None listed
Conditions
Brief summary
This study is a secondary analysis of longitudinal data from the Western Australian Pregnancy Cohort (Raine) Study. Data will be from participants at age 20- (baseline), 22- and 27-years (follow up). The aims of this study are to 1) investigate latent classes of multiple lifestyle behaviours amongst a sample of Australian emerging adults at age 20-years, and 2) determine whether the emergent latent classes are associated with symptoms of depression, anxiety, and stress at two follow-up time points in emerging adulthood (age 22- and 27-years). It is hypothesised that 1) unhealthy lifestyle behaviours will cluster together, and the same will be true for healthy lifestyle behaviours, and 2) unhealthy lifestyle clusters will predict poorer mental health at later time points compared to healthy lifestyle clusters. Healthy lifestyle is expected to be protective for mental health.
Interventions
The exposure is lifestyle health behaviours (i.e. diet quality, physical activity, sedentary behaviour, alcohol consumption, tobacco smoking, and recreational drug use). Lifestyle health behaviours were assessed when participants were 20-years of age and will be categorised using latent class analysis. Raine study participants completed all questionnaires at ages 20, 22, and 27. However, only lifestyle data at age 20 years will be used as an exposure in the current study and lifestyle data at ag
The exposure is lifestyle health behaviours (i.e. diet quality, physical activity, sedentary behaviour, alcohol consumption, tobacco smoking, and recreational drug use). Lifestyle health behaviours were assessed when participants were 20-years of age and will be categorised using latent class analysis. Raine study participants completed all questionnaires at ages 20, 22, and 27. However, only lifestyle data at age 20 years will be used as an exposure in the current study and lifestyle data at age 22 and 27 years will NOT be used. Outcome variables (collected at ages 22 and 27 years) will be described in the outcome sections. Measurement of exposures of interest: For the purposes of the current study, diet quality was measured by converting Food Frequency Questionnaire (FFQ) data into Dietary Approaches to Stop Hypertension (DASH) diet scores. Physical activity was dichotomised according to whether participants met/didn't meet Australian guidelines. Sedentary behaviour was measured by the average amount of time spent sitting per day and separated into quartiles. Alcohol consumption was based on the average number of standard drinks consumed per day. Recreational drugs were also categorized by frequency of use and participants were classified as either smokers or non-smokers based on whether they currently use tobacco. Each participant had a single observation at one time point for each exposure variable. Data are pre-existing from the Western Australian Pregnancy Cohort (Raine) Study, which has followed participants longitudinally since birth. The Raine Study commenced recruitment between 1989 and 1991 and is ongoing today. Data collection at age 20-years involved questionnaires and collection of anthropometric data. All data for the current study is sourced directly from the Raine Study (ACTRN12617001599369). Data is preexisting, therefore no additional involvement by participants was required for this study.
Sponsors
Deakin University
Eligibility
Sex/Gender
All
Age
20 Years to 27 Years
Healthy volunteers
Yes
Inclusion criteria
Participants were part of the Raine Study (ACTRN12617001599369). Participants had to have complete lifestyle and/or mental health data at baseline (20-years) and/or complete mental health data at both follow-up time points (22- and 27-years).
Exclusion criteria
Participants with a diagnosed eating disorder/weight problems were excluded from the study.
Outcome results
None listed