Browsing by Author "Bullen C"

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Nationwide Implementation of Unguided Cognitive Behavioral Therapy for Adolescent Depression: Observational Study of SPARX
(JMIR Publications, 2024-09-03) Fleming T; Lucassen M; Frampton C; Parag V; Bullen C; Merry S; Shepherd M; Stasiak K
Background: Internet-based cognitive behavioral therapy (iCBT) interventions are effective in clinical trials; however, iCBT implementation data are seldom reported. Objective: The objective of this study is to evaluate uptake, adherence, and changes in symptoms of depression for 12-to 19-year-olds using an unguided pure self-help iCBT intervention (SPARX; Smart, Positive, Active, Realistic, X-factor thoughts) during the first 7 years of it being publicly available without referral in Aotearoa New Zealand. Methods: SPARX is a 7-module, self-help intervention designed for adolescents with mild to moderate depression. It is freely accessible to anyone with a New Zealand Internet Protocol address, without the need for a referral, and is delivered in an unguided “serious game” format. The New Zealand implementation of SPARX includes 1 symptom measure—the Patient Health Questionnaire adapted for Adolescents (PHQ-A)—which is embedded at the start of modules 1, 4, and 7. We report on uptake, the number of modules completed, and changes in depressive symptoms as measured by the PHQ-A. Results: In total, 21,320 adolescents aged 12 to 19 years (approximately 2% of New Zealand 12‐ to 19-year-olds) registered to use SPARX. Of these, 63.6% (n=13,564; comprising n=8499, 62.7% female, n=4265, 31.4% male, and n=800, 5.9% another gender identity or gender not specified; n=8741, 64.4% New Zealand European, n=1941, 14.3% Māori, n=1202, 8.9% Asian, n=538, 4.0% Pacific, and n=1142, 8.4% another ethnic identity; mean age 14.9, SD 1.9 years) started SPARX. The mean PHQ-A at baseline was 13.6 (SD 7.7) with 16.1% (n=1980) reporting no or minimal symptoms, 37.4% (n=4609) reporting mild to moderate symptoms (ie, the target group) and 46.7% (n=5742) reporting moderately severe or severe symptoms. Among those who started, 51.1% (n=6927) completed module 1, 7.4% (n=997) completed at least 4 modules, and 3.1% (n=416) completed all 7 modules. The severity of symptoms reduced from baseline to modules 4 and 7. Mean PHQ-A scores for baseline, module 4, and module 7 for those who completed 2 or more assessments were 14.0 (SD 7.0), 11.8 (SD 7.9), and 10.5 (SD 8.5), respectively; mean difference for modules 1-4 was 2.2 (SD 5.7; P<.001) and for modules 1-7 was 3.6 (SD 7.0; P<.001). Corresponding effect sizes were 0.38 (modules 1-4) and 0.51 (modules 1-7). Conclusions: SPARX reached a meaningful proportion of the adolescent population. The effect size for those who engaged with it was comparable to trial results. However, completion was low. Key challenges included logistical barriers such as slow download speeds and compatibility with some devices. Ongoing attention to rapidly evolving technologies and engagement with them are required. Real-world implementation analyses offer important insights for understanding and improving the impact of evidence-based digital tools and should be routinely reported.
Recruitment and Retention of Parents of Adolescents in a Text Messaging Trial (MyTeen): Secondary Analysis From a Randomized Controlled Trial
(JMIR Publications, 2021-12-20) Chu JTW; Wadham A; Jiang Y; Stasiak K; Shepherd M; Bullen C
Background: Parenting programs are well established as an effective strategy for enhancing both parenting skills and the well-being of the child. However, recruitment for family programs in clinical and nonclinical settings remains low. Objective: This study aims to describe the recruitment and retention methods used in a text messaging program (MyTeen) trial for parents of adolescents (10-15 years) and identify key lessons learned. We aim to provide insights and direction for researchers who seek to recruit parents and build on the limited literature on recruitment and retention strategies for parenting program trials. Methods: A recruitment plan was developed, monitored, and modified as needed throughout the course of the project. Strategies to facilitate recruitment were identified (eg, program content and recruitment material, staff characteristics, and study procedures). Traditional and web-based recruitment strategies were used. Results: Over a 5-month period, 319 parents or caregivers expressed interest in our study, of which 221 agreed to participate in the study, exceeding our recruitment target of 214 participants. Attrition was low at the 1-month (4.5% overall; intervention group: n=5, 4.6%; control group: n=5, 4.5%) and 3-month follow-ups (9% overall; intervention group: n=10, 9.2%; control group: n=10, 8.9%). Conclusions: The use of web-based recruitment strategies appeared to be most effective for recruiting and retaining parents in a text-messaging program trial. However, we encountered recruitment challenges (ie, underrepresentation of ethnic minority groups and fathers) similar to those reported in the literature. Therefore, efforts to engage ethnic minorities and fathers are needed. Trial Registration: Australian New Zealand Clinical Trials Registry ACTRN12618000117213; https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=374307
Vaping cessation strategies and triggers for relapse amongst people from New Zealand who have vaped
(John Wiley and Sons Australia, Ltd on behalf of Australasian Professional Society on Alcohol and other Drugs, 2025-06-11) Rahimi M; Lang B; Shahab L; Brown J; Palmer A; Kemper J; Bullen C; Laking G; Nosa V; Parag V; Walker N
Introduction: In New Zealand (NZ) vapes (e-cigarettes) are a government-endorsed strategy to help people stop smoking, as well as being used recreationally by people who have never smoked. Nicotine vapes are addictive and many users want to quit. We surveyed current and past users of nicotine vapes to gather insights about their vaping cessation reasons and strategies. Methods: In December 2022, we undertook a web-based survey in NZ using market research survey panels. Eligible panellists were aged ≥16 years, did not currently smoke and had vaped nicotine. Questions focused on demographics, smoking and vaping status, vaping dependence, strategies used to quit vaping, and triggers for vaping relapse. Results: One thousand one hundred nineteen participants completed the survey: 144 had never smoked; 975 used to smoke, 401 currently vaped nicotine, and 718 used to vape nicotine. Participants were predominantly aged ≥25 years (89%); 63% were female, and 21% were Indigenous Māori and/or Pacific. Predictors of vaping dependence were having smoked or vaped for ≥2 years and vaping >3% nicotine. Reasons for trying to quit vaping included health concerns, disliking feeling dependent, and cost. Quitting strategies included stopping abruptly, nicotine tapering and family/friend support. Triggers for relapse were stress, being around others who vaped and nicotine withdrawal. Discussion and Conclusion: In NZ reasons to quit and triggers to return to vaping are similar to quitting smoking. Until more research is available, it seems appropriate to support people who wish to stop vaping with similar strategies used to support people to quit smoking.