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Annual Waves (annual + wave)
Selected AbstractsThe natural history of quitting smoking: findings from the International Tobacco Control (ITC) Four Country SurveyADDICTION, Issue 12 2009Natalie Herd ABSTRACT Aims To describe the long-term natural history of a range of potential determinants of relapse from quitting smoking. Design, setting and participants A survey of 2502 ex-smokers of varying lengths of time quit recruited as part of the International Tobacco Control (ITC) Four Country Survey (Australia, Canada, United Kingdom, United States) across five annual waves of surveying. Measurements Quitters were interviewed by telephone at varying durations of abstinence, ranging from 1 to 1472 days (about 4 years) post-quitting. Smoking-related beliefs and experiences (i.e. urges to smoke; outcome expectancies of smoking and quitting; and abstinence self-efficacy) were included in the survey. Findings Most theorized determinants of relapse changed over time in a manner theoretically associated with reduced risk of relapse, except most notably the belief that smoking controls weight, which strengthened. Change in these determinants changed at different rates: from a rapidly asymptoting log function to a less rapidly asymptoting square-root function. Conclusions Variation in patterns of change across time suggests that the relative importance of each factor to maintaining abstinence may similarly vary. [source] Do smoking attitudes predict behaviour?ADDICTION, Issue 10 2008A longitudinal study on the bi-directional relations between adolescents' smoking attitudes, behaviours ABSTRACT Aims Prevention and intervention programmes focus frequently upon retaining or creating negative attitudes towards smoking in an effort to prevent adolescents from smoking. As the focus upon attitudes is central in these programmes it is essential to know whether smoking attitudes actually precede smoking behaviour or, conversely, are affected by it. Therefore, in the present study we examined to what extent bi-directional relations existed between smoking attitudes and behaviour. Design Data were used from the three annual waves of the ,Family and Health' project. Setting Participants were asked to complete questionnaires individually at their homes. Participants Addresses of families consisting of two parents and two adolescents were obtained from the records of 22 municipalities in the Netherlands. At baseline, 428 families participated with a response rate of 94% at the third measurement. Measurements Self-reports were used to assess adolescents' smoking attitudes and behaviour. Associations between smoking attitudes and behaviour were tested using structural equation modelling. Findings Findings revealed that smoking attitudes did not predict smoking consistently over time. However, past smoking affected subsequent attitudes moderately, suggesting that adolescents who started to smoke developed less negative attitudes towards smoking. Conclusions The current findings imply that smoking behaviour predominantly shapes smoking-related attitudes, rather than vice versa. Focusing merely on smoking attitudes is probably not enough to prevent adolescents from smoking. [source] Attractions and constraints as determinants of relationship commitment: Longitudinal evidence from gay, lesbian, and heterosexual couplesPERSONAL RELATIONSHIPS, Issue 3 2000LAWRENCE A. KURDEK The proposition that commitment to a relationship is uniquely determined by forces that draw one to the relationship (attractions) and forces that prevent one from leaving the relationship (constraints) was tested with five annual waves of longitudinal data from two samples: both partners from 155 married couples and both partners from 57 gay couples and 50 lesbian couples. Growth curve analyses that controlled for the interdependence of partners' scores indicated that, for both heterosexual and gay/lesbian couples, variability in one's own commitment was uniquely predicted by one's own attractions and one's own constraints, interactions involving one's own attractions and one's own constraints, and one's partner's attractions. It is concluded that attractions and constraints exert unique dynamic effects on maintaining a close relationship. [source] Loneliness in adolescence: gene × environment interactions involving the serotonin transporter geneTHE JOURNAL OF CHILD PSYCHOLOGY AND PSYCHIATRY AND ALLIED DISCIPLINES, Issue 7 2010Eeske Van Roekel Background:, Loneliness is assumed to peak in early adolescence and to decrease throughout middle and late adolescence, but longitudinal confirmation of this tendency is lacking. Behavioral genetic studies with twin designs have found a significant genetic component for loneliness in children and adults, but no molecular genetic studies have been conducted to reveal the functional polymorphisms involved. Methods:, Associations among the serotonin transporter gene (5-HTTLPR), sex, parental support, and loneliness were examined in a longitudinal study spanning five annual waves (N = 306). Results:, Using latent growth curve modeling (LGCM), loneliness was found to be highest in early adolescence and slowly declined throughout adolescence. The 5-HTTLPR genotype was related to the development of loneliness, in that short allele carriers remained stable in loneliness over time, whereas adolescents with the long-long genotype decreased in loneliness. Interactions were found between maternal support and 5-HTTLPR genotype, showing that adolescents who perceived little support from their mothers and carried a short allele were at increased risk for developing loneliness. Conclusions:, Our study is the first to chart adolescent loneliness longitudinally and to examine the genetic underpinnings of loneliness. Our results contribute to a further understanding of the environmental and genetic basis of loneliness. Replication of our results is needed in both population-based and clinical samples. [source] |