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Biomedical subjects

H L MacMillan

Publications and source records attributed to H L MacMillan.

At least 19 recordsLinked to original sources
PubMed2001

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.

Adolescent↗
PubMed2001

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.

Adolescent↗
PubMed2000

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.

Adolescent↗
PubMed2000

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.

Child↗
PubMed1999

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.

Adolescent↗
PubMed1997

Prevalence of child physical and sexual abuse in the community. Results from the Ontario Health Supplement.

CONTEXT: Although child maltreatment is considered common, few community surveys have examined the prevalence of more than 1 type of maltreatment among both males and females. OBJECTIVE: To determine the prevalence of a history of physical and sexual abuse during childhood among the general population. DESIGN: General population survey. SETTING: Household dwellings in the province of Ontario, Canada. PARTICIPANTS: A random sample (N=9953) of residents aged 15 years and older participated in the Ontario Health Supplement. MAIN OUTCOME MEASURE: Self-administered questionnaire about a history of physical and sexual abuse in childhood. RESULTS: A history of child physical abuse was reported more often by males (31.2%) than females (21.1%), while sexual abuse during childhood was more commonly reported by females (12.8%) than males (4.3%). Severe physical abuse was reported by similar proportions of males (10.7%) and females (9.2%). A greater percentage of females reported a history of severe sexual abuse (11.1%) compared with males (3.9%). Age of the respondent was not significantly associated with childhood abuse within any category for males. However, for females, the reported prevalence in childhood of sexual abuse, co-occurrence of physical and sexual abuse, and both categories of severe abuse decreased with increasing age of the respondent. CONCLUSIONS: A history of childhood maltreatment among Ontario residents is common. Child abuse may be more prevalent in younger women compared with older women, or there may be a greater willingness among younger women to report abuse.

Adolescent↗
PubMed1996

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.

Canada↗
PubMed1994

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.

Adolescent↗
PubMed1994

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.

Adolescent↗
PubMed1993

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.

Adolescent↗
PubMed1993

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.

Adult↗