The Association Between Hearing Impairment and Problem Behaviors in 11-Year-Old Pacific Children Living in New Zealand.

OBJECTIVES: Hearing impairment in childhood is a serious disability that can impose a heavy social and economic burden on individuals and families. It was hypothesized that hearing loss or middle ear disease in 11-year-old Pacific children living in New Zealand would be associated with higher levels of engagement in (1) delinquent behaviors, and (2) clinical level internalizing and externalizing problem behaviors than Pacific children with no hearing loss or middle ear disease. Based on earlier findings, peer pressure, self-perception, physical punishment (slapping), sex, and ethnicity were controlled for in the association between hearing difficulties and behavioral outcomes. DESIGN: In the school setting, pure-tone audiometry and immittance audiometry assessments were used to establish the hearing level in 11-year-old Pacific children (n = 920). These children also completed multidisciplinary questionnaires, which included questions about involvement in delinquent behaviors, peer pressure, and self-perception. In the home setting, maternal reports were gathered on internalizing and externalizing problem behaviors in their offspring, their parenting style, and sociodemographic details. RESULTS: A significant effect of hearing level was detected for the odds of reporting mild delinquency versus no delinquency (odds ratio: 1.02, 95% CI: 1.00 to 1.05), and odds of moderate delinquency versus no delinquency (odds ratio: 0.97, 95% CI: 0.94 to 1.00). No significant effect was detected for hearing level and severe delinquency or internalizing or externalizing behavioral problems in the clinical range. Middle ear disease (abnormal tympanogram in the worse ear) was not significantly associated with delinquency at any level or with internalizing behaviors in the clinical range. However, children with middle ear disease were significantly less likely than all other participants to exhibit disruptive externalizing behavior in the clinical range. CONCLUSIONS: Relatively young children with hearing loss reported engagement in moderate levels of delinquency that represent serious antisocial and potentially violent acts. This finding provides evidence of the significant effect that hearing loss has on child behavior. This association between hearing loss and moderate delinquency requires ethnic-specific interventions that are targeted for maximum benefit at appropriate times in childhood to mitigate potentially long-term health, educational, and behavioral risks.

Integrating health, education and culture in predicting Pacific children's English receptive vocabulary at 6 years: A classification tree approach.

AIM: Pacific children fare poorly on health and educational outcomes, including literacy. Early interventions are considered critical in reducing educational disparities. A prediction model was constructed to analyse the factors associated with Pacific children's English receptive vocabulary, an important component of English language development. METHODS: A birth cohort study of Pacific children was used to construct a classification tree model and predict the proportions of Pacific children who performed strongly in a standardised test of English receptive vocabulary at 6 years of age (n = 1019). Classification trees were constructed using 10-fold cross-validation (CV) and pruned using the one-standard-error rule. Prediction errors were directly estimated using leave-one-out CV. RESULTS: Analyses of misclassification errors from the pruned model gave false negative and positive rates of 19 and 19% from re-substitution and 54 and 21% from leave-one-out CV estimation, respectively. Of the predictors, maternal acculturation, small birthweight and performance in early developmental screening test at 4 years of age were found to have the highest goodness of split. CONCLUSIONS: The cultural environment to which Pacific children were exposed in early childhood, indicated by the maternal acculturation, was more crucial in distinguishing children with strong English-receptive vocabulary skills than socio-economic or prenatal conditions. This highlights the importance of integrating the cultural environment into designing measures for facilitating Pacific children's language development.

Hearing and ear status of Pacific children aged 11 years living in New Zealand: the Pacific Islands families hearing study.

OBJECTIVE: This study aimed to determine the prevalence of hearing loss and ear problems in Pacific children, and investigate current and past demographic, health and social factors potentially associated with hearing and ear problems. DESIGN: A cross-sectional observational study design nested within a birth cohort was employed. STUDY SAMPLE: Nine-hundred-twenty Pacific children aged 11 years were audiologically assessed. Using average hearing thresholds at 500, 1k and 2k Hz, 162 (18%) right and 197 (21%) left ears had ≥20 dB hearing loss. Hearing loss was mild (20-39 dB) in most cases; 2% of ears had moderate to moderate-severe (40-69 dB) hearing loss. However, only 101 (11%) children had normal peripheral hearing defined by passing hearing threshold, tympanogram and distortion product otoacoustic emission assessments. Those with confirmed middle ear disease at age 2 years had significantly increased odds of a non-Type A tympanogram (adjusted odds ratio: 2.00; 95% confidence interval: 1.56, 2.50) when re-assessed at age 11 years. CONCLUSIONS: Hearing loss, abnormal tympanograms, and auditory processing difficulties were present in many Pacific children. Interventions are also urgently needed to mitigate the effect of the longstanding ear disease likely to be present for many Pacific children.

Assessing the impact of the COVID-19 pandemic on childhood vaccine uptake with administrative data.

This study examines the impact of the COVID-19 pandemic on childhood vaccination coverage in New Zealand using population-wide administrative data. For each immunisation event from ages 6 weeks to 4 years, we compare vaccine uptake of children who became eligible for immunisation during the pandemic to earlier-born cohorts whose immunisations were due before the pandemic. We find that the initial phase of the pandemic had, on average, small or nil effects on timely immunisation at the four infancy events, but a large effect at the 4-year event of -15 percentage points. Nine months after eligibility, catch-up among the pandemic-affected cohorts was largely achieved for the infancy immunisations, but 4-year coverage remained 6 percentage points below pre-pandemic levels. Vaccine uptake at 4 years initially dropped most among children of European ethnicity and of non-beneficiary parents but catch-up quickly surpassed their Maori, Pacific, and beneficiary counterparts for whom sizeable gaps in coverage below pre-pandemic levels remained at the end of our observation period. The pandemic thus widened pre-existing inequalities in immunisation coverage.

Exploring the impact of the COVID-19 pandemic on perceptions of national scheduled childhood vaccines among Maori and Pacific caregivers, whanau, and healthcare professionals in Aotearoa New Zealand.

In Aotearoa New Zealand, there has been a marked decrease in the uptake of routine childhood vaccinations since the onset of the COVID-19 pandemic, particularly among Maori and Pacific children. This Maori and Pacific-centered research used an interpretive description methodology. We undertook culturally informed interviews and discussions with Maori and Pacific caregivers (n = 24) and healthcare professionals (n = 13) to understand their perceptions of routine childhood vaccines. Data were analyzed using reflexive thematic analysis and privileged respective Maori and Pacific worldviews. Four themes were constructed. "We go with the norm" reflected how social norms, health personnel and institutions promoted (and sometimes coerced) participants' acceptance of routine vaccines before the pandemic. "Everything became difficult" explains how the pandemic added challenges to the daily struggles of whanau (extended family networks) and healthcare professionals. Participants noted how information sources influenced disease and vaccine perceptions and health behaviors. "It needed to have an ethnic-specific approach" highlighted the inappropriateness of Western-centric strategies that dominated during the initial pandemic response that did not meet the needs of Maori and Pacific communities. Participants advocated for whanau-centric vaccination efforts. "People are now finding their voice" expressed renewed agency among whanau about vaccination following the immense pressure to receive COVID-19 vaccines. The pandemic created an opportune time to support informed parental vaccine decision-making in a manner that enhances the mana (authority, control) of whanau. Maori and Pacific-led vaccination strategies should be embedded in immunization service delivery to improve uptake and immunization experiences for whanau.

Pacific Islands Families Study: Household Food Security during Pregnancy and Secondary School Educational Achievement.

Nutritional environment in early life is a key factor for brain development and function. It is important to understand the relationship between nutrition in early life and academic achievement in adolescence. The birth cohort of the Pacific Islands Families (PIF) study was born in the year 2000. When their child was six weeks old, mothers were asked questions concerning food security over the past year. Two binary measures of food security were derived as previously used in PIF and also by the Ministry of Health (MOH). In 2020, records of academic achievement from the National Certificate of Educational Achievement (NCEA) for 649 (317 female, 332 male) cohort members showed progressive achievement at levels 1, 2, and 3 of NCEA and allowed University Entrance (UE) to be assessed. The prevalence of food insecurity was not different for sex but high at 29% and 42% using the PIF and MOH definitions of food insecurity, respectively. More females (27%) than males (18%) achieved UE as their highest qualification, and more males (40%) than females (31%) achieved NCEA levels 1 or 2 as their highest qualification. UE was achieved by 25% of those born into food-secure households and 17% from food-insecure households. Logistic regression demonstrated that the odds of achieving UE were 1.8-fold (95% CI 1.2, 2.6, p = 0.003) higher in females than males and, independently, 1.6-fold (95% CI 1.1, 2.5 p = 0.026) higher if the household was food secure. This work emphasises the importance of maternal and early-life food security for subsequent academic achievement and the well-being of future generations.

The relationship between sleep duration and health among Pacific adolescents within New Zealand: Findings from the Pacific Islands families study.

OBJECTIVE: Sleep insufficiency is bi-directionally associated with adverse behavioural, physical and mental health outcomes in paediatric populations. However, little is known about the degree of sleep insufficiency and its effect on Pacific adolescents' wellbeing. METHODS: A cross-sectional study of 14-year old Pacific adolescents nested within a longitudinal birth cohort was conducted. Self-reported sleep duration was related to sentinel physical, mental, and risk taking behaviour measures in crude and adjusted logistic regression models. Complete case and multiple imputed analyses were conducted. RESULTS: 916 Pacific adolescents were eligible, with a mean age of 14.2 years. Valid sleep data were available from 828 (90.4%) participants, with only 220 (26.6%) meeting the recommended amount of sleep. Insufficient sleep duration was associated with significantly higher rates of depressive symptoms and risk taking behaviours. In multiple imputed analyses, increased body mass index was also significantly related. CONCLUSIONS: Sleep insufficiency is ubiquitous among Pacific adolescents and associated with negative impacts on their health and wellbeing. IMPLICATIONS FOR PUBLIC HEALTH: Insufficient sleep duration is amenable to change. Bespoke, culturally responsive public health strategies that draw attention to the importance of positive sleep practices are needed. Particularly, among adolescents who are at risk of experiencing the greatest burden of insufficient sleep.

Understanding suicidality in Pacific adolescents in New Zealand using network analysis.

INTRODUCTION: Pacific adolescents in New Zealand (NZ) are three to four times more likely than NZ European adolescents to report suicide attempts and have higher rates of suicidal plans. Suicidal thoughts, plans, and attempts, termed suicidality in this study, result from a complex dynamic interplay of factors, which emerging methodologies like network analysis aim to capture. METHODS: This study used cross-sectional network analysis to model the relationships between suicidality, self-harm, and individual depression symptoms, whilst conditioning on a multi-dimensional set of variables relevant to suicidality. A series of network models were fitted to data from a community sample of New Zealand-born Pacific adolescents (n = 550; 51% male; Mean age (SD) = 17 (0.35)). RESULTS: Self-harm and the depression symptom measuring pessimism had the strongest associations with suicidality, followed by symptoms related to having a negative self-image about looks and sadness. Nonsymptom risk factors for self-harm and suicidality differed markedly. CONCLUSIONS: Depression symptoms varied widely in terms of their contribution to suicidality, highlighting the valuable information gained from analysing depression at the symptom-item level. Reducing the sources of pessimism and building self-esteem presented as potential targets for alleviating suicidality amongst Pacific adolescents in New Zealand. Suicide prevention strategies need to include risk factors for self-harm.

Pre-Teen Gang Involvement Is Associated With Teenage Gambling Behavior: Exploratory Findings From a Longitudinal Cohort Study of Pacific Youth in New Zealand.

Pacific youth in New Zealand have a disproportionately high risk for gambling and gang involvement compared with New Zealand European youth. Limited evidence indicates that youth gang involvement is associated with problem gambling; no research shows if it is associated with gambling. We conducted exploratory secondary analyses of data from 1063 Pacific youth and their mothers using data from two time points (age nine and 14 years) from a longitudinal cohort study. Gang involvement at age nine years was significantly associated with gambling at age 14 years, with adjusted odds of 2.25 (95% CI [1.16, 4.37]). Of confounders, having a mother with a partner and Cook Islands ethnicity appeared protective against gambling at age 14 years. Despite some study limitations, as youth gambling can lead to subsequent adult problem gambling, our findings highlight the importance of understanding why Pacific youth join gangs, to inform public health policies to reduce the potential for future development of harmful behaviors.

Pacific Islands Families Study: Patterns of Intimate Partner Violence Among Pacific Mothers.

Intimate partner violence (IPV) is a widespread social problem affecting all populations regardless of gender, race, and socioeconomic status. The aims of this study were to examine (a) patterns of IPV among Pacific women living in New Zealand and (b) the risk and protective factors associated with IPV perpetration and victimization. As part of the longitudinal Pacific Islands Families (PIF) Study, maternal interviews, which included reports about IPV, acculturation, and sociodemographic characteristics, were administered at phases 6 weeks, 2, 6, 11, and 14 years postpartum. Age had a significant effect on perpetration of both minor and severe perpetration of IPV, and on being a victim of minor IPV. However, no significant effect was found for severe victimization. Cultural alignment also had a significant effect on perpetration of IPV with Pacific mothers who were strongly aligned to their traditional Pacific culture being significantly less likely to report minor or severe IPV perpetration compared with Pacific mothers who were closely aligned to western culture. Single mothers reported significantly more minor victimization, and those mothers who were more highly educated and were in a higher income bracket were significantly less likely to report severe physical IPV victimization. These findings can inform the timing and targeting of culturally appropriate violence prevention efforts in adolescence and young adulthood that focus on the development of healthy intimate partner relationships and effective methods of conflict resolution.

Parental education related to their children's health in late childhood and early adolescence for Pacific families within New Zealand.

Pacific people continue to carry a disproportionately heavy social and health burden relative to their non-Pacific peers in New Zealand, and those with less formal education are experiencing social and health declines. Improving education and educational needs is seen as being central to decreasing these health inequities. While expansive, the empirical evidence-base supporting this stance is relatively weak and increasingly conflicting. Using a large birth cohort of 1,368 eligible Pacific children, together with their mothers and fathers, this study longitudinally investigates the relationship between paternal education levels and sentinel measures of their children's physical health, mental health and health risk taking behaviours during late childhood and early adolescence. In adjusted analyses, it was found that mothers and fathers who undertook further schooling over the 0-6 years postpartum period had children with significantly lower logarithmically transformed body mass index increases at 11-years and 14-years measurement waves compared to 9-years levels than those who did not study (p = 0.017 and p = 0.022, respectively). Furthermore, fathers who undertook further schooling over this 0-6 years postpartum period also had children with significantly lower odds of risk taking behaviours (p = 0.013). These results support policy aimed at increasing educational opportunities for Pacific people in New Zealand.

Risk factors for depression in Pacific adolescents in New Zealand: A network analysis.

BACKGROUND: Network analysis provides opportunities to gain a greater understanding of the complex interplay of risk factors for depression and heterogeneous symptom presentations. This study used network analysis to discover risk factors associated with both depression severity and depression symptoms amongst Pacific adolescents in New Zealand. METHODS: Mixed graphical models with regularization were fitted to data from a community sample of New Zealand born, Pacific adolescents, (n = 561; 51% male; Mean age (SD) = 17 (0.35)) and associations between a wide range of potentially explanatory variables and depression severity and depression symptoms investigated. The associations identified were then tested for reliability, using resampling techniques and sensitivity analysis. RESULTS: In the networks, the explanatory variables associated with both depression severity and depression symptoms were those related to quality of the relationships with mother or friends, school connectedness, and self-assessed weight, but the symptoms they were associated with varied substantially. In the depression severity networks, impulsivity appeared to be a bridging node connecting depression severity with delinquency and negative peer influence. LIMITATIONS: The data were analysed cross-sectionally, so causal inferences about the directions of relationships could not be inferred and most of the data were self-reported. CONCLUSIONS: The results illustrate the varied way that adolescent depression can manifest itself in terms of symptoms and suggest specific items on the depression inventory that might be suitable targets for prevention strategies and interventions, based on the risk factor - depression symptom profiles of individuals or groups.

Visual impairment and its correction among Pacific youth in Aotearoa: findings from the Pacific Islands Families Study.

AIM: Childhood visual impairment has a life-long impact that, with early access to eyecare, is largely avoidable. We aimed to understand visual impairment and its correction among Pacific youth in Aotearoa New Zealand. METHOD: The Pacific Islands Families Study is a birth cohort study that tracks an original sample of 1,398 Pacific children born at Middlemore Hospital (Auckland). This analysis focuses on assessed visual acuity (at 9- and 18-years, using 0.3logMAR or 6/12 as the cut-off for visual impairment) and participants' self-reports about accessing eyecare services. RESULTS: Less than a fifth of children (111/729, 15.2%) and teens (86/457, 18.8%) reported having sought eyecare. The percentage of participants with refractive correction was 3.6% (32/887) at 9-years and 14.3% (66/463) at 18-years. At 9-years, 1.9% of children (16/853) had visual impairment in one eye only, and 0.9% (8/853) had visual impairment impacting both eyes. By 18-years these values increased to 7.9% (36/456) and 4.2% (19/456), respectively. Among those with visual impairment, most children (15/24, 62.5%) and teens (32/55, 58.2%) reported they did not have refractive correction. CONCLUSION: Although prevalence of visual impairment is relatively low compared to non-Pacific youth, much of the reported impairment appears to be avoidable with improved eyecare.

Pacific and English Language Fluency and Mental Disorder Symptom Indications Among Pacific Mothers in New Zealand: Findings From the Pacific Islands Families Study.

Within New Zealand (NZ), Pacific people experience higher prevalence of mental disorder than non-Pacific people. Bilinguals are believed to have psychological advantages over monolinguals, although the empirical evidence base is equivocal. A prospective cohort of Pacific mothers was studied at 6 weeks (n = 1272), 1-year (n = 1135), and 2-year (n = 1059) postpartum. At 6 weeks, 343 (27.0%) mothers were fluent in both Pacific and English languages, 519 (40.8%) only fluent in Pacific language(s), and 410 (32.2%) only fluent in English. Over assessment waves, 16.0%, 12.5%, and 8.7% of mothers had mental disorder symptom indications. In adjusted generalized estimating equation analysis, mothers speaking English only had odds of mental disorder symptom indication of 2.24 as compared to bilingual mothers, while those who spoke Pacific language(s) only had odds of 1.52. Supporting Pacific and English languages within NZ may confer mental health benefits to new Pacific mothers and potentially others.

Impact of current and past intimate partner violence on maternal mental health and behaviour at 2 years after childbirth: evidence from the Pacific Islands Families Study.

OBJECTIVE: The present study examined the association between maternal intimate partner violence (IPV) at 6 weeks and 24 months postpartum and maternal health problems in a cohort of Pacific families with 2-year-old children in New Zealand. METHODS: Data were gathered from the Pacific Islands Families Study. Mothers of a cohort of Pacific infants born in Auckland, New Zealand during 2000 were interviewed when the children were 6 weeks and 24 months of age. There were 828 mothers cohabiting in married or de facto partnerships who completed measures of IPV, mental health, and health-related behaviour such as smoking and high-risk alcohol use at both data points. The main statistical method used was logistic regression analysis. RESULTS: Compared to mothers who did not experience physical violence at either data point, the odds of reporting psychological distress were 2.42 (95% confidence interval (CI) = 1.07-5.44) for those experiencing physical violence at 6 weeks only, 3.47 (95%CI = 1.75-6.86) for those experiencing physical violence at 24 months only, and 3.84 (95%CI = 1.78-8.30) for those experiencing physical violence at both data points after controlling for sociodemographic factors. Mothers experiencing verbal aggression or physical violence at both data points were more likely to report smoking or high-risk alcohol use at 24 months than those who did not, but the associations were no longer significant after controlling for sociodemographic factors. CONCLUSION: Being a victim of intimate partner physical violence at any time (past, recent and repeated) may contribute to an increase in maternal psychological distress. Health-related behaviours such as smoking and high-risk alcohol use at 24 months postpartum may to some degree be attributable to repeated victimization of physical violence and verbal aggression, but the relationships are not convincing and deserve further research in longitudinal studies.

Respiratory Health of Pacific Youth: An Observational Study of Associated Risk and Protective Factors Throughout Childhood.

BACKGROUND: Respiratory disease is the third most common cause of death in New Zealand, with Pacific people living in New Zealand bearing the greatest burden of this type of disease. Although some epidemiological outcomes are known, we lack the specifics required to formulate targeted and effective public health interventions. The Pacific Islands Families (PIF) birth cohort study is a study that provides a unique source of data to assess lung function and current respiratory health among participants entering early adulthood and to examine associations with early life events during critical periods of growth. OBJECTIVE: This paper aims to provide an overview of the design, methods, and scope of the Respiratory Health of Pacific Youth Study, which uses the overall PIF study cohort aged 18-19 years. METHODS: From 2000-2019, the PIF study has followed, from birth, the growth, and the development of 1398 Pacific children born in Auckland, New Zealand. Participants were nested within the overall PIF study (at ages 18-19 years) from June 2018, and assessments were undertaken until mid-November 2019. The assessments included respiratory and general medical histories, a general physical examination, assessment of lung function (forced expiratory volume and forced vital capacity), self-completed questionnaires (St George's Respiratory Questionnaire, European Quality of Life 5 Dimensions-3 Level, Epworth Sleepiness Scale for Children and Adolescents, and Leicester Cough Questionnaire), blood tests (eosinophils, Immunoglobulin E, Immunoglobulin G, Immunoglobulin A, Immunoglobulin M, and C-reactive protein), and chest x-rays. Noninferential analyses will be carried out on dimensionally reduced risk and protective factors and confounders. RESULTS: Data collection began in June 2018 and ended in November 2019, with a total of 466 participants recruited for submission of the paper. Collection and collation of chest x-ray data is still underway, and data analysis and expected results will be published by November 2020. CONCLUSIONS: This is the first longitudinal observational study to address the burden of respiratory disease among Pacific youth by determining factors in early life that impose long-term detriments in lung function and are associated with the presence of respiratory illness. Identifying risk factors and the magnitude of their effects will help in adopting preventative measures, establishing whether any avoidable risks can be modified by later resilient behaviors, and provide baseline measurements for the development of respiratory disease in later adult life. The study results can be translated into practice guidelines and inform health strategies with immediate national and international impact. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): DERR1-10.2196/18916.

Do perceptions of neighbourhood problems contribute to maternal health?: findings from the Pacific Islands Families study.

Research suggests that physical and social aspects of the neighbourhood have a bearing on our well-being. As part of the Pacific Islands Families Study, this study examined maternal perceptions and socio-demographic determinants of neighbourhood problems and their association with mental health. The main problems reported centred on noise, pollution and safety matters. Ethnicity, deprivation and alcohol consumption were the best predictors of greater perceived neighbourhood problems. Adjusted analyses showed that those reporting greater neighbourhood problems were almost twice as likely as those reporting fewer problems to have psychological morbidity. Mothers with high deprivation scores were 7.3 times more likely to have psychological morbidity. Findings suggest that neighbourhood quality and socio-economic position are important contributors to mental health. Negative effects on health are likely to derive from exposure to pollutants and from problem features in the neighbourhood acting as sources of psychosocial stress and barriers to health promoting activities. Improvements to services and regulations may contribute to health gains.

The Importance of Pedestrian Network Connectivity for Adolescent Health: A Cross-sectional Examination of Associations between Neighbourhood Built Environments and Metabolic Health in the Pacific Islands Families Birth Cohort Study.

The research aim was to investigate associations between objectively-assessed built environment attributes and metabolic risk in adolescents of Pacific Islands ethnicity, and to consider the possible mediating effect of physical activity and sedentary time. Youth (n = 204) undertook a suite of physical assessments including body composition, blood sampling, and blood pressure measurements, and seven day accelerometry. Objective measures of the neighbourhood built environment were generated around individual addresses. Logistic regression and linear modelling were used to assess associations between environment measures and metabolic health, accounting for physical activity behaviours. Higher pedestrian connectivity was associated with an increase in the chance of having any International Diabetes Federation metabolic risk factors for males only. Pedestrian connectivity was related to fat free mass in males in unadjusted analyses only. This study provides evidence for the importance of pedestrian network connectivity for health in adolescent males. Future research is required to expand the limited evidence in neighbourhood environments and adolescent metabolic health.

Maternal intimate partner violence and behavioural problems among Pacific children living in New Zealand.

AIMS: To examine (1) the association between maternal intimate partner violence (IPV) perpetration and victimisation and behavioural problems among two- and four-year-old Pacific children, and (2) the socio-demographic and parenting factors that may impact on this association. DESIGN: Mothers of the Pacific Islands Families (PIF) cohort of Pacific infants born in New Zealand during 2000 were interviewed when the children were two and four years of age. This data set was based on mothers who were cohabiting in married or de-facto partnerships (N = 920) and who completed measures of IPV at the two-year assessment point and the Child Behaviour Checklist (CBCL) at the two-or four-year assessment points. Of these, 709 mothers completed the CBCL at both assessment points. RESULTS: There were no significant associations between IPV and the prevalence rates of clinically relevant cases of behavioural problems in the two-year-old child cohort. However, the prevalence rates of clinically relevant internalising, externalising and total problem cases were significantly higher among four-year-old children of mothers who reported severe perpetration of IPV. The odds of being in clinical range of internalising were 2.16 times higher for children of mothers who were perpetrators of severe physical violence than for those children of mothers who were not, and for externalising and total problems they were 2.38 and 2.36 times higher respectively. Socio-demographic and parenting factors did not significantly influence the association between IPV and child behaviour problems. CONCLUSION: These findings contribute to the complex picture of the consequences that exposure to parental violence may have on the behaviour of young children. The effectiveness of preventative strategies may be maximised if implemented in these early years before such problems become entrenched and lead on to future behavioural problems and impaired family relationships.

Maternal smoking during pregnancy and behaviour problems in a birth cohort of 2-year-old Pacific children in New Zealand.

AIM: The present study investigated associations between maternal smoking during pregnancy and child behaviour problems in a cohort of Pacific Islands two-year-old children in New Zealand. STUDY DESIGN: Data were gathered as part of the Pacific Islands Families (PIF) Study. Mothers of a cohort of 1398 Pacific infants born in South Auckland, New Zealand were interviewed when their children were six-weeks, 12 and 24 months of age. Within the context of a wider interview, data regarding cigarette smoking during pregnancy was obtained from 1038 biological mothers at the six-week interview and reports of child behaviour using the Child Behaviour Checklist were gathered when the children were 24 months old. RESULTS: The prevalence rates of clinically relevant cases were higher in children of smokers compared to non-smokers for internalising (22.6% versus 15.2%), externalising (9.6% versus 5.7%) and total problem scores (20% versus 12.4%). Following adjustment for potential confounding factors, smoking was associated with a moderately increased prevalence of total behaviour problems (OR=1.75, 95% CI=(1.12, 2.74); p=0.015). For internalising scores, the effects of smoking appeared to be raised for children of non-partnered mothers (OR=3.35, 95% CI=(1.29, 8.67); p=0.013). For externalising scores, smoking appeared to have a greater detrimental effect on girls (OR=2.37, 95% CI=(1.12, 5.04); p=0.024). CONCLUSIONS: Findings indicate there are significant effects of prenatal tobacco exposure on problem behaviour among young children. Smoking is a modifiable factor worthy of increased early preventive efforts.