Publications by authors named "Marcus Bendtsen"

Background: Addressing the effects of non-compliance with health-related recommendations in pandemics is needed for informed decision-making. This longitudinal study investigated the effects of non-compliance on mental health and academic self-efficacy among university students in Sweden.

Methods: Baseline assessments were conducted in May 2020, with follow-ups after 5 and 10 months.

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Introduction: In Sweden and the UK, there is a high prevalence of risky drinking, a pattern of drinking associated with adverse consequences. Drinking motives are a proximal predictor of risky drinking and subsequent consequences, suggesting it may be an apt intervention target. Currently, there is a lack of evidence regarding the applicability of motives for intervention efforts.

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Middle-aged adults engaging in unhealthy lifestyle behaviors are at higher risk of chronic diseases. However, little is known about the co-occurrence of these behaviors and their determinants. This cohort study examined the co-occurrence of unhealthy lifestyle behaviors (alcohol consumption, diet, physical inactivity, and smoking) in 30,154 middle-aged adults and their associations with sociodemographic factors, social support, and disease history.

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Background: Indirect evidence suggests that using waiting list control designs in behavioural research may have unintended consequences. The aim of this study was to estimate the effects of a waiting list design on alcohol consumption among individuals who had looked online for help.

Methods: A two-arm randomised controlled trial was employed.

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Article Synopsis
  • The study looked at how a text message program helped people reduce their drinking and found that not everyone benefited the same way.
  • It used information from over 2,000 adults in Sweden and discovered that factors like age, gender, and drinking habits affected how well the program worked for each person.
  • The results showed that women, older people, and heavier drinkers got more help from the program, suggesting that making programs more tailored to different people could be better.
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Background And Aims: Digital smoking cessation interventions have been shown to be effective in helping individuals achieve prolonged smoking abstinence. Nonetheless, the mechanisms that drive such effects are unclear. The current study aimed to estimate a digital smoking cessation intervention's natural direct and indirect effects.

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Background: It is well established that the tobacco industry used research funding as a deliberate tactic to subvert science. There has been little wider attention to how researchers think about accepting industry funding. We developed, then tested, hypotheses about two psychological constructs, namely, entitlement and conflict of interest contrarianism (CoI-C) among alcohol researchers who had previously received industry funding.

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Aims: The purpose of this study was to address the need to improve opportunities for patient participation in their health and health services. This paper reports if and how patients' preferences matched their experiences of participation in treatment for hypertension in primary healthcare and what factors were linked with having had opportunities for participation that matched one's preferences.

Methods And Results: A total of 949 adult patients treated for hypertension completed the Patient Preferences for Patient Participation (4Ps) tool, with which they ranked their preferences for and experiences of patient participation.

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Improving health and sustainability outcomes in WEIRD (Western, Educated, Industrial, Rich, Democratic) nations necessitates a reduction in red meat consumption. Seafood is often overlooked in achieving this goal. However, simply consuming more of familiar fish species places high stress on production of these species.

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Introduction: Procrastination behaviors are common among university students, and have been found to be associated with stress, symptoms of depression, anxiety, and poorer academic performance. There is a need for interventions that can reach students at scale, and therefore this study aimed to estimate the effects of a single session low-threshold digital intervention (Focus) for procrastination behaviors among university students in Sweden.

Methods And Analysis: A two-arm, parallel groups (1:1), single blind randomized controlled trial was conducted between February 8 to April 26, 2023.

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Background: One approach to promoting healthy lifestyle behaviors is to target students with digital interventions. One of these is the digital intervention Buddy. This study aimed to understand why college and university students' chose to participate in a digital multiple lifestyle behavior intervention trial (Buddy), and their subsequent experiences of the behavior-change process.

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Alcohol consumption causes both physical and psychological harm and is a leading risk factor for noncommunicable diseases. Digital alcohol interventions have been found to support those looking for help by giving them tools for change. However, whether digital interventions can help tackle the long-term societal consequences of harmful alcohol consumption in a cost-effective manner has not been adequately evaluated.

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Hematologic abnormalities are common manifestations of SLE, although neutropenia is observed less frequently and is not included in the classification criteria. Nonetheless, neutropenia is a risk factor for infections, especially those caused by bacteria or fungi. We aimed to evaluate the impact of neutropenia in SLE through a systematic investigation of all infections in a large cohort of well-characterized patients, focusing on neutropenia, lymphopenia, and hypocomplementemia.

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Objective: This study used causal inference to estimate the longitudinal effects of contagion in cohabitants and family members on university students' mental health and academic self-efficacy during the COVID-19 pandemic.

Design: A prospective longitudinal study including a baseline online measurement in May 2020, and online follow-ups after 5 months and 10 months. Participants were recruited through open-access online advertising.

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Background: Emerging adulthood is often associated with mental health problems. About one in three university students report symptoms of depression and anxiety that can negatively affect their developmental trajectory concerning work, intimate relationships, and health. This can interfere with academic performance, as mood and anxiety disorders are key predictors of dropout from higher education.

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Objective: To estimate the effects of an interactive web-based support system mobile phone on preference-based patient participation in patients with hypertension treated in primary care (compared with standard hypertensive care only).

Design: A parallel group, non-blinded, randomized controlled trial, conducted October 2018-February 2021. Besides standard hypertensive care, the intervention group received eight weeks of support mobile phone to facilitate self-monitoring and self-management, tentatively providing for augmented patient engagement.

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Introduction: Individuals' comprehension of the information provided in consent forms should fundamentally influence whether to participate initially in a study and later whether to remain a participant. Existing evidence, however, suggests that participants do not thoroughly read, comprehend, or recall the information in consent forms. This study aimed to better understand how well participants recalled trial procedure information in the consent materials they received prior to taking part in a trial of a digital alcohol intervention.

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Article Synopsis
  • The study looked at how a 20-week exercise program affected sleep and breathing problems during sleep in children who are overweight or obese.
  • 109 kids, ages 8-11, either exercised or continued their regular activities, and their sleep was tracked with special devices.
  • The results showed that exercise helped kids wake up less after falling asleep, but it didn't really change other sleep problems or help with sleep on nights after exercise.
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Aim: Intervention design may be improved through evaluating the feedback from those who have been exposed to such interventions. As such, here the perspectives of the intervention group from a recent randomized control trial investigating the effectiveness of a digital alcohol intervention, in terms of perceived suitability and usefulness of the support tool they engaged with, were investigated.

Methods: Respondents (N=475; 45% of the intervention group) answered five quantitative questions addressing user experience, completed the 10-item System Useability Scale, and were offered the opportunity to write free-text feedback.

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  • Some doctors and nurses in Sweden think that digital tools, like apps, can help people quit smoking.
  • They believe it's important to find out who smokes and keep talking about quitting in their clinics.
  • Patients’ attitudes toward quitting smoking affect how and when these digital tools are used in their care.
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  • Researchers studied a digital program that helps people change their drinking habits by allowing them to write personal reminders sent via text messages.
  • They found five main ideas in what people wrote: encouragement, awareness, reasons to quit, strategies to quit, and time frames for change.
  • The study revealed that women and older participants were more likely to use this feature, especially if they had immediate access to the tool, which helped them feel more connected to their goal.
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  • Smoking is a major health problem, and researchers thought that sending text messages could help people quit.
  • They conducted a study with over 1,000 adult smokers, where one group got regular help and the other group received extra support through text messages for 12 weeks.
  • The results showed that people who got the text messages were much more likely to stop smoking both 3 and 6 months later compared to those who only got usual treatment.
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  • The study looked at how much kidney care patients feel they can participate based on their personal needs and choices, particularly over time.
  • It included 358 patients from nine kidney care locations in Sweden who shared their preferences and experiences about participation in surveys taken every six months.
  • The results showed that most patients felt their experiences matched their wishes, but some still felt their preferences were not fully met, even after efforts to improve this through special training for staff.
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Background: Digital alcohol interventions have been shown to exert effects in helping individuals reduce their drinking. However, little is known about the mechanisms which mediate such effects. The objective of this study was to estimate natural direct and indirect effects of a digital alcohol intervention.

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