Mental-Physical Multimorbidity in Youth: Associations with Individual, Family, and Health Service Use Outcomes.

Prevalence, correlates, and outcomes of youth with comorbid mental and physical conditions (i.e., multimorbidity) were examined in this cross-sectional study. Participants were 92 youth (14.5 years [SD 2.7]; 69.6% female) and their parents. Mental disorder was assessed using structured interviews and physical health using a standardized questionnaire. Twenty-five percent of youth had multimorbidity and no child or parent demographic or health characteristics were correlated with multimorbidity. Youth with multimorbidity reported similar quality of life and better family functioning [B = - 4.80 (- 8.77, - 0.83)] compared to youth with mental disorder only (i.e., non-multimorbid). Youth with multimorbidity had lower odds of receiving inpatient services [OR = 0.20 (0.05, 0.85)] and shorter stays in hospital for their mental health [OR = 0.74 (0.57, 0.91)] over the past year. Family functioning was found to mediate the association between youth multimorbidity and length of stay [αß = 0.14 (0.01, 0.27)]. Findings reinforce the need for family-centered youth mental health care.

Preventing child maltreatment: an evidence-based update.

Child maltreatment is a significant public health problem associated with a broad range of negative outcomes in children and adolescents that can extend into adulthood. This review summarizes information about programs aimed at the prevention of child maltreatment evaluated by controlled trials, with a focus on home visitation programs. It does not include programs aimed at prevention of child sexual abuse, the subject of a separate review in this series. We discuss those programs that include one or more measures of child maltreatment and related outcomes (reports of abuse and neglect, injuries, hospitalizations and emergency room visits). Most programs targeting at-risk families have not shown evidence of effectiveness in preventing abuse or neglect. An important exception is the Nurse Family Partnership (NFP), a program provided by nurses to first-time socially disadvantaged mothers beginning prenatally that has undergone rigorous evaluation in three randomized controlled trials. It has shown consistent effects in reducing reports of maltreatment and associated outcomes as well as additional benefits in maternal and child health in high-risk families. A second exception is the promising Early Start program provided by nurses and social workers to at-risk families beginning postnatally. One randomized controlled trial of the program has shown reduced rates of parental reports of severe abuse and hospital attendance for injuries and poisonings, based on records. The characteristics of the NFP and Early Start programs are discussed with special emphasis on ways in which they differ from other home visitation programs.

Adapting, piloting and evaluating complex public health interventions: lessons learned from the Nurse-Family Partnership in Canadian public health settings.

INTRODUCTION: The Nurse-Family Partnership (NFP) is a home-visit program for young and first-time, socially and economically disadvantaged mothers. Evidence from three United States randomized controlled trials (RCTs) on the effectiveness of this intervention at improving pregnancy outcomes, improving child health and development, and increasing maternal economic self-sufficiency is robust. However, the effectiveness of the NFP in Canada, with its different health and social care context, needs to be determined. The purpose of this article is to describe the complex process for moving the NFP from the research arena to full implementation in Canada. METHODS: This process of evaluation in Canada includes (1) adapting the intervention; (2) piloting the intervention in small-scale feasibility and acceptability studies; and (3) conducting an RCT and process evaluation through a study called the British Columbia Healthy Connections Project (BCHCP). This large-scale evaluation also creates an opportunity to expand the NFP evidence base by conducting an additional study to examine potential biological mechanisms linking intervention and behavioural outcomes in children. RESULTS: Adaptation of the NFP home-visit materials is a continuous process. A pilot project determined that it was feasible to enrol eligible women into the NFP. This pilot also determined that, in Canada, it was most appropriate for public health agencies to implement the NFP and for public health nurses to deliver the intervention. Finally, the pilot showed that this intensive home-visit program was acceptable to clients, their family members and health care providers. Through the BCHCP, the next steps - the RCT and process evaluation - are currently underway. The BCHCP will also set the foundation for long-term evaluation of key public health outcomes in a highly vulnerable population of families.

TITRE: Adaptation, mise à l'épreuve et évaluation d'interventions complexes en santé publique : leçons tirées du Nurse-Family Partnership dans le secteur de la santé publique au Canada. INTRODUCTION: Le Nurse-Family Partnership (NFP) est un programme de visites à domicile destiné aux nouvelles jeunes mères défavorisées sur le plan socioéconomique. Les données issues de trois essais contrôlés randomisés (ECR) américains ont solidement démontré l'efficacité des interventions quant à l'amélioration de l'issue de la grossesse, de la santé et du développement des enfants ainsi que de l'autonomie économique des mères. Cependant, l'efficacité du NFP dans le contexte canadien des services de santé et des services sociaux, qui diffère de celui des États-Unis, reste à déterminer. Cet article vise à décrire le processus complexe suivi pour adapter la recherche sur le NFP et mettre ainsi en oeuvre ce programme au Canada. MÉTHODOLOGIE: L'évaluation menée au Canada se divise en trois étapes : 1) adaptation de l'intervention, 2) mise à l'épreuve de l'intervention dans des études de faisabilité et d'acceptabilité à petite échelle et 3) réalisation d'un ECR et d'une évaluation du processus dans le cadre de l'étude intitulée British Columbia Healthy Connections Project (BCHCP). Cette évaluation à grande échelle permettra d'enrichir la base de données probantes du NFP par la tenue d'une étude supplémentaire sur les mécanismes biologiques susceptibles de témoigner de la relation entre l'intervention et les effets sur le comportement des enfants. RÉSULTATS: L'adaptation de la documentation du NFP pour les visites à domicile est un processus continu. Un projet pilote a montré la faisabilité du recrutement des femmes admissibles au NFP. Il a aussi révélé qu'il était préférable au Canada que le NFP soit mis en oeuvre par les organismes de santé publique et que les infirmières et infirmiers en santé publique (ISP) s'occupent des interventions. Enfin, il a montré que ce programme intensif de visites à domicile a bénéficié d'une réception positive de la part des clientes, des membres de leur famille et des fournisseurs de soins de santé. Les prochaines étapes ­ à savoir l'ECR et l'évaluation du processus ­ ont été entamées dans le cadre du BCHCP. Ce projet jettera les bases d'une évaluation à long terme des principaux résultats en matière de santé publique concernant des familles hautement vulnérables.

Health care and social service professionals' perceptions of a home-visit program for young, first-time mothers.

INTRODUCTION: Little is known about health care and social service professionals' perspective on the acceptability of long-term home-visit programs serving low-income, first-time mothers. This study describes the experiences and perspectives of these community care providers involved with program referrals or service delivery to mothers who participated in the Nurse-Family Partnership (NFP), a targeted nurse home-visit program. METHODS: The study included two phases. Phase I was a secondary qualitative data analysis used to analyze a purposeful sample of 24 individual interviews of community care providers. This was part of a larger case study examining adaptations required to increase acceptability of the NFP in Hamilton, Ontario, Canada. In Phase II (n = 4), themes identified from Phase I were further explored through individual, semi-structured interviews with community health care and social service providers, giving qualitative description. RESULTS: Overall, the NFP was viewed as addressing an important service gap for first-time mothers. Providers suggested that frequent communication between the NFP and community agencies serving these mothers could help improve the referral process, avoid service duplication, and streamline the flow of service access. The findings can help determine key components required to enhance the success of integrating a home-visit program into an existing network of community services. CONCLUSION: The function of home-visit programs should not be viewed in isolation. Rather, their potential can be maximized when they collaborate and share information with other agencies to provide better services for first-time mothers.

TITRE: Points de vue de professionnels de la santé et des services sociaux sur un programme de visites à domicile destiné aux jeunes mères d'un premier enfant. INTRODUCTION: On sait peu de choses sur ce que pensent les professionnels de la santé et des services sociaux des programmes à long terme de visites à domicile pour les nouvelles mères à faible revenu. Cette étude fait état des expériences et des points de vue de fournisseurs de services communautaires qui orientent les mères participant au Nurse-Family Partnership (NFP) ­ un programme de visites à domicile par une infirmière auprès de cette population cible ­ vers le programme lui-même ou qui interviennent directement dans le cadre de celui-ci. MÉTHODOLOGIE: L'étude s'est déroulée en deux phases. La phase I a consisté en une analyse secondaire de données qualitatives issues d'un échantillon de 24 entrevues individuelles dirigées avec des fournisseurs de soins communautaires, cette démarche s'inscrivant dans le cadre d'une étude de cas plus vaste réalisée à Hamilton (Ontario, Canada) et destinée à examiner les moyens à mettre en oeuvre pour accroître la recevabilité du NFP. La phase II, à laquelle ont pris part 4 participants, a consisté en une description qualitative des 3 thèmes relevés lors de la phase I, thèmes qui ont été approfondis au moyen d'entrevues individuelles semi-structurées menées auprès de certains fournisseurs de soins de santé et de services sociaux communautaires. RÉSULTATS: Le NFP est perçu dans l'ensemble comme un programme comblant une lacune importante dans les services dispensés aux nouvelles mères. Des échanges fréquents entre le NFP et les organismes communautaires offrant déjà des services à ces mères pourraient contribuer à en améliorer le processus d'orientation, à éviter leur chevauchement et à en faciliter l'accès. Ces résultats contribuent à mieux définir les composantes nécessaires au succès de l'intégration d'un programme de visites à domicile au réseau déjà en place de services communautaires. CONCLUSION: Le rôle des programmes de visites à domicile ne doit pas être envisagé isolément. Au contraire, le potentiel de ceux-ci est optimisé par la collaboration et l'échange d'information avec d'autres organismes afin d'offrir de meilleurs services aux mères d'un premier enfant.

Evaluation of sex differences in health-related quality of life outcomes associated with child abuse: Results from the Ontario Child Health Study.

AIMS: Despite the advances in child maltreatment research, there is still the need for comprehensive information about how abuse affects a broad range of categories of young adult functioning, and the extent to which these vary by sex. We examined the associations between child physical abuse (PA) and sexual abuse (SA) and six areas of functioning (mental health, physical health, life satisfaction, illegal substance use, alcohol problems and daily smoking). METHODS: Data were obtained from the 1983 Ontario Child Health Study and follow-up in 2000/2001 (n = 1893). Multilevel regression estimated the adjusted associations for PA (with severity) and SA with each of the outcomes. Estimates with an entire sample were presented with sex-by-abuse interactions to examine sex differences and then presented separately by sex. RESULTS: In the adjusted model, severe PA and SA were associated with impairment in mental health, and both forms of PA (severe and non-severe) and SA were associated with low life satisfaction. In addition, severe PA was associated with illegal substance use. Child abuse variables were not associated with poor physical health, alcohol problems or smoking. Although sex-stratified analyses revealed different patterns, there was no significant sex difference in the integrated sample. CONCLUSIONS: This is among the first community-based studies to show a strong association between child PA and SA and low life satisfaction in young adults. The abuse effects were similar for both sexes.

Childhood abuse and psychiatric disorders among single and married mothers.

OBJECTIVE: This study examined the prevalence of, and association between, childhood abuse and psychiatric disorders in single and married mothers. METHOD: Single and married mothers who participated in the Ontario Health Survey, a province-wide study derived from a probability sample of the general population of Ontario aged 15 years and older (N=1,471), were included. Sociodemographic and mental health characteristics were collected by means of interviewer-administered questionnaires. A self-administered questionnaire was used to collect information on childhood physical and sexual abuse. RESULTS: Compared with married mothers, single mothers reported substantially lower incomes as well as higher rates of childhood abuse and all psychiatric morbidities examined (current and lifetime affective or anxiety disorders and substance use disorders). Childhood abuse had a consistent and significant association with adult mental health, even when other risk variables were controlled. No interaction among childhood abuse and marital status and outcome was found. CONCLUSIONS: Single mothers reported more childhood abuse and experienced higher levels of poverty and psychiatric disorders than married mothers. Childhood abuse was associated with more psychiatric problems in both single and married mothers. Research, clinical, and policy implications of these findings are discussed.

Childhood abuse and lifetime psychopathology in a community sample.

OBJECTIVE: The authors assessed lifetime psychopathology in a general population sample and compared the rates of five psychiatric disorder categories between those who reported a childhood history of either physical or sexual abuse and those who did not. METHOD: A modified version of the Composite International Diagnostic Interview and a self-completed questionnaire on child abuse were administered to a probability sample (N=7,016) of Ontario residents 15 to 64 years of age. RESULTS: Those reporting a history of childhood physical abuse had significantly higher lifetime rates of anxiety disorders, alcohol abuse/dependence, and antisocial behavior and were more likely to have one or more disorders than were those without such a history. Women, but not men, with a history of physical abuse had significantly higher lifetime rates of major depression and illicit drug abuse/dependence than did women with no such history. A history of childhood sexual abuse was also associated with higher rates of all disorders considered in women. In men, the prevalence of disorders tended to be higher among those who reported exposure to sexual abuse, but only the associations with alcohol abuse/dependence and the category of one or more disorders reached statistical significance. The relationship between a childhood history of physical abuse and lifetime psychopathology varied significantly by gender for all categories except for anxiety disorders. Although not statistically significant, a similar relationship was seen between childhood history of sexual abuse and lifetime psychopathology. CONCLUSIONS: A history of abuse in childhood increases the likelihood of lifetime psychopathology; this association appears stronger for women than men.

Outcome, prognosis, and risk in a longitudinal follow-up study.

This study reports the results of a 4-year follow-up of a community sample of children who were ages 4 to 12 in 1983 at the first wave of data collection. Results on outcomes revealed that conduct disorder showed the greatest stability especially from late childhood to early adolescence. In multivariate analyses, both family dysfunction and problems getting along with others significantly predicted the persistence of one or more psychiatric disorders 4 years later, and low income predicted one or more psychiatric disorders among children free of disorder 4 years earlier. The implications of the results for the child psychiatric field, especially prevention, are discussed.

Preventive intervention with the children of depressed parents. A case study.

Children of parents with depression are at significant risk for impairment, but little is known about preventive intervention strategies prior to the onset of illness in the children. This paper discusses a preventive approach to assisting families in helping children cope with parental affective disorder. A case study is presented which demonstrates the compatibility of this family-based intervention with psychoanalytically oriented treatment for the parent. Key aspects of this work include the enhancement of self-understanding and resiliency in children.

Child maltreatment: what we know in the year 2000.

This paper provides an overview of child maltreatment within a public health framework, based on the Closing Plenary Address presented at the 1999 Joint Meeting of the American Academy of Child and Adolescent Psychiatry and the Canadian Academy of Child Psychiatry. A brief historical perspective is followed by a discussion of the burden of suffering associated with child maltreatment. Evidence about the prevention and treatment of child abuse and neglect is reviewed. Evidence supports a program of nurse home visits as effective in preventing abuse and neglect among first-time, at-risk mothers. Sexual abuse education programs improve children's knowledge and prevention skills; whether such programs reduce the occurrence of child sexual abuse remains to be established. In the area of treatment, therapeutic day-care programs improve cognitive skills among physically abused and neglected children. Abuse-specific cognitive-behaviour therapy has been shown to be effective in reducing symptoms among sexually abused children in both preschool and older age groups. Further research is necessary across all subcategories of child maltreatment, particularly neglect and emotional abuse.

Preventive health care, 2000 update: prevention of child maltreatment.

OBJECTIVES: To update the 1993 report from the Canadian Task Force on the Periodic Health Examination (now the Canadian Task Force on Preventive Health Care) by reviewing the evidence for the effectiveness of interventions aimed at preventing child maltreatment described in the scientific literature over the past 6 years. OPTIONS: Screening: a variety of techniques including assessment of risk indicators. PREVENTION: programs including home visitation; comprehensive health care programs; parent education and support, combined services and programs aimed specifically at preventing sexual abuse. OUTCOMES: Occurrence of one or more of the subcategories of physical abuse, sexual abuse, neglect and emotional abuse in childhood. EVIDENCE: MEDLINE, PSYCINFO, ERIC and several other databases were searched, experts were consulted, and published recommendations were reviewed. Original research articles and overviews that examined screening for or prevention of child maltreatment were included in the update. No meta-analysis was performed because the range of manoeuvres precluded comparability. BENEFITS, HARMS AND COSTS: Because of the high false-positive rates of screening tests for child maltreatment and the potential for mislabelling people as potential child abusers, the possible harms associated with these screening manoeuvres outweigh the benefits. Two randomized controlled trials showed a reduction in the incidence of childhood maltreatment or outcomes related to physical abuse and neglect among first-time disadvantaged mothers and their infants who received a program of home visitation by nurses in the perinatal period extending through infancy. It is expected that a reduction in incidence of child maltreatment and other outcomes will lead to substantial government savings. Evidence remains inconclusive on the effectiveness of a comprehensive health care program, a parent education and support program, or a combination of services in preventing child maltreatment. Education programs designed to teach children prevention strategies to avoid sexual abuse show increased knowledge and skills but not necessarily reduced abuse. VALUES: The systematic review and critical appraisal of the evidence were conducted according to the evidence-based methodology of the Canadian Task Force on Preventive Health Care. RECOMMENDATIONS: There is further evidence of fair quality to exclude screening procedures aimed at identifying individuals at risk of experiencing or committing child maltreatment (grade D recommendation). There is good evidence to continue recommending a program of home visitation for disadvantaged families during the perinatal period extending through infancy to prevent child abuse and neglect (grade A recommendation). The target group for this program is first-time mothers with one or more of the following characteristics: age less than 19 years, single parent status and low socioeconomic status. The strongest evidence is for an intensive program of home visitation delivered by nurses beginning prenatally and extending until the child's second birthday. There is insufficient evidence to recommend a comprehensive health care program (grade C recommendation), a parent education and support program (grade C recommendation) or a combination of home-based services (grade C recommendation) as a strategy for preventing child maltreatment, but these interventions may be recommended for other reasons. There is insufficient evidence to recommend education programs for the prevention of sexual abuse (grade C recommendation); whether such programs reduce the incidence of sexual abuse has not been established. VALIDATION: The members of the Canadian Task Force on Preventive Health Care reviewed the findings of this analysis through an iterative process. The task force sent the final review and recommendations to selected external expert reviewers, and their feedback was incorporated. SPONSORS: The Canadian Task Force on Preventive Health Care is funded through a partnership between the Provincial and Territorial Ministries of Health and Health Canada.

Public health nurse home visitation for the tertiary prevention of child maltreatment: results of a pilot study.

The purpose of this pilot study was to assess the feasibility of using public health nurse home visitation for the tertiary prevention of child maltreatment. The intervention was designed to provide support to the parents, education about child-rearing and child development and to assist families obtaining help from other services. Eighteen families referred from the Hamilton-Wentworth child protective agencies participated in the intervention. Enrolment criteria included first episode of suspected or verified child physical abuse or neglect, ongoing involvement with a child protective agency, index child less than 12 years of age and remaining in the home, and agreement to participate in the study. Home visits were provided weekly on average over a period of six months and the nurses were available by telephone. Pilot assessment included review of medical records, semi-structured interviews to gather background information, checklists of child-rearing attitudes, child behaviour and development. The participants were interviewed about their response to the intervention. The high degree of mobility of the families posed a problem in recruitment. Nevertheless, the public health nurses were able to develop a working alliance with 14 of the 18 families (77%) who participated. The participants gave permission for review of their medical records and reported that the methods of assessment were acceptable. The authors conclude that the intervention and assessment procedure are feasible and acceptable for preventing the recurrence of child maltreatment. Any decision about effectiveness of the intervention awaits a longitudinal, controlled trial.

The population health perspective as a framework for studying child maltreatment outcomes.

The population health perspective (PHP) is commonly used in addressing a wide range of health issues. This article examines the strengths and limitations of the perspective. The determinants of health that are an integral part of the PHP are used as a framework in considering the range of outcomes associated with exposure to child maltreatment. Directions for further research are outlined.

Aboriginal health.

OBJECTIVE: To inform health care workers about the health status of Canada's native people. DATA SOURCES: A MEDLINE search for articles published from Jan. 1, 1989, to Nov. 31, 1995, with the use of subject headings "Eskimos" and "Indians, North American," excluding specific subject headings related to genetics and history. Case reports were excluded. Material was also identified from a review of standard references and bibliographies and from consultation with experts. STUDY SELECTION: Review and research articles containing original data concerning epidemiologic aspects of native health. Studies of Canadian populations were preferred, but population-based studies of US native peoples were included if limited Canadian information was available. DATA EXTRACTION: Information about target population, methods and conclusions was extracted from each study. RESULTS: Mortality and morbidity rates are higher in the native population than in the general Canadian population. The infant mortality rates averaged for the years 1986 to 1990 were 13.8 per 1000 live births among Indian infants, 16.3 per 1000 among Inuit infants, and only 7.3 per 1000 among all Canadian infants. Age-standardized all-cause mortality rates among residents of reserves averaged for the years 1979 to 1983 were 561.0 per 100,000 population among men and 334.6 per 100,000 among women, compared with 340.2 per 100,000 among all Canadian men and 173.4 per 100,000 among all Canadian women. Compared with the general Canadian population, specific native populations have an increased risk of death from alcoholism, homicide, suicide and pneumonia. Of the aboriginal population of Canada 15 years of age and older, 31% have been informed that they have a chronic health problem. Diabetes mellitus affects 6% of aboriginal adults, compared with 2% of all Canadian adults. Social problems identified by aboriginal people as a concern in their community include substance abuse, suicide, unemployment and family violence. Subgroups of aboriginal people are at a greater-than-normal risk of infectious diseases, injuries, respiratory diseases, nutritional problems (including obesity) and substance abuse. Initial data suggest that, compared with the general population, some subgroups of the native population have a lower incidence of heart disease and certain types of cancer. However, knowledge about contributing factors to the health status of aboriginal people is limited, since the literature generally does not assess confounding factors such as poverty. CONCLUSIONS: Canadian aboriginal people die earlier than their fellow Canadians, on average, and sustain a disproportionate share of the burden of physical disease and mental illness. However, few studies have assessed poverty as a confounding factor. Future research priorities in native health are best determined by native people themselves.

Primary prevention of child sexual abuse: a critical review. Part II.

This paper (Part II) and the previous paper (Part I) provide an overview of the primary prevention of child maltreatment. Part II focuses on the effectiveness of interventions aimed at the primary prevention of child sexual abuse. It includes prospective controlled trials published between January 1979 and May 1993. These studies were systematically identified and the quality of each trial was determined using criteria which assessed methodological rigor. Interventions aimed at the prevention of sexual abuse were classified into eight main categories based on the method of intervention. All programs had education as the primary focus. There is evidence that educational programs can improve safety skills and knowledge of children about sexual abuse but no study has produced data that education actually reduces the occurrence of sexual abuse.

Primary prevention of child physical abuse and neglect: a critical review. Part I.

This paper (Part I) and its companion paper (Part II) provide an overview of the primary prevention of child maltreatment. Part I reviews the effectiveness of interventions aimed at the primary prevention of child physical abuse and neglect. Prospective controlled trials published between January 1979 and May 1993 were systematically identified. The quality of each study was determined using criteria which assessed methodological rigor. Interventions aimed at the prevention of physical abuse and neglect were classified into six main categories within the broad group of perinatal and early childhood programs. While many of these programs did not show a reduction in physical abuse or neglect, there is evidence that extended home visitation can prevent physical abuse and neglect among disadvantaged families.

Should children be screened to undergo early treatment for otitis media with effusion? A systematic review of randomized trials.

BACKGROUND: Otitis media with effusion (OME) is the most common cause of acquired hearing loss in childhood and has been associated with delayed language development and behavioural problems. Some have argued that children should be screened and treated early if found to have clinically important OME. The aim of this review was to assess evidence from randomized controlled trials about the effectiveness of screening and treating children with clinically important OME in the first 4 years of their life. The primary outcome was language development. METHODS: We searched the Cochrane Controlled Trials Register, MEDLINE and EMBASE and reference lists of all included studies in February 2003. We also contacted the first authors of the studies included in this review. Search terms included otitis media; otitis media with effusion; glue ear; OME; screen; children; treatment; language; and behaviour. Data extraction and methodological quality assessment were performed by at least two of us for each study independently, using methods described in the Cochrane Collaboration Handbook. RESULTS: From the three included randomized controlled trials evaluating interventions among children with OME identified through screening, we found no evidence of clinically important benefit in language development. CONCLUSIONS: The identified randomized trials do not show an important benefit on language development from screening the general population of asymptomatic children in the first 4 years of life to undergo early treatment for OME. Screening asymptomatic children in the first 4 years of life for OME is not recommended.

Slapping and spanking in childhood and its association with lifetime prevalence of psychiatric disorders in a general population sample.

BACKGROUND: Little information is available in Canada about the prevalence of and outcomes associated with a history of slapping and spanking in childhood. The objectives of this study were to estimate the prevalence of a history of slapping or spanking in a general population sample and to assess the relation between such a history and the lifetime prevalence of psychiatric disorders. METHODS: In this general population survey, a probability sample of 9953 residents of Ontario aged 15 years and older who participated in the Ontario Health Supplement was used to examine the prevalence of a history of slapping and spanking. A subgroup of this sample (n = 4888), which comprised people aged 15 to 64 years who did not report a history of physical or sexual abuse during childhood, was used to assess the relation between a history of slapping or spanking and the lifetime prevalence of 4 categories of psychiatric disorder. The measures included a self-administered questionnaire with a question about frequency of slapping and spanking during childhood, as well as an interviewer-administered questionnaire to measure psychiatric disorder. RESULTS: The majority of respondents indicated that they had been slapped or spanked, or both, by an adult during childhood "sometimes" (33.4%) or "rarely" (40.9%); 5.5% reported that this occurred "often." The remainder (20.2%) reported "never" experiencing these behaviours. Among the respondents without a history of physical or sexual abuse during childhood, those who reported being slapped or spanked "often" or "sometimes" had significantly higher lifetime rates of anxiety disorders (adjusted odds ratio [OR] 1.43, 95% confidence interval [CI] 1.04-1.96), alcohol abuse or dependence (adjusted OR 2.02, 95% CI 1.27-3.21) and one or more externalizing problems (adjusted OR 2.08, 95% CI 1.36-3.16), compared with those who reported "never" being slapped or spanked. There was also an association between a history of slapping or spanking and major depression, but it was not statistically significant (adjusted OR 1.64, 95% CI 0.96-2.80). INTERPRETATION: There appears to be a linear association between the frequency of slapping and spanking during childhood and a lifetime prevalence of anxiety disorder, alcohol abuse or dependence and externalizing problems.