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Dive into the research topics where Jordana K. Bayer is active.

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Featured researches published by Jordana K. Bayer.


Australian and New Zealand Journal of Psychiatry | 1997

Predicting intentions to seek help from professional mental health services.

Jordana K. Bayer; Marilyn Y. Peay

Objective: This study investigates the factors related to the intention to seek professional help for psychological problems utilising Ajzen and Fishbeins theory of reasoned action [1,2]. Many of the variables identified in previous studies can be subsumed within this theory, which emphasises the importance of the subjective point of view of the individual. Method: One hundred and forty-two patients waiting for consultations at a community based general practice completed a questionnaire designed to assess the components of this theory as they relate to seeking help from mental health professionals. Results: The results of this study supported the prediction of the intention to seek help from a mental health professional from the variables ‘attitude toward the behaviour’ and ‘subjective norm’. However, personal attitudes toward seeking help were found to be more important than the approval or disapproval of significant others in predicting help-seeking intentions. Conclusions: Overall, the findings indicate that a significant factor influencing peoples decisions to utilise professional mental health services in Australia may be the belief that mental health professionals are not actually able to provide a great deal of help or support for peoples difficulties.


Journal of Paediatrics and Child Health | 2007

Sleep problems in young infants and maternal mental and physical health

Jordana K. Bayer; Harriet Hiscock; Anne Hampton; Melissa Wake

Aim:  Sleep problems in the second 6 months of life are common and associated with maternal depression. This paper extends previous research to (i) establish the prevalence of sleep problems in younger infants from a broader socio‐economic spectrum, (ii) examine the relationship between infant sleep problems and maternal physical, as well as mental, health, and (iii) explore mothers’ sleep quality as a potential mediator of this relationship.


Journal of Child Psychology and Psychiatry | 2008

Early childhood aetiology of mental health problems: a longitudinal population‐based study

Jordana K. Bayer; Harriet Hiscock; Obioha C. Ukoumunne; Anna Price; Melissa Wake

BACKGROUND Mental health problems comprise an international public health issue affecting up to 20% of children and show considerable stability. We aimed to identify child, parenting, and family predictors from infancy in the development of externalising and internalising behaviour problems by age 3 years. METHODS Design Longitudinal, population-based survey completed by primary caregivers when children were 7, 12, 18, 24 and 36 months old. Participants 733 children sequentially recruited at 6-7 months from routine well-child appointments (August-September 2004) across six socio-economically and culturally diverse government areas in Victoria, Australia; 589 (80%) retained at 3 years. Measures 7 months: sociodemographic characteristics, maternal mental health (Depression Anxiety Stress Scale (DASS)), substance misuse, home violence, social isolation, infant temperament; 12 months: partner relationship, parenting (Parent Behavior Checklist (PBC)); 18, 24 and 36 months: child behaviour (Child Behavior Checklist 1(1/2)-5 (CBCL)), PBC, DASS. RESULTS Sixty-nine percent of all families attending well-child clinics took part. The consistent and cumulative predictors of externalising behaviours were parent stress and harsh discipline. Predictors of internalising behaviours included small family size, parent distress, and parenting. Twenty-five percent of variation in early externalising behaviour and 17% of variation in early internalising behaviour was explained. CONCLUSIONS Effective and cost-efficient population approaches to preventing mental health problems early in childhood are urgently needed. Programmes must support parents in reducing personal stress as well as negative parenting practices.


Archives of Disease in Childhood | 2007

Improving infant sleep and maternal mental health: a cluster randomised trial

Harriet Hiscock; Jordana K. Bayer; Lisa Gold; Anne Hampton; Obioha C. Ukoumunne; Melissa Wake

Objectives: To determine whether a community-delivered intervention targeting infant sleep problems improves infant sleep and maternal well-being and to report the costs of this approach to the healthcare system. Design: Cluster randomised trial. Setting: 49 Maternal and Child Health (MCH) centres (clusters) in Melbourne, Australia. Participants: 328 mothers reporting an infant sleep problem at 7 months recruited during October–November 2003. Intervention: Behavioural strategies delivered over individual structured MCH consultations versus usual care. Main outcome measures: Maternal report of infant sleep problem, depression symptoms (Edinburgh Postnatal Depression Scale (EPDS)), and SF-12 mental and physical health scores when infants were 10 and 12 months old. Costs included MCH sleep consultations, other healthcare services and intervention costs. Results: Prevalence of infant sleep problems was lower in the intervention than control group at 10 months (56% vs 68%; adjusted OR 0.58 (95% CI: 0.36 to 0.94)) and 12 months (39% vs 55%; adjusted OR 0.50 (0.31 to 0.80)). EPDS scores indicated less depression at 10 months (adjusted mean difference −1.4 (−2.3 to −0.4) and 12 months (−1.7 (−2.6 to −0.7)). SF-12 mental health scores indicated better health at 10 months (adjusted mean difference 3.7 (1.5 to 5.8)) and 12 months (3.9 (1.8 to 6.1)). Total mean costs including intervention design, delivery and use of non-MCH nurse services were £96.93 and £116.79 per intervention and control family, respectively. Conclusions: Implementing this sleep intervention may lead to health gains for infants and mothers and resource savings for the healthcare system. Trial registration: Current Controlled Trial Registry, number ISRCTN48752250 (registered November 2004).


Australian and New Zealand Journal of Psychiatry | 2009

Systematic review of preventive interventions for children's mental health : what would work in Australian contexts?

Jordana K. Bayer; Harriet Hiscock; Katherine Scalzo; Megan Mathers; Myfanwy McDonald; Alison Morris; Joanna Birdseye; Melissa Wake

In childhood, mental health problems primarily consist of behaviour and emotional problems. These affect one in every seven children (i.e. 200 000 in Australia). Left untreated, up to 50% of preschool problems continue through the childhood years. Because of their high prevalence, population-based approaches will be needed to reduce their associated burden. The aim of the present study was therefore to identify evidence-based preventive interventions for behavioural and emotional problems of children aged 0–8 years. Randomized controlled trials of preventive interventions for behavioural and emotional problems were located by searching standard clinical databases and systematic reviews. The authors determined which programmes were effective and ineffective, dividing the effective programmes into those with high or low risk of trial bias. Among effective programmes, the most promising for delivery in Australian contexts were identified, selected for their strength of evidence, sample comparability to Australias population, and programme compatibility with Australias service system. Around 50 preventive interventions have been evaluated in randomized controlled trials. Most targeted childrens behavioural problems, and a few targeted emotional problems. Three US programmes have the best balance of evidence: in infancy, the individual Nurse Home Visitation Programme; at preschool age, the individual Family Check Up; at school age, the Good Behaviour Game class programme. Three parenting programmes in England and Australia are also worthy of highlight: the Incredible Years group format, Triple P individual format, and Parent Education Programme group format. Effective preventive interventions exist primarily for behaviour and, to a lesser extent, emotional problems, and could be disseminated from research to mainstream in Australia, ensuring fidelity to original programmes. Future research should develop programmes targeting emotional problems, and replicate effective programmes for behaviour problems in quality population translation trials. Randomized trial methods in staged roll-outs can determine population cost–benefits for childrens mental health without delaying dissemination.


BMJ | 2008

Universal parenting programme to prevent early childhood behavioural problems: cluster randomised trial

Harriet Hiscock; Jordana K. Bayer; Anna Price; Obioha C. Ukoumunne; Susan Rogers; Melissa Wake

Objective To determine whether a parenting programme, offered universally in primary care, can prevent behavioural problems in children and improve parenting and maternal mental health. Design Cluster randomised trial. Setting 40 primary care nursing centres (clusters) in Victoria, Australia. Participants 733 English speaking mothers of 8 month old children sequentially recruited from well child appointments; 656 retained at 24 months. Intervention Structured three session programme at age 8-15 months, co-led by well child providers and a parenting expert. The programme covered normal development and behaviour, strategies to increase desired behaviour, and strategies to reduce unwanted behaviour. Main outcome measures Maternal report of child externalising behaviour (child behavior checklist 1½-5 year old), parenting (parent behavior checklist), and maternal mental health (depression anxiety stress scales) at 18 and 24 months. Results At 18 months, child behaviour and parenting scores were similar in the two groups. At 24 months, externalising scores in the intervention and control groups were similar (mean 11.9 (SD 7.2) v 12.9 (7.4)); however, on the parent behavior checklist subscale scores, intervention group parents were less likely to report harsh/abusive parenting (mean 38.9 (SD 7.7) v 40.5 (8.8); adjusted mean difference −1.83, 95% confidence interval −3.12 to −0.55) and unreasonable expectations of child development (40.9 (9.9) v 42.7 (9.6); −2.18, −3.74 to −0.62). Mean scores for nurturing parenting and maternal mental health were similar in the two groups at both times. Conclusions A universal parenting programme resulted in modest improvement in parenting factors that predict behavioural problems in children but did not reduce externalising behavioural problems or affect maternal mental health at 2 years. Trial registration ISRCTN 77531789.


Pediatrics | 2011

Risk Factors for Childhood Mental Health Symptoms: National Longitudinal Study of Australian Children

Jordana K. Bayer; Obioha C. Ukoumunne; Nina Lucas; Melissa Wake; Katherine Scalzo; Jan M. Nicholson

OBJECTIVE: To determine predictors of child externalizing (behavioral) and internalizing (emotional) symptoms in a national population sample. METHODS: Data were collected in 3 biennial waves (2004, 2006, and 2008) from 2 cohorts in the Longitudinal Study of Australian Children, initially including 5107 children 0 to 1 year of age and 4983 children 4 to 5 years of age. The primary outcomes were child externalizing and internalizing symptoms. Relationships between potential risk factors and child mental health outcomes were described by using linear regression. RESULTS: In unadjusted analyses, childrens mental health symptoms were predicted by a large number of risk factors. In multivariate models, early childhood factors (birth through 5 years) explained 30% and 18% of variations in externalizing and internalizing symptoms, respectively, at 4 to 5 years of age. Middle childhood (5–9 years of age) factors explained 20% and 23% of variations in externalizing and internalizing symptoms, respectively, at 8 to 9 years of age. Harsh discipline was a strong consistent predictor of externalizing symptoms in both age groups, whereas poorer child physical health, maternal emotional distress, harsh discipline, and overinvolved/protective parenting (younger cohort only) predicted internalizing symptoms consistently. CONCLUSIONS: National data on predictors of child mental health symptoms highlighted a small number of significant risk factors, situated in the family context and present from a very young age. This knowledge is informing population-level, randomized, prevention trials of family support programs.


Pediatrics | 2014

Preventing Early Infant Sleep and Crying Problems and Postnatal Depression: A Randomized Trial

Harriet Hiscock; Fallon Cook; Jordana K. Bayer; Ha N. D. Le; Fiona Mensah; Warren Cann; Brian Symon; Ian St James-Roberts

OBJECTIVE: To evaluate a prevention program for infant sleep and cry problems and postnatal depression. METHODS: Randomized controlled trial with 781 infants born at 32 weeks or later in 42 well-child centers, Melbourne, Australia. Follow-up occurred at infant age 4 and 6 months. The intervention including supplying information about normal infant sleep and cry patterns, settling techniques, medical causes of crying and parent self-care, delivered via booklet and DVD (at infant age 4 weeks), telephone consultation (8 weeks), and parent group (13 weeks) versus well-child care. Outcomes included caregiver-reported infant night sleep problem (primary outcome), infant daytime sleep, cry and feeding problems, crying and sleep duration, caregiver depression symptoms, attendance at night wakings, and formula changes. RESULTS: Infant outcomes were similar between groups. Relative to control caregivers, intervention caregivers at 6 months were less likely to score >9 on the Edinburgh Postnatal Depression Scale (7.9%, vs 12.9%, adjusted odds ratio [OR] 0.57, 95% confidence interval [CI] 0.34 to 0.94), spend >20 minutes attending infant wakings (41% vs 51%, adjusted OR 0.66, 95% CI 0.46 to 0.95), or change formula (13% vs 23%, P < .05). Infant frequent feeders (>11 feeds/24 hours) in the intervention group were less likely to have daytime sleep (OR 0.13, 95% CI 0.03 to 0.54) or cry problems (OR 0.27, 95% CI 0.08 to 0.86) at 4 months. CONCLUSIONS: An education program reduces postnatal depression symptoms, as well as sleep and cry problems in infants who are frequent feeders. The program may be best targeted to frequent feeders.


Depression and Anxiety | 2011

Translational research to prevent internalizing problems early in childhood

Jordana K. Bayer; Ronald M. Rapee; Harriet Hiscock; Obioha C. Ukoumunne; Catherine Mihalopoulos; Melissa Wake

This article discusses the importance of and one approach to translational research to prevent internalizing problems very early in life. The World Health Organisation (WHO) predicts that by 2,030 internalizing problems will be second only to HIV/AIDS in the international burden of disease. Internalizing problems affect one in every seven school age children, with negative impacts on peer relations, school engagement, and later mental health, adult relationships, and employment. There is persuasive evidence that intervention in the preschool years can have a cost‐effective impact on general developmental outcomes, compared to later school or adult intervention. However, the development of early childhood prevention for internalizing problems is in its infancy. Two significant risk factors for child internalizing problems are temperamental inhibition (characterized by fearfulness and withdrawal) and overinvolved/protective parenting practices. Rapee et al. have conducted two randomized “efficacy” trials with inhibited preschoolers in which a parenting group intervention reduced internalizing disorders up to 3 years later. Translational “effectiveness” research is now underway at the population level, to determine the balance of benefits and harms of systematically screening preschoolers for inhibition and subsequent intervention for all those affected. This rigorous public health research, followed by effective dissemination, addresses gaps identified in the WHO Prevention of Mental Disorders report. Depression and Anxiety, 2011.© 2010 Wiley‐Liss, Inc.


Australian and New Zealand Journal of Psychiatry | 2012

Development of children's internalising and externalising problems from infancy to five years of age

Jordana K. Bayer; Obioha C. Ukoumunne; Megan Mathers; Melissa Wake; Nadia Abdi; Harriet Hiscock

Objective: Mental health problems are an international public health issue affecting a substantial proportion of youth. This study aimed to identify groups of young children exhibiting distinct internalising and externalising symptom trajectories across early childhood compared to existing norms. Linear regression then identified child, parenting and family predictors from infancy in the development of internalising and externalising behaviours at age 5 years. Method: This consisted of a follow-up of 5-year-old children from a longitudinal, population-based study with earlier surveys having been completed by primary caregivers when the children were aged 7, 12, 18, 24 and 36 months. Five hundred 5-year-olds (68% retention) were included from 733 children recruited at age 6–7 months from routine well-child appointments across six socio-economically diverse government areas in Victoria, Australia. Mothers then completed a further questionnaire when their children reached 5 years of age, repeating the instruments included in previous waves. The primary outcomes were the Child Behavior Checklist (CBCL), 1.5–5 internalising and externalising symptoms (T-scores in relation to norms) and behaviours (raw scores). Results: Across early childhood, three distinct profiles for each of the internalising and externalising symptoms (T-scores) were identified and compared to CBCL norms. Around 20% of this Australian child population exhibited consistently elevated symptoms for each problem. Regarding aetiology, longitudinally the strongest predictors of internalising behaviours at 5 years of age were harsh discipline, maternal stress, having no older siblings, single parenthood and maternal substance misuse. The strongest predictors of externalising behaviours at 5 years of age were male sex, harsh discipline and maternal stress. The predictors explained 22% of the variation in internalising behaviours and 24% of the variation in externalising behaviours at 5 years. Conclusions: Starting as early as the toddler period, effective population approaches to preventing mental health problems are needed. Randomised trials of preventive interventions focused on improving parenting practices and reducing maternal stress are under way.

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Harriet Hiscock

Royal Children's Hospital

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Melissa Wake

University of Melbourne

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Fiona Mensah

Royal Children's Hospital

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Ann Sanson

University of Melbourne

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