Roy A. Willems
Open University
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Featured researches published by Roy A. Willems.
Psycho-oncology | 2017
Roy A. Willems; Catherine Bolman; Ilse Mesters; Iris M. Kanera; Audrey A. J. M. Beaulen; Lilian Lechner
The aim of this study was to evaluate the short‐term effectiveness of the web‐based computer‐tailored intervention Kanker Nazorg Wijzer (Cancer Aftercare Guide). The intervention aims to support cancer survivors with managing psychosocial and lifestyle‐related issues. In this study, the impact on quality of life, anxiety, depression, and fatigue were evaluated.
Journal of Medical Internet Research | 2016
Iris M. Kanera; Roy A. Willems; Catherine Bolman; Ilse Mesters; Victor Zambon; Brigitte C. M. Gijsen; Lilian Lechner
Background A fully automated computer-tailored Web-based self-management intervention, Kanker Nazorg Wijzer (KNW [Cancer Aftercare Guide]), was developed to support early cancer survivors to adequately cope with psychosocial complaints and to promote a healthy lifestyle. The KNW self-management training modules target the following topics: return to work, fatigue, anxiety and depression, relationships, physical activity, diet, and smoking cessation. Participants were guided to relevant modules by personalized module referral advice that was based on participants’ current complaints and identified needs. Objective The aim of this study was to evaluate the adherence to the module referral advice, examine the KNW module use and its predictors, and describe the appreciation of the KNW and its predictors. Additionally, we explored predictors of personal relevance. Methods From the respondents (N=231; mean age 55.6, SD 11.5; 79.2% female [183/231]), 98.3% (227/231) were referred to one or more KNW modules (mean 2.9, SD 1.5), and 85.7% (198/231) of participants visited at least one module (mean 2.1, SD 1.6). Significant positive associations were found between the referral to specific modules (range 1-7) and the use of corresponding modules. The likelihoods of visiting modules were higher when respondents were referred to those modules by the module referral advice. Predictors of visiting a higher number of modules were a higher number of referrals by the module referral advice (β=.136, P=.009), and having a partner was significantly related with a lower number of modules used (β=-.256, P=.044). Overall appreciation was high (mean 7.5, SD 1.2; scale 1-10) and was significantly predicted by a higher perceived personal relevance (β=.623, P=.000). None of the demographic and cancer-related characteristics significantly predicted the perceived personal relevance. Results The KNW in general and more specifically the KNW modules were well used and highly appreciated by early cancer survivors. Results indicated that the module referral advice might be a meaningful intervention component to guide the users in following a preferred selection of modules. These results indicate that the fully automated Web-based KNW provides personal relevant and valuable information and support for early cancer survivors. Therefore, this intervention can complement usual cancer aftercare and may serve as a first step in a stepped-care approach. Conclusions The KNW in general and more specifically the KNW modules were well used and highly appreciated by early cancer survivors. Indications were found that the module referral advice might be a meaningful intervention component to guide the users in following a preferred selection of modules. These results indicate that the fully automated Web-based KNW provides personal relevant and valuable information and support for early cancer survivors. Therefore, this intervention can complement usual cancer aftercare and may serve as a first step in a stepped-care approach. Trial Registration Nederlands Trial Register: NTR3375; http://www.trialregister.nl/trialreg/admin/rctview.asp?TC=3375 (Archived by WebCite at http://www.webcitation.org/6jo4jO7kb)
Nicotine & Tobacco Research | 2013
Roy A. Willems; Marc C. Willemsen; Gera E. Nagelhout; Hein de Vries
INTRODUCTION Use of evidence-based smoking cessation aids (SCA) is an efficacious way to improve smoking cessation relapse rates. However, use of SCA in the Netherlands is particularly low. This study examined determinants of intention to use SCA in smokers willing to quit. METHODS The Dutch Continuous Survey of Smoking Habits, a cross-sectional population survey, was used. Respondents were smokers (n = 594) wanting to quit sometime in the future and who made at least one quit attempt in the past, categorized as past users of evidence-based SCA, past users of nonevidence-based SCA, and smokers who had never used SCA before (nonusers). Respondents were asked about past SCA use, motivational determinants regarding smoking cessation and SCA use, and intention to use SCA during a future quit attempt. RESULTS Older and more addicted smokers were more likely to have used evidence-based SCA. Evidence-based and nonevidence-based users reported stronger attitudes and perceived social norm as well as lower self-efficacy expectations regarding smoking cessation and SCA use than nonusers. Having positive outcome expectations and perceived social norm regarding SCA use were strong predictors of intention to use SCA. Self-efficacy regarding smoking cessation was negatively related with intention to use SCA. CONCLUSIONS Nonusers, nonevidence-based users, and evidence-based users have different motivations for using evidence-based SCA and should not be treated as a homogenous group in smoking cessation programs. Additionally, it is unclear whether nonusers should be encouraged to use SCA, given that this group is less addicted and more confident about quitting.
International Journal of Behavioral Nutrition and Physical Activity | 2017
Iris M. Kanera; Roy A. Willems; Catherine Bolman; Ilse Mesters; Peter Verboon; Lilian Lechner
BackgroundThe number of cancer survivors is growing. Negative physical and psychosocial consequences of cancer treatment can occur during survivorship. Following healthy lifestyle recommendations is beneficial to increase quality of life and to reduce the risk of cancer recurrence and comorbidities. To meet individual needs, web-based interventions can supply a large population of cancer survivors with easily accessible and personalized information. Evidence concerning the long-term effects of web-based cancer aftercare interventions on lifestyle outcomes is limited. The present study evaluates the 12-month effects of a fully automated web-based cancer aftercare intervention. We investigated whether the previously determined 6-month effects on moderate physical activity and vegetable intake were maintained over 12 months. Possible moderator effects of using specific intervention modules, gender, age, and education were also explored.MethodA two-armed randomized controlled trial was conducted using online self-report questionnaires among survivors of various types of cancer (N = 462). The intervention group had access to the online intervention for 6 months, and the control group received access after 12-months. Multilevel linear regression analyses (complete cases and intention-to-treat) were conducted to explore 12- month effects.ResultsA significant intervention effect after 12 months was found for moderate physical activity (complete cases: B = 128.475, p = .010, d = .35; intention-to-treat: B = 129.473, p = .011). Age was the only significant moderator (p = .010), with the intervention being effective among participants aged younger than 57 years (B = 256.549, p = .000, d = .59). No significant intervention effect remained for vegetable consumption after 12 months (complete cases: B = 5.860, p = .121; intention–to-treat: B = 5.560, p = .132).ConclusionThe online cancer after care intervention is effective in increasing and maintaining moderate physical activity in the long term among early cancer survivors younger than 57 years. Short-term increases in vegetable consumption were not sustained in the long term. These findings indicate the value and potential of eHealth interventions for cancer survivors. Based on the study results, web-based self-management interventions could be recommended for younger cancer survivors (<57 years of age) as a possible method to increase physical activity.Trial registrationDutch Trial Register NTR3375. Registered 29 March 2012.
Tobacco Control | 2015
Gera E. Nagelhout; Marc C. Willemsen; B. van den Putte; H. de Vries; Roy A. Willems; Dewi Segaar
Background In 2011, the Netherlands implemented a national policy that ensured that health insurance companies reimbursed behavioural counselling for smoking cessation or the combination of behavioural counselling with pharmacological therapy. Objective To examine the real-world impact of a national reimbursement policy and accompanying media attention on use of cessation treatment and on smoking cessation. Methods We used a four-wave longitudinal survey among 2763 adult smokers that started in September 2010 and was repeated at approximately 3 month intervals until June 2011. Two survey waves were conducted before the implementation of the policy and two survey waves after. Findings There were significant increases in quit attempts (among moderate-to-heavy smokers) and in quit success (among all smokers) following the implementation of the reimbursement policy and the media attention. Use of behavioural counselling did not increase, while use of pharmacological therapy without behavioural counselling (unreimbursed treatment) increased among moderate-to-heavy smokers. Attention to media about the reimbursement was significantly associated with more quit attempts and more quit success. Awareness of the policy was significantly associated with more use of reimbursed treatment among all smokers, while attention to the media coverage was only significantly associated with more use of reimbursed treatment among moderate-to-heavy smokers. Awareness/attention variables were not significantly associated with use of unreimbursed treatment. Conclusions It seems that a national reimbursement policy for smoking cessation treatment that is accompanied by media attention can increase cessation. Our findings suggest that this increase can (partly) be ascribed to the media attention that accompanied the policy implementation.
Tobacco Control | 2014
Roy A. Willems; Marc C. Willemsen; Eline Suzanne Smit; Gera E. Nagelhout; Eva Janssen; H. de Vries
The use of evidence-based smoking cessation aids (SCA) is an important strategy in helping smokers to quit successfully and is highly recommended for smoking cessation.1 However, the use of these aids in the Netherlands is particularly low.2 While many smokers seem to underestimate the benefits of using evidence-based SCA,3 the use of non-evidence-based SCA is quite popular.4 ,5 Smokers do not perceive non-evidence-based SCA to be less helpful than evidence-based SCA.6 ,7 The internet might contribute to this misperception, since internet searches for SCA more often lead to non-professional than professional websites.8 So do smokers know which SCA are evidence-based and which are not? This study sought to find an answer to this question. The data collected in September 2010 were part of a study administered by the …
Psychology & Health | 2017
Roy A. Willems; Lilian Lechner; Peter Verboon; Ilse Mesters; Iris M. Kanera; Catherine Bolman
Objective: The aim of this study was to investigate whether problem-solving skills and perceived personal control over cancer recovery mediated the intervention effects on depression and fatigue of a web-based computer-tailored intervention for cancer survivors – the Kanker Nazorg Wijzer (Cancer Aftercare Guide). Design: Patients were recruited through 21 Dutch hospitals (November 2013–June 2014). The mediation model was tested in a randomised controlled trial with an intervention group (n = 231) and a waiting list control group (n = 231). Main outcome measures: Hypothesised mediators problem-solving skills (SPSI-R) and personal control (IPQ-R) were measured at baseline and 3 months from baseline. Outcomes depression (HADS) and fatigue (CIS) were measured at baseline and 6 months from baseline. Results: The intervention effects in decreasing depression and fatigue were mediated by personal control. Problem-solving skills did not mediate the intervention effects on depression and fatigue. Conclusion: While personal control in the control group decreased in the first three months after baseline, levels of personal control within the intervention group were maintained. This effect partially explained the intervention effects on depression and fatigue. The results provide evidence for the relevance of addressing personal control in web-based interventions in order to improve psychosocial well-being in early cancer survivors.
European Journal of Cancer Care | 2018
M.C. Keeman; Catherine Bolman; Ilse Mesters; Roy A. Willems; Iris M. Kanera; Lilian Lechner
Information and support needs increase emotional distress and can impede cancer survivors’ adjustment. To investigate the information and support needs of Dutch cancer survivors, the Cancer Survivors’ Unmet Needs measure (CaSUN) was translated into Dutch and applied in two Dutch studies with cancer survivors (N = 255; N = 467). The CaSUN‐NL entailed the original five CaSUN scales, extended with respectively a returning to work and lifestyle scale. This study aimed to determine the psychometric properties of the CaSUN‐NL. To assess validity, a maximum likelihood factor analysis was employed. Construct validity was analysed using Pearsons and Spearmans correlation coefficients. To assess reliability, test–retest (Kappa coefficient) and internal consistency (Cronbachs alpha) values were determined. Factor analysis revealed the original five factors. Test–retest reliability was low (r ≤ .15, 93% retest response). Internal consistency values were high (Cronbachs alpha = 0.92–0.94), except for lifestyle. Significant correlations were found between total number of unmet needs with anxiety (r = .55), depression (r = .49), negative adjustment (r = .50), quality of life (r = −.52) and age (r = −.24). The CaSUN‐NL is valid and reliable to investigate the unmet information and support needs of Dutch cancer survivors.
Psycho-oncology | 2016
Roy A. Willems; Catherine Bolman; Ilse Mesters; Iris M. Kanera; Audrey A. J. M. Beaulen; Lilian Lechner
BMC Cancer | 2015
Roy A. Willems; Catherine Bolman; Ilse Mesters; Iris M. Kanera; Audrey A. J. M. Beaulen; Lilian Lechner