nursing work settings: expanding Kanter's model.

Heather K. Spence Laschinger; Joan Finegan; Judith Shamian; Piotr Wilk

Objective In this study, we tested an expanded model of Kanter’s structural empowerment, which specified the relationships among structural and psychological empowerment, job strain, and work satisfaction. Background Strategies proposed in Kanter’s empowerment theory have the potential to reduce job strain and improve employee work satisfaction and performance in current restructured healthcare settings. The addition to the model of psychological empowerment as an outcome of structural empowerment provides an understanding of the intervening mechanisms between structural work conditions and important organizational outcomes. Methods A predictive, nonexperimental design was used to test the model in a random sample of 404 Canadian staff nurses. The Conditions of Work Effectiveness Questionnaire, the Psychological Empowerment Questionnaire, the Job Content Questionnaire, and the Global Satisfaction Scale were used to measure the major study variables. Results Structural equation modelling analyses revealed a good fit of the hypothesized model to the data based on various fit indices (χ2 = 1140, df = 545, χ2/df ratio = 2.09, CFI = 0.986, RMSEA = 0.050). The amount of variance accounted for in the model was 58%. Staff nurses felt that structural empowerment in their workplace resulted in higher levels of psychological empowerment. These heightened feelings of psychological empowerment in turn strongly influenced job strain and work satisfaction. However, job strain did not have a direct effect on work satisfaction. Conclusions These results provide initial support for an expanded model of organizational empowerment and offer a broader understanding of the empowerment process.


Social Science & Medicine | 2009

Modelling the effects of intimate partner violence and access to resources on women's health in the early years after leaving an abusive partner ☆

Marilyn Ford-Gilboe; Judith Wuest; Colleen Varcoe; Lorraine Davies; Marilyn Merritt-Gray; Jacquelyn C. Campbell; Piotr Wilk

Although the negative health effects of intimate partner violence (IPV) are well documented, little is known about the mechanisms or determinants of health outcomes for women who had left their abusive partners. Using data collected from a community sample of 309 Canadian women who left an abusive partner, we examined whether womens personal, social and economic resources mediate the relationships between the severity of past IPV and current health using structural equation modelling. A good fit was found between the model and data for hypothesized models of mental and physical health. In the mental health model, both the direct and total indirect effects of IPV were significant. In the physical health model, the direct effect of IPV on physical health was about four times as large as the total indirect effects. In both models, more severe past IPV was associated with lower health and womens personal, social, and economic resources, when combined, mediated the relationship between IPV and health. These findings demonstrate that the health outcomes of IPV for women who have left an abusive partner must be understood in context of womens resources.


Health Care Management Review | 2012

Predictors of New Graduate Nurses' Workplace Well-being: Testing the Job Demands-resources Model

Heather K. Spence Laschinger; Ashley L. Grau; Joan Finegan; Piotr Wilk

Background: New graduate nurses currently experience a stressful transition into the workforce, resulting in high levels of burnout and job turnover in their first year of practice. Purpose: This study tested a theoretical model of new graduate nurses’ worklife derived from the job demands–resources model to better understand how job demands (workload and bullying), job resources (job control and supportive professional practice environments), and a personal resource (psychological capital) combine to influence new graduate experiences of burnout and work engagement and, ultimately, health and job outcomes. Methodology/Approach: A descriptive correlational design was used to test the hypothesized model in a sample of newly graduated nurses (N = 420) working in acute care hospitals in Ontario, Canada. Data were collected from July to November 2009. Participants were mailed questionnaires to their home address using the Total Design Method to improve response rates. All variables were measured using standardized questionnaires, and structural equation modeling was used to test the model. Findings: The final model fit statistics partially supported the original hypothesized model. In the final model, job demands (workload and bullying) predicted burnout and, subsequently, poor mental health. Job resources (supportive practice environment and control) predicted work engagement and, subsequently, lower turnover intentions. Burnout also was a significant predictor of turnover intent (a crossover effect). Furthermore, personal resources (psychological capital) significantly influenced both burnout and work engagement. Practice Implications: The model suggests that managerial strategies targeted at specific job demands and resources can create workplace environments that promote work engagement and prevent burnout to support the retention and well-being of the new graduate nurse population.


Pain Medicine | 2009

Abuse‐Related Injury and Symptoms of Posttraumatic Stress Disorder as Mechanisms of Chronic Pain in Survivors of Intimate Partner Violence

Judith Wuest; Marilyn Ford-Gilboe; Marilyn Merritt-Gray; Colleen Varcoe; Barbara Lent; Piotr Wilk; Jacquelyn C. Campbell

OBJECTIVE To examine the role of abuse-related injury and posttraumatic stress disorder (PTSD) symptom severity in mediating the effects of assaultive intimate partner violence (IPV) severity, psychological IPV severity, and child abuse severity on chronic pain severity in women survivors of IPV. METHODS Using data collected from a community sample of 309 women survivors of IPV, structural equation modeling was used to test a theoretical model of the relationships among the key variables. RESULTS The theoretical model accounted for almost 38% of the variance in chronic pain severity. PTSD symptom severity was a significant mediator of the relationships of both child abuse severity (beta = 0.13) and assaultive IPV severity (beta = 0.06) with chronic pain severity. Lifetime abuse-related injury was also a significant mediator of the relationships between both child abuse severity (beta = 0.05) and assaultive IPV severity (beta = 0.06) and chronic pain severity. Child abuse severity made the largest significant contribution to the model (beta = 0.35). Assaultive IPV severity had a significant indirect effect (beta = 0.12) on chronic pain severity while psychological IPV severity had a significant direct effect (beta = 0.20). CONCLUSIONS Management of chronic pain in IPV survivors requires attention to symptoms of PTSD, abuse-related injury, and lifetime experiences of violence. Ensuring that acute pain from injury is adequately treated and followed over time may reduce the extent of chronic pain in abused women. The results also support the importance of routine assessment for IPV and child abuse.


Canadian Public Policy-analyse De Politiques | 2011

Attributing Selected Costs to Intimate Partner Violence in a Sample of Women Who Have Left Abusive Partners: A Social Determinants of Health Approach

Colleen Varcoe; Olena Hankivsky; Marilyn Ford-Gilboe; Judith Wuest; Piotr Wilk; Joanne Hammerton; Jacquelyn C. Campbell

Cet article rend compte d’une étude qui nous a permis d’évaluer certains coûts associés à la violence conjugale au sein d’un échantillon de 309 femmes qui avaient quitté leur conjoint abuseur depuis 20 mois en moyenne. Nous estimons ces coûts – c’est-à-dire les dépenses publiques et privées associées à la violence conjugale – à 13 162,39


Journal of Womens Health | 2010

Pathways of Chronic Pain in Survivors of Intimate Partner Violence

Judith Wuest; Marilyn Ford-Gilboe; Marilyn Merritt-Gray; Piotr Wilk; Jacquelyn C. Campbell; Barbara Lent; Colleen Varcoe; Victoria Smye

par femme en moyenne. Si l’on considère l’ensemble des femmes canadiennes de 19 à 65 ans ayant un conjoint abuseur, les coûts associés à la violence conjugale se chiffrent donc à 6,9 milliards de dollars, et à 3,1 milliards si l’on considère les femmes victimes de violence conjugale au cours des trois dernières années. Ces résultats indiquent que la violence conjugale implique des coûts qui persistent longtemps après la séparation des conjoints. Il est donc important, en matière de politiques de lutte contre la violence conjugale, que les décideurs tiennent compte du fait que la séparation ne met pas un terme à cette violence.


Developmental Medicine & Child Neurology | 2014

Determinants of gross motor function of young children with cerebral palsy : A prospective cohort study

Doreen J. Bartlett; Lisa A. Chiarello; Sarah Westcott McCoy; Robert J. Palisano; Lynn Jeffries; Alyssa LaForme Fiss; Peter Rosenbaum; Piotr Wilk

OBJECTIVE To examine the roles of lifetime abuse-related injury, posttraumatic stress disorder (PTSD) symptom severity, and depressive symptom severity in mediating the effects of severity of assaultive intimate partner violence (IPV), psychological IPV, and child abuse on chronic pain severity in women survivors of IPV. METHODS Structural equation modeling of data from a community sample of 309 women survivors of IPV was used to test partial and full theoretical models of the relationships among the variables of interest. RESULTS The full model had good fit and accounted for 40.2% of the variance in chronic pain severity. Abuse-related injury, PTSD symptom severity, and depressive symptom severity significantly mediated the relationship between child abuse severity and chronic pain severity, but only abuse-related injury significantly mediated the relationship between assaultive IPV severity and chronic pain severity. Psychological IPV severity was the only abuse variable with significant direct effects on chronic pain severity but had no significant indirect effects. CONCLUSIONS These findings can inform clinical care of women with chronic pain in all areas of healthcare delivery by reinforcing the importance of assessing for a history of child abuse and IPV. Moreover, they highlight the relevance of routinely assessing for abuse-related injury and PTSD and depressive symptom severity when working with women who report chronic pain.


Journal of Family Violence | 2010

Cumulative Trauma, Personal and Social Resources, and Post-Traumatic Stress Symptoms Among Income-assisted Single Mothers

Joan Samuels-Dennis; Marilyn Ford-Gilboe; Piotr Wilk; William R. Avison; Susan L. Ray

The aim of this study was to test a model of determinants of gross motor function of young children with cerebral palsy (CP).


Traffic Injury Prevention | 2012

Medical Conditions, Medication Use, and Their Relationship With Subsequent Motor Vehicle Injuries: Examination of the Canadian National Population Health Survey

Evelyn Vingilis; Piotr Wilk

Data from 247 single mothers were used to partially validate a theoretical model that highlights the process through which post-traumatic stress disorder (PTSD) develops among women. Structural equation modeling was used to assess the direct and indirect relationship between cumulative trauma (CT) and mothers’ PTSD symptom severity. Additionally, we examined the meditational role played by mothers’ strains and resources and the moderating role played by mothers’ residence in an intersectionally advantaged versus disadvantaged neighborhood. A good fit was found between the hypothesized model and data. Mothers’ strains and personal resources played a significant mediating role in the relationship between CT and PTSD symptom severity. Neighborhood of residence did not moderate the CT-PTSD process. Implication for practice and treatment are discussed.


Journal of Nursing Administration | 2014

The influence of nursing unit empowerment and social capital on unit effectiveness and nurse perceptions of patient care quality.

Spence Laschinger Hk; Emily Read; Piotr Wilk; Joan Finegan

Purpose: To examine the effects of various medical conditions and medications on subsequent motor vehicle injuries (MVIs). Method: The National Population Health Survey, a large, nationally representative, longitudinal study of Canadians, included self-reported medical conditions of asthma, arthritis/rheumatism, back problems excluding arthritis, high blood pressure, migraine headaches, diabetes, heart disease and distress, and medication use during the past month for asthma, high blood pressure, diabetes, heart, codeine/pethidine (Demerol)/morphine, other pain relievers, antidepressants, tranquilizers, and sleeping medication. Path analyses were used to examine the odds of subsequent MVI for different medical conditions and medication use reported prior to the MVI (in the previous wave of the survey) while controlling for age and sex. Results: Increased odds of subsequent MVIs were found for asthma (odds ratio [OR]: 1.864, 95% confidence interval [CI]: 1.281, 2.713), arthritis/rheumatism (OR: 1.659, 95% CI: 1.163, 2.365), back problems (OR: 2.169, 95% CI: 1.624, 2.895), and migraines (OR: 1.631, 95% CI: 1.125, 2.364) but not for high blood pressure (OR: 1.435, 95% CI: 0.944, 2.181), diabetes (OR: 1.479, 95% CI: 0.743, 2.944), heart disease (OR: 2.627, 95% CI: 0.941, 7.334) or distress (OR: 1.153, 95% CI: 0.840, 1.581). Except for migraine with codeine/pethidine/morphine, this effect persisted regardless of whether medication was used to treat the condition. Respondents who reported using certain medications, namely, codeine/pethidine/morphine (OR: 2.215, 95% CI: 1.274, 3.850), other pain medication (OR: 1.630, 95% CI: 1.242, 2.139), antidepressants (OR: 2.664. 95% CI: 1.602, 4.429), and sleeping medication (OR: 2.059, 95% CI: 1.161, 3.651), had increased odds of subsequent MVI, independent of related medical condition, whereas tranquillizers showed no increased odds of subsequent MVIs. Conclusions: This study suggests that the relationship between medical conditions, medications, and MVIs is complex but consistent with other studies.

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Joan Finegan

University of Western Ontario

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Alana Maltby

University of Western Ontario

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Evelyn Vingilis

University of Western Ontario

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Jason Gilliland

University of Western Ontario

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Marilyn Ford-Gilboe

University of Western Ontario

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Colleen Varcoe

University of British Columbia

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Andrew F. Clark

University of Western Ontario

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Judith Wuest

University of New Brunswick

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