Attrition in a Longitudinal Drug Abuse Prevention Study

Fan, Arthur Yin; Pentz, Mary Ann; Dwyer, Jim; Bernstein, Karen; Li, Chaoyang

doi:10.1080/14623730.2002.9721856

Cited by 7 publications

(6 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Tracked intervention participants (Weekly X = .11, SD = .02; Monthly X = .13, SD = .03) did not demonstrate significant differences in marijuana use compared to non-tracked intervention participants (Weekly X = .13, SD = .02; Monthly X = .16, SD = .03). Baseline differences in marijuana use by tracked versus non-tracked participants is a finding consistent with other long-term drug use survey studies (e.g., Newcomb, 1997; Orlando et al, 2005; Sun et al, 2006) and reported previously for earlier waves on our study (Fan et al, 2002), although such differences have not been typically found by intervention and control groups.…”

Section: Resultssupporting

confidence: 92%

See 1 more Smart Citation

Protecting against intergenerational problem behavior: Mediational effects of prevented marijuana use on second-generation parent–child relationships and child impulsivity

Riggs¹,

Chou²,

Pentz³

2009

Drug and Alcohol Dependence

Self Cite

View full text Add to dashboard Cite

BACKGROUND-The aims of the study were to identify pathways from parent marijuana use to child problem behavior and parent-child relationships, and to evaluate whether effects of an earlier prevention program delivered to parents when they themselves were early adolescents would have a protective effect on these relationships one generation later.METHODS-Structural equation models were applied to the data of a second generation study of a drug abuse prevention trial. Models assessed whether there were sustained marijuana prevention effects on adults who had at least one school-age child at the end of the emerging adulthood period (age 26, N=257), and whether these effects mediated subsequent parent-child relationships and child impulsivity when parents were between the ages of 28 and 34.RESULTS-Participants originally assigned to the program group used significantly less marijuana in early adulthood than did controls. In turn, parental marijuana use was positively related to child impulsivity and negatively to parental warmth, but not significantly related to parental aggression. CONCLUSIONS-Results suggest both a direct relationship from parental marijuana use to child impulsivity, as well as indirect relationships through parent-child interactions. Results also strongly support a role for early adolescent prevention programs for drug use, both for participants' own longterm benefit, as well as for the benefit of their future children.

show abstract

Section: Resultssupporting

confidence: 92%

“…Fan et al, 2002). For this study, analyses of attrition and missingness were conducted at critical points in our evaluation design.…”

Section: Methodsmentioning

confidence: 99%

Protecting against intergenerational problem behavior: Mediational effects of prevented marijuana use on second-generation parent–child relationships and child impulsivity

Riggs¹,

Chou²,

Pentz³

2009

Drug and Alcohol Dependence

Self Cite

View full text Add to dashboard Cite

show abstract

“…To our knowledge this is the first study to monitor participants for 16 years to assess the relationship between early adolescent weekly smoking trajectories and adult nicotine dependence, but 37% of the original sample was lost to design or attrition. Previously, we showed that smokers were more likely than nonsmokers to be missing from measurements over time, although we found no effects of program6missing status on smoking or drug use (Fan, Pentz, Dwyer, Bernstein, & Li, 2002). Thus, trajectories, especially the early stable user trajectory, may be slightly underestimated.…”

Section: Discussioncontrasting

confidence: 70%

Adolescent to emerging adulthood smoking trajectories: When do smoking trajectories diverge, and do they predict early adulthood nicotine dependence?

Riggs

Chou

et al. 2007

CNTR

Self Cite

137

120

View full text Add to dashboard Cite

This study evaluated the adolescent tobacco-use trajectories that predict nicotine dependence in early adulthood and when these trajectories start to diverge. As part of a follow-up to a large prevention trial, the present study evaluated 1,017 individuals from early adolescence (age 12) to early adulthood (age 28). Participants were recruited from eight middle schools in Kansas City, Missouri. Students were entering 6th grade or 7th grade at baseline. Smoking was evaluated at baseline, 6 months, at annual follow-ups through high school, and every 18 months thereafter until age 28. The study goals were to determine (a) whether distinct weekly tobacco-use trajectories could be identified between early adolescence and emerging adulthood (ages 12-24); (b) when during development these trajectories diverged; and (c) which trajectories could predict nicotine dependence in early adulthood (ages 26-28). A four-trajectory mixed model (abstainers, low users, late stable users, and early stable users) demonstrated the best fit to the data. Membership in increasingly high-use trajectories placed participants at greater relative risk for becoming nicotine dependent than did membership in lower-use trajectories. General linear models showed greater weekly cigarette consumption for early stable users as early as the first wave of data collection (age 12) and significant differences among all other trajectories by age 15. The findings support the implementation of smoking prevention programs early in middle or junior high school and suggest that adolescents who are already smoking at least two cigarettes per week by age 12 may benefit from additional addiction prevention efforts.

show abstract

“…The missing rate and the missing rate by drug use status did not differ between intervention and control groups. 27 Multiple imputation was performed using Mplus (Version 6.11). Missing data were imputed from a variance covariance model, where all variables in the data set were assumed to be dependent variables.…”

Section: Methodsmentioning

confidence: 99%

Changes in Friends’ and Parental Influences on Cigarette Smoking From Early Through Late Adolescence

Liao¹,

Huang²,

Huh³

et al. 2013

Journal of Adolescent Health

Self Cite

View full text Add to dashboard Cite

Purpose This study examined the changes in friends’ and parental influences on cigarette smoking across two developmentally distinct social environments for adolescents: junior high school and high school. Methods Longitudinal data consisting of seven repeated measures following 1,001 adolescents from 7th to 12th grade was obtained from the Midwestern Prevention Project. A two-piece Growth Curve Model (GCM) was used to assess the growth trajectory of current cigarette use: one piece for the junior high school period, and the other for the high school period. Perceived friends’ and parental cigarette use were each used as a time-varying covariate in separate GCMs. Results Effects of friends’ and parental cigarette use remained significant on adolescent cigarette smoking across the two developmental periods. The magnitude of friends’ effect was in general higher during junior high school than high school. The magnitude of the parental effect remained relatively stable between the two periods. However, decreasing trends in both effects were observed from 10th to 12th grade. Gender differences also emerged. Friends’ and parental effects were greater for girls in their early high school years, whereas friends’ effect decreased in magnitude among girls and increased among boys during high school. Conclusions The transition from junior high school to high school represents an opportunity for interventions to counteract peer influence since such influence appeared to be much weaker during this period. However, interventions should continue to target parents as their behavior remains influential through the end of high school.

show abstract

Attrition in a Longitudinal Drug Abuse Prevention Study

Cited by 7 publications

References 34 publications

Protecting against intergenerational problem behavior: Mediational effects of prevented marijuana use on second-generation parent–child relationships and child impulsivity

Protecting against intergenerational problem behavior: Mediational effects of prevented marijuana use on second-generation parent–child relationships and child impulsivity

Adolescent to emerging adulthood smoking trajectories: When do smoking trajectories diverge, and do they predict early adulthood nicotine dependence?

Changes in Friends’ and Parental Influences on Cigarette Smoking From Early Through Late Adolescence

Contact Info

Product

Resources

About