Rik Crutzen's research while affiliated with Jazan University and other places

Publications (329)

Article
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Background Social networks, i.e., all social relationships that people have, contribute to well-being and health. Governmental measures against COVID-19 were explicitly aimed to decrease physical social contact. We evaluated ego-centric social network structure and function, and changes therein, among various sociodemographic subgroups before and d...
Article
HIV testing and counseling (HTC) services are essential for all HIV prevention and treatment interventions. Evidence is limited on the role of private healthcare providers in providing HTC services. This study assessed the relevant beliefs for intervention to enhance the intention to offer HTC services among private healthcare providers. A cross-se...
Preprint
A theory crisis and measurement crisis have been argued to be root causes of psychology's credibility crisis. In both, the lack of conceptual clarification and the jingle-jangle jungle at the construct definition level as well the measurement level play a central role. We introduce a conceptual tool that can address these issues: a Decentralized Co...
Article
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Background Contact tracing (CT) is an important, but resource-intensive tool to control outbreaks of communicable diseases. Under pandemic circumstances, public health services may not have sufficient resources at their disposal to effectively facilitate CT. This may be addressed by giving cases and their contact persons more autonomy and responsib...
Article
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Background: Sleep has a major impact on health, which makes it a relevant topic for research and health practitioners. Research on sleep determinants, i.e. factors that positively or negatively influence sleep, is fragmented. Objective: The purpose of this umbrella review is to provide an overview of the current evidence on determinants of natur...
Preprint
Objectives. Engagement with and potential impact of web-based interventions is often studied by unobtrusively tracking user behavior with web analytics. These metrics do provide insights into how users behave, but not why. This study explores how a mixed-methods approach combining ‘how’ and ‘why’ can be used to gain insight into engagement with and...
Article
Background In the Netherlands, since 1996, a national cervical cancer (CC) screening program has been implemented for women aged 30 to 60 years. Regional screening organizations send an invitation letter and information brochure in Dutch to the home addresses of targeted women every 5 years. Although this screening is free of charge, Turkish- and M...
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Background In the Netherlands, especially Turkish- and Moroccan-Dutch women show low cervical cancer screening participation and limited informed decision-making in this regard. To meet the needs of these women, a culturally sensitive educational video was developed. The objective was to evaluate the effect of the video on informed decision-making...
Article
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Background Diagnosis of people with HIV is vital in achieving the 95-95-95 global targets. The proportion of people with HIV who know they have HIV in Sudan is low. Promoting engagement of healthcare providers (HCPs) in offering HIV Testing and Counseling (HTC) services would improve the percentage of diagnosed people with HIV in the country. This...
Preprint
BACKGROUND Reducing the rates of Sexually Transmitted Infections (STIs) amongst young people is a public health priority. The best way to avoid STIs from penetrative sex is to use a condom but young people report inconsistent use. A missed opportunity to intervene to increase condom use is when they access self-sampling kits for STIs via the intern...
Preprint
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Purpose: To produce a culturally adapted translation of the Rapid Assessment of Physical Activity (RAPA) questionnaire for German speaking Austrians and to conduct a linguistic validation of the new questionnaire version. Methods: The original English-language RAPA questionnaire was independently forward-backward translated to Austrian German. The...
Article
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Video consultations (in combination with remote STI testing) can benefit both public sexual health clinics (SHCs) and their clients. The Dutch public SHCs explored the extent to which video consultations are accepted and appreciated—compared to face-to-face consultations—by both young clients (under 25 years) and nurses who normally carry out consu...
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FCMpy is an open-source Python module for building and analyzing Fuzzy Cognitive Maps (FCMs). The module provides tools for end-to-end projects involving FCMs. It is able to derive fuzzy causal weights from qualitative data or simulating the system behavior. Additionally, it includes machine learning algorithms (e.g., Nonlinear Hebbian Learning, Ac...
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Background Antenatal care is imperative for adolescents and young women, due to their increased risk of pregnancy-related complications. Evidence on the psychosocial determinants of antenatal attendance among this vulnerable group is lacking. This study assessed the relevance of the psychosocial sub-determinants of intention and self-efficacy to at...
Article
Background Lack of physical activity is a critical contributing risk factor to cardiovascular disease. Hence, regular physical activity is a mainstay in the primary and secondary prevention of cardiovascular disease. Despite the extensive promotion of physical activity in both primary and secondary prevention programs, including cardiac rehabilitat...
Article
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Samenvatting Uitdaging en ontwikkelingen in het veld van gezondheidsbevordering worden in dit artikel beschreven aan de hand van drie perspectieven die ten grondslag liggen aan Intervention Mapping: 1) participatie incorporeren in werkprocessen; 2) systeemdenken een plaats geven binnen de mantra van evidence-based werken; en 3) definities van const...
Article
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The COVID-19 pandemic has temporarily disrupted access to clinic-based sexual health care for men who have sex with men (MSM) in the Netherlands. The importance of home-based sexual health care has been underpinned as an extension of clinic-based care. This paper aims to assess intention to use, and acceptability of home-based sexual health care am...
Preprint
Objective: Patient online access to medical records can foster patient empowerment and advance patient-centered healthcare. Despite high patient interest, actual user rates often remain low. Insight into relevance of determinants is limited but needed to support patients’ informed decision-making regarding use and adoption.Method: A nationwide surv...
Article
Background: In the Netherlands, all women aged 30-60 years are invited to participate in the national cervical cancer screening programme, which is aimed at early detection and treatment of precancerous lesions. One fourth of the Dutch population has a migration background, with Turkish and Moroccan immigrants being the largest immigrant populatio...
Article
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Background: Smoking continues to be a driver of mortality. Various forms of evidence-based cessation assistance exist; however, their use is limited. The choice between them may also induce decisional conflict. Offering decision aids (DAs) may be beneficial; however, insights into their effective elements are lacking. Objective: This study tested...
Article
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Background eHealth provides a viable option to facilitate type-2 diabetes mellitus self-management and adherence. To this end, a web-based computer-tailored eHealth programme, My Diabetes Profile (MDP), was developed and implemented in Dutch diabetes care. To fully utilize the potential of eHealth, the reach of effective programmes like MDP should...
Article
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Background According to the Elaboration Likelihood Model, persuasion can occur via two different routes (the central route and peripheral route), with the route utilized dependent on factors associated with motivation and ability. This study aimed to explore the moderating role of need for cognition (NFC) and perceived relevance on the processing o...
Chapter
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The General Data Protection Regulation (GDPR) entered into force on May 25, 2018. Compliance with GDPR is especially relevant to the Digital Health (DH) domain, as it is common to process highly sensitive personal data regarding a person’s health. However, GDPR compliance is a very challenging process since it requires implementing several technica...
Poster
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The Rapid Assessment of Physical Activity (RAPA) is a brief assessment tool for clinicians to capture physical activity (PA) levels in adults older than 50 years. The RAPA was rated highest by the American Heart Association among 14 such available tools in a comparative evaluation. This evaluation took into account concurrent criterion validity, ab...
Article
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More than 90% of children who are HIV positive were infected via mother-to-child transmission (MTCT). In Sudan, HIV testing rates during pregnancy remain low. This study aimed to understand the key determinants of HIV testing and their association with pregnant women’s intention to undergo HIV test during pregnancy. A cross-sectional survey was con...
Article
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Background: Digital technology uses in cardiology have become a popular research focus in recent years. However, there has been no published bibliometric report that analyzed the corresponding academic literature in order to derive key publishing trends and characteristics of this scientific area. Objective: We used a bibliometric approach to ident...
Preprint
Despite their vital role in enhancing human health and well-being, concerns have been raised about suboptimal reporting of behavior change interventions, making analysis, replication, and re-use of interventions hard or even impossible. This paper introduces acyclic behavior change diagrams (ABCDs) to achieve more transparent development, evaluatio...
Article
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Background Most diagnosed oral cancer cases in Saudi Arabia are in the Jazan region. A common type of smokeless tobacco "Shammah" is prevalent in this region. This study aimed to gain an in-depth understanding of the possible psychosocial determinants of Shammah consumption among adult Shammah users in Jazan region. Methods A qualitative study was...
Preprint
When developing behavior change interventions in a systematic way, it is important to select determinants relevant to the target behavior. Data is needed to gain insight into the determinant structures (the relative strengths of associations between determinants and behavior) and their univariate distributions. This insight is crucial to select the...
Preprint
Background: Lack of physical activity is a critical contributing risk factor to cardiovascular disease (CVD). Hence, regular physical activity is a mainstay in primary and secondary prevention of CVD. Despite the extensive promotion of physical activity in both primary and secondary prevention programmes, including cardiac rehabilitation, physical...
Article
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Conflict can be a primary driver of health inequalities, but its impact on the distribution of social determinants of health is not very well documented. Also, there is limited evidence on the most suitable approaches aiming at addressing health inequalities in post-conflict settings. Thus, we undertook a systematic review of the literature concern...
Article
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Problematic alcohol use has been increasing in older adults (55+) in recent decades. Many of the effective interventions that are available to prevent or reduce the negative effects of alcohol consumption are aimed at adults in general. It is unclear whether these interventions also work for older adults. The objective of this review was to underst...
Article
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In this White Paper, we outline recommendations from the perspective of health psychology and behavioural science, addressing three research gaps: (1) What methods in the health psychology research toolkit can be best used for developing and evaluating digital health tools? (2) What are the most feasible strategies to reuse digital health tools acr...
Article
This study compared the harm perception, motivation, and basic psychological needs of adolescent hookah pipe users and non-users. We surveyed 1 201 adolescents aged 13–19 years old from South Africa who were hookah users (n = 256) and non-users (n = 909). Most participants were female (66.7%) and coloured/mixed race (57.5%), followed by black (37.5...
Article
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Oral cancer forms a major public health issue. In Saudi Arabia, Jazan region has the highest rate of oral cancer; > 35% of total cases. Furthermore, dentists’ engagement in oral cancer screening and patient education in Jazan region is limited. This paper aimed to describe the process used to develop a comprehensive oral cancer (OC) practice interv...
Article
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Background Sedentary behaviour (SB) affects cardiometabolic health and quality of life (QoL). We examine the effects of UPcomplish, a 12-week data-driven intervention, on SB, QoL and psychosocial determinants among office workers. Methods Participants were recruited via judgement sampling. Five groups starting with time-lags of 7 weeks ( n = 142,...
Preprint
Background: Patient online access to medical records is assumed to foster patient empowerment and advance patient-centered healthcare. Since July 2020, patients in the Netherlands are legally entitled to electronically access their medical record in general practice. Experience from pioneering countries shows that despite high patient interest, use...
Preprint
Full-text available
BACKGROUND Digital technology uses in cardiology have become a popular research focus in recent years. However, there has been no published bibliometric report that analyzed the corresponding academic literature in order to derive key publishing trends and characteristics of this scientific area. OBJECTIVE We used a bibliometric approach to identi...
Preprint
Full-text available
FCMpy is an open source package in Python for building and analyzing Fuzzy Cognitive Maps. More specifically, the package allows 1) deriving fuzzy causal weights from qualitative data, 2) simulating the system behavior, 3) applying machine learning algorithms (e.g., Nonlinear Hebbian Learning, Active Hebbian Learning, Genetic Algorithms and Determi...
Article
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(1) Background: The aim of this study is to investigate changes over time in participants of healthyLIFE, a Combined Lifestyle Intervention (CLI) based on the Coaching on Lifestyle (CooL) intervention. This study focuses on changes in behavior, physical fitness, motivation and Positive Health eight months after the start of the intervention. (2) Me...
Article
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Background: Unhealthy sexual behaviors, such as unprotected sexual intercourse and lack of using screening services increase cyclical transmission of sexually transmitted infections including Human Immunodeficiency Virus (HIV), especially among young adults. Hence health promotion programs can contribute to reduce the consequences, by changing (det...
Preprint
BACKGROUND Smoking continues to be a driver of mortality. Various forms of evidence-based cessation assistance exist, but their use is limited. The decision between them may also induce decisional conflict. Offering decision aids (DAs) may be beneficial, but insights into their effective elements are lacking. OBJECTIVE To test the added value of a...
Article
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Purpose Fear of falling (FoF) is a common and debilitating problem for older people. Most multicomponent interventions show only moderate effects. Exploring the effective components may help in the optimization of treatments for FoF. Materials and methods In a systematic review of five scientific literature databases, we identified randomized cont...
Article
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Background/Objective To identify the most relevant determinants involved in Physical Activity (PA) changes in the EVIDENT 3 study population, measured by the International PA Questionnaire (IPAQ) and the Actigraph GT3X accelerometer.Method: Exploratory study. Data used were collected from EVIDENT 3 study (N = 650). Items to measure psychological de...
Article
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Background Maternal mortality among adolescent mothers in South Africa is higher than many middle-income countries. This is largely attributable to conditions that can be prevented or managed by high quality antenatal care. The way in which pregnant adolescents are treated at antenatal clinics influences their timely utilization of antenatal servic...
Article
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Background When reopening universities in times of COVID-19, students still have to adhere to COVID-19 behavioral guidelines. We explored what behavioral determinants (and underlying beliefs) related to the adherence to guidelines are both relevant and changeable, as input for future interventions. Methods A cross-sectional online survey was condu...
Preprint
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BACKGROUND WHO described Vaccine hesitancy in 2019 as one of the top 10 threats to global health in high, and low, and middle-income countries. Various communication approaches have been used to engage the public about vaccines and immunization such as mass media and e-health strategies. With the expansion in the use of communication technologies i...
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Objectives: The objective of this study was to investigate dental patients' behavior, thoughts, opinions and needs for oral cancer information, and dentists' behavior regarding prevention and examination of oral cancer. Materials and methods: This study utilized an exploratory sequential mixed methods design. Semi-structured interviews with open...
Article
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Objective: This study aims to explore students’ adherence and reasons behind the (non)adherence to the COVID-19-regulations within a university setting. Methods: A total of 33 students participated in on-site and online focus group interviews (k = 8). Discussed topics included the general COVID-19-guidelines of the university, including keeping ≥1....
Article
Background and Objectives: The Falls Efficacy Scale-International (FES-I) and its shorter version (Short FES-I) are widely used measures of concerns about falling (CaF) and have consistently demonstrated good psychometric properties. The FES-I Avoidance Behavior (FES-IAB) and Short FES-IAB were developed to gain insight into activity avoidance due...
Preprint
In March 2020, the Your COVID-19 Risk tool was developed in response to the global spread of SARS-CoV-2. The tool is an online resource based on key behavioural evidence-based risk factors related to contracting and spreading SARS-CoV-2. This article describes the development of the tool, the produced resources, the associated open repository, and...
Preprint
With the current increase in web-based interventions, the question of how to measure, and consequently improve engagement in such interventions is gaining more importance. Modern day web analytics tools make it easy to monitor use of web-based interventions. However, in this article, we propose that it would be more meaningful to first examine how...
Article
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Background: Adolescent hookah pipe use is on the rise despite it being a public health concern. Several studies focus on the external determinants of adolescent hookah pipe use but research focusing on the internal factors motivating adolescents to smoke the hookah pipe is sparse. Objective: Drawing on self-determination theory, a contemporary theo...
Article
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Purpose : Physical activity (PA) is crucial for health, but there is insufficient evidence about PA patterns and their operationalization. The authors developed two algorithms (SPORT constant and SPORT linear ) to quantify PA patterns and check whether pattern information yields additional explained variance (compared with a compositional data appr...
Chapter
The hookah pipe is a mechanism used to smoke legal and illegal substances. Hookah pipe smoking negatively impacts adolescents’ opportunities to prosper because of its health consequences, potential for addiction and risk to be a gateway substance. The use of the hookah pipe is on the rise and families contribute to the choices made by adolescents....
Article
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Background Adequate sun safety during childhood is crucial for decreasing skin cancer risk in later life. Although parents are an essential target group in applying sun protection measures for their children, insight into the determinants associated with their sun protection behaviors is limited. Aims This study aims to identify the most relevant...
Chapter
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With advances in Digital Health (DH) tools, it has become much easier to collect, use, and share patient-generated health data (PGHD). This wealth of data could be efficiently used in monitoring and controlling chronic illnesses as well as predicting health outcome. Although integrating PGHD into clinical practice is currently in a promising stage,...
Preprint
When developing behavior change interventions in a systematic way, an important step is to first identify determinants relevant to a target behavior. Subsequently, limited resources create a need to select those determinants that are most relevant to this behavior. Regression analyses are commonly used for selecting determinants, but the aim of thi...
Article
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Many societal problems are related to human behavior. To change behavior, it is crucial to be aware of Lewin’s formula indicating that behavior is a function of a person and their environment. Technology provides opportunities with regard to (measurement of) all three elements of this formula. This raises the question how existing technologies can...
Article
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Caring for children with a disability can cause a range of psychological and socioeconomic challenges for parents and caregivers, such as anxiety, depression, inability to find affordable and appropriate childcare, loss of income and expenses related to disability specific treatment. As part of a study exploring the impacts of childhood disability...
Article
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Background: Use of HIV testing and counselling (HTC) services remains low among TB patients in Sudan. Identifying the social-cognitive (sub) determinants associated with HTC uptake is essential before developing interventions to promote uptake. This study aims to assess the sub-determinants of intention to use and actual behaviour of using HTC serv...
Preprint
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BACKGROUND On January 30, 2020, the World Health Organization’s Emergency Committee declared the rapid, worldwide spread of COVID-19 a global health emergency. Since then, tireless efforts have been made to mitigate the spread of the disease and its impact, and these efforts have mostly relied on nonpharmaceutical interventions. By December 2020, t...
Article
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Background: On the 30th of January 2020, the WHO's Emergency Committee declared the rapid worldwide spread of COVID-19, a global health emergency. Since then tireless efforts have been made to mitigate the spread of the disease and its impact, mostly relying on non-pharmaceutical interventions. By December 2020, the safety and efficacy of the firs...
Preprint
Objective: When reopening universities in times of COVID-19, students still have to adhere to COVID-19 behavioral guidelines. We explored what behavioral determinants (and underlying beliefs) related to the adherence to guidelines are both relevant and changeable, as input for future interventions.Design: A cross-sectional online survey was conduct...
Preprint
Within the field of health psychology, there has been an enormous increase in behaviour change interventions that use digital technology. Answering questions and providing tailored feedback based on the answers provided by participants is the key working mechanism when using computer-tailoring in behaviour change interventions. This behaviour chang...
Article
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Background Virtual reality (VR) and augmented reality (AR) have recently become popular research themes. However, there are no published bibliometric reports that have analyzed the corresponding scientific literature in relation to the application of these technologies in medicine. Objective We used a bibliometric approach to identify and analyze...
Preprint
Acyclic Behavior Change Diagrams (ABCDs) are diagrams that illustrate the logic model (also known as ‘theory of change’) underlying any intervention, treatment, or campaign aiming to change some aspect of people’s minds and/or behaviors. Specifically, the ABCD shows the assumed causal and structural assumptions, thereby showing what is assumed to c...
Preprint
Objective. This study aims to explore students’ adherence and reasons behind the (non)adherence to the COVID-19-regulations within a university setting.Methods. A total of 33 students participated in on-site and online focus group interviews (k=8). Discussed topics included the general COVID-19-guidelines of the university, including keeping ≥1.5 m...