ORCID Profile
0000-0003-1944-9126
Current Organisation
Erasmus University Rotterdam
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Publisher: Elsevier BV
Date: 2017
Publisher: Wiley
Date: 28-04-2008
DOI: 10.1111/J.1530-0277.2008.00657.X
Abstract: The present study assessed the relative contribution of genes and environment to in idual differences in initiation of alcohol use and frequency of drinking among early adolescents and examined the extent to which the same genetic and environmental factors influence both in idual differences in initiation of alcohol use and frequency of drinking. Questionnaire data collected by the Netherlands Twin Register were available for 694 twin pairs aged of 12 to 15 years. Bivariate genetic model fitting analyses were conducted in mx. We modeled the variance of initiation of alcohol use and frequency of drinking as a function of three influences: genetic effects, common environmental effects, and unique environmental effects. Analyses were performed conditional on sex. Findings indicated that genetic factors were most important for variation in early initiation of alcohol use (83% explained variance in males and 70% in females). There was a small contribution of common environment (2% in males, 19% in females). In contrast, common environmental factors explained most of the variation in frequency of drinking (82% in males and females). In males the association between initiation and frequency was explained by common environmental factors influencing both phenotypes. In females, there was a large contribution of common environmental factors that influenced frequency of drinking only. There was no evidence that different genetic or common environmental factors operated in males and females. Different factors were involved in in idual differences in early initiation of alcohol use and frequency of drinking once adolescents have started to use alcohol.
Publisher: SAGE Publications
Date: 2005
DOI: 10.1080/01650250444000333
Abstract: Cross-sectional data from 1359 boys and girls aged 10–14 years investigated whether parenting behaviours are directly or indirectly (through building self-control) associated with emotional (depression, stress, low self-esteem) and behavioural (delinquency, aggression) problems among adolescents. Replicating existing findings, both types of problems were directly, negatively related to adaptive parenting behaviour (high parental acceptance, strict control and monitoring, and little use of manipulative psychological control). Extending existing findings, self-control partially mediated the link between parenting behaviour and adolescent emotional and behavioural problems. Contrary to earlier suggestions, there was no sign that high self-control was associated with drawbacks or increased risk of psychosocial problems.
Publisher: American Psychological Association (APA)
Date: 03-2012
DOI: 10.1037/A0025204
Abstract: This study examined dynamic effects of daily variations in craving and negative affect on the next-day risk of the first lapse and relapse among 149 adolescent daily smokers who achieved at least 24 hr of abstinence. Participants completed real-time assessments of their smoking, craving, and negative affect 3 times per day during the 3 weeks after their quit attempt. The main outcome measures included the first lapse and relapse after at least 24 hr of abstinence from smoking. Cox regression analyses with time-varying covariates showed that daily increases in craving predicted the risk of lapsing and relapsing on the following day, even after accounting for concurrent smoking and baseline levels of craving and nicotine dependence. Day-to-day variations in negative affect did not predict time to first lapse or relapse. In idual differences in baseline craving, nicotine dependence, and depressive symptoms also did not predict the first lapse or relapse. The findings challenge the significance of adolescents' negative affect during cessation and emphasize the need to assess dynamic effects of craving in addition to baseline ratings of craving and nicotine dependence, as the latter may not be sufficient to explain adolescent smoking cessation outcomes.
Publisher: Wiley
Date: 02-08-2016
DOI: 10.1016/J.ADOLESCENCE.2016.07.005
Abstract: In this study we examined prosocial compensating behavior towards socially excluded ingroup and outgroup members by using a ‘Prosocial Cyberball Game’ in 9–17 year old Dutch adolescents (N = 133). Results showed that adolescents compensated for the social exclusion of an unknown peer in a virtual ball tossing game, by tossing the ball more often to that player in compensation conditions compared to the fair play condition. The proportion of tosses towards the excluded player did not significantly differ as a function of the group status of that player. Although compensating behavior towards ingroup versus outgroup members did not differ, the underlying motivation for this behavior may vary. More empathic concern was associated with more prosocial tosses towards an ingroup member, while more self‐reported bullying behavior was associated with less compensating behavior in the outgroup condition. These findings may have practical implications for programs intending to change bystander behavior in bullying situations.
Publisher: Wiley
Date: 21-08-2017
DOI: 10.1111/ACER.13452
Abstract: Limited research is available on children's alcohol-related knowledge and alcohol-related norms, yet a better comprehension of these factors may be crucial in explaining alcohol use later in life. This study provides insights into alcohol-related knowledge and alcohol-related norms in 4- to 6-year-olds. Participating children (N = 329 48.9% boys) were shown, on a tablet, 18 drawings depicting 72 male and female adults and/or children in various situations, and were asked to indicate what the depicted persons drank by touching 1 of 12 depicted beverages (4 alcoholic 8 nonalcoholic). Subsequently, the children were asked to name the beverages and indicate whether they contained alcohol. Children identified 30.7% of the alcoholic beverages (i.e., beer, ch agne, red wine, and white wine) correctly by name, and they identified 41.6% of the alcoholic beverages correctly as alcohol containing. Children more often correctly identified the name and nonalcoholic content of nonalcoholic beverages compared to the name and alcoholic content of alcoholic beverages. No sex differences emerged in the correct identification of the name and the content of both alcoholic beverages and nonalcoholic beverages. However, alcohol-related knowledge was age graded. Alcoholic beverages were more often assigned to male adults (39.2%) than to female adults (24.8%) or to children (13.2%). Additionally, alcoholic beverages were more often assigned to adults depicted in the presumably more appropriate situations (e.g., "when having an indoor party": 37.0%) than to those depicted in the presumably more inappropriate situations (e.g., "when driving a car": 28.6%). Four- to 6-year-olds already have knowledge about alcohol and its norms in adult culture. Insight into the development of children's alcohol-related knowledge and alcohol-related norms over time is required to investigate the transitions to alcohol expectancies, drinking motives, and alcohol initiation often occurring in adolescence.
Publisher: Elsevier BV
Date: 02-2010
DOI: 10.1016/J.PUHE.2009.11.009
Abstract: There is considerable variability in progression from smoking initiation to established smoking. This paper addresses the extent to which different patterns of adolescent smoking, including periods of cessation, predict smoking status in young adults. Ten-year, eight-wave prospective cohort study of a state-wide community s le in Victoria, Australia. Participants were 1520 students from 44 secondary schools, initially aged 14 to 15 years. Adolescent smoking and quitting patterns were assessed during Waves 1-6 with self-reported frequency of use and a 7-day retrospective diary. The Fagerstrom Test for Nicotine Dependence (ND) was used to assess ND at the age of 24 years (Wave 8). The prevalence of ND in young adults was 16.9% for all adolescent smokers, with prevalence rates of 6.8% and 26.7% for adolescent non-daily and daily adolescent smokers, respectively. Maximum smoking levels, onset of daily smoking, duration of smoking, escalation time and duration of cessation during adolescence predicted later ND. Daily smokers who ceased smoking for at least two waves (> or = 12 months) had a level of risk similar to adolescents who had never smoked. Quitting smoking as an adolescent substantially alters the risk for later ND. For adolescents who become daily smokers, quitting for 12 months should be the aim in tobacco control and clinical interventions.
Publisher: Wiley
Date: 16-07-2018
DOI: 10.1111/ADD.14370
Abstract: The threshold of 4+/5+ drinks per occasion has been used for decades in alcohol research to distinguish between non-risky versus risky episodic drinking. However, no study has assessed the validity of this threshold using event-level data. This study aimed to determine the optimal thresholds for the detection of five acute alcohol-related consequences (hangover, blackout, risky sex, fights and injury) using data from two event-level studies. An event-level study to assess the ability to use the number of drinks consumed to discriminate between nights with and without consequences using the area under the receiver operating characteristic (AUROC) curve. Optimal thresholds were determined using the Youden Index based on sensitivity and specificity. Separate thresholds were estimated for gender and age groups (16-17 versus 18-25). Lausanne and Zurich, Switzerland. Three hundred and sixty-nine participants aged 16-25 years. On 3554 weekend nights, participants reported total number of alcoholic drinks consumed the previous night and acute consequences (hangover, blackout, risky sex, fights and injury) FINDINGS: Hangover was the most frequently reported consequence and injury the least for both genders. Throughout age groups and studies, optimal thresholds for any consequence, and for hangover only, were equal to 4+/5+ (40+/50+ g alcohol) while those for blackouts, risky sex, fights and injuries were up to three drinks higher. Adolescents tended to experience consequences more often and at slightly lower drinking levels than did adults. For all consequences but injuries, the optimal thresholds were one to two drinks lower for women than for men. Event-level data collection techniques appear particularly suitable to estimate thresholds at which acute alcohol-related consequences occur. Binge drinking thresholds of 4+/5+ (women/men) drinks, equivalent to 40+/50+ g pure alcohol, predict the occurrence of consequences accurately in general but are too low to predict severe acute alcohol-related consequences.
Publisher: Elsevier BV
Date: 08-2017
DOI: 10.1016/J.DRUGALCDEP.2017.04.006
Abstract: This systematic review aims to summarize the evidence of the impact of parental alcohol use on the acquisition of children's alcohol-related cognitions (alcohol-related knowledge, alcohol-related norms, alcohol expectancies) in the developmental period from age two to ten. A computer-assisted systematic literature search was performed in PubMed, PsychINFO, ERIC, and EMBASE. Overall, 20 out of the 3406 unique articles identified in the first screening were included. The results revealed that children acquire knowledge about alcohol already at age two and from age four on, they understand its use in adult culture. By the age of four, children have certain alcohol expectancies. The evidence of the impact of parental alcohol use on the acquisition of children's alcohol-related cognitions is inconsistent so far with studies showing positive and no effects. Unfortunately, the existing evidence is limited because most studies a) were conducted exclusively in the United States and more than two decades ago, b) used cross-sectional study designs, and c) used non-representative s les recruited using convenience s ling strategies. Research on children's alcohol-related cognitions is underdeveloped. To elucidate the conclusions about alcohol involvement in early life, studies with longitudinal study designs need to be conducted among representative s les of children and early adolescents by using age-appropriate measurement tools in a broader cultural context.
Publisher: Elsevier BV
Date: 12-2018
DOI: 10.1016/J.ADDBEH.2018.07.026
Abstract: The aim of the present study was to test the link between exposure to parental alcohol use (i.e., preteens seeing their parents drinking) and preteen's alcohol use. Specifically, this study aimed to (a) replicate the association between parental alcohol use and preteen alcohol use and (b) test whether alcohol use exposure mediated this association. Families were recruited from five regions in the Netherlands from 104 schools that agreed to participate. Preteens (N = 755, M Unexpectedly, father's alcohol use was negatively associated (β = -0.121, p = .012) and mother's alcohol use was not associated (β = 0.056, p = .215) with preteen's alcohol use. A positive indirect effect emerged through alcohol use exposure, showing that exposure to father's alcohol use mediated the association between parent's and preteen's alcohol use (β = 0.064, p = .001). This effect was absent for mother's alcohol use (β = 0.026, p = .264). Gender differences were non-significant. Parental alcohol exposure positively mediated the association of parental alcohol use with preteen's alcohol use. These effects were found for both boys and girls and were most robust for father's drinking. The findings might provide clues for preventive action, for ex le, by emphasizing that exposure should be restricted to prevent preteen's alcohol use.
Publisher: American Psychological Association (APA)
Date: 05-2010
DOI: 10.1037/A0018812
Abstract: The present study examined whether dynamic day-to-day variations in self-efficacy predicted success in quit attempts among daily smoking adolescents. A s le of 149 adolescents recorded their smoking and self-efficacy three times per day during 1 week prior to and 3 weeks after a quit attempt. The first lapse, second lapse, and relapse after at least 24 hours of abstinence from smoking were the main outcome measures. Self-efficacy was relatively high and moderately variable prior to the first lapse, but decreased and became more variable thereafter. Lower self-efficacy as measured at the lapse assessment significantly increased the risk that a second lapse and relapse would occur. In idual differences in baseline self-efficacy did not predict any of the treatment outcomes. The time-varying analyses, however, showed that lower self-efficacy on a given day predicted the first lapse, the second lapse, and relapse on the succeeding day. Daily concomitant smoking (any smoking on the preceding day) was not significantly related to relapse. The present results emphasize the importance of self-efficacy among adolescents in cessation and highlight the need for dynamic formulations and assessments of adolescents' self-efficacy and relapse.
Location: Netherlands
Location: No location found
No related grants have been discovered for Rutger Engels.