Garrett M Fitzmaurice
Biographic Data
| ID | 332860 |
|---|---|
| NAME | Garrett M Fitzmaurice |
| GIVEN NAMES | Garrett M |
| FAMILY NAME | Fitzmaurice |
| SIGNATURE | FITZMAURICE G M |
| AFFILIATIONS | Harvard University |
| ORCID | 0000-0002-2265-8810 |
| VERIFIED | Yes |
| TOTAL WORKS | 21 |
| TOTAL CITATIONS | 42 |
| AUTHOR COUNT | 21 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1990 |
| LATEST PUBLICATION YEAR | 2024 |
| H-INDEX | 3 |
Permutation Tests for Assessing Potential Non-Linear Associations between Treatment Use and Multivariate Clinical Outcomes
In many psychometric applications, the relationship between the mean of an outcome and a quantitative covariate is too complex to be described by simple parametric functions; instead, flexible nonlinear relationships can be incorporated using penalized splines. Penalized splines can be conveniently represented as a linear mixed effects model (LMM), where the coefficients of the spline basis functions are random effects. The LMM representation of …
The Treatment Ambassador Program: A Highly Acceptable and Feasible Community-Based Peer Intervention for South Africans Living with HIV Who Delay or Discontinue Antiretroviral Therapy
Neurological soft signs and cognitive performance in early childhood
Neurological soft signs (NSSs), minor neurological abnormalities, have been implicated as risk factors for poor cognitive performance in small-scale studies. Here we investigate the associations between NSSs and multiple domains of cognitive performance in a large, population-based cohort and evaluate sex differences in these associations. We analyzed data from 35,710 seven-year-old children in the Collaborative Perinatal Project to study the ass…
Relationship between infant malnutrition and childhood maltreatment in a Barbados lifespan cohort
Childhood malnutrition and maltreatment (abuse, neglect) are both prevalent, particularly in resource-limited settings. Despite their known negative impact on child development, there is surprisingly little research documenting their interrelationships. To address this gap, we administered the Childhood Trauma Questionnaire-Short Form (CTQ-SF), a retrospective structured self-report of childhood abuse and neglect, in a Barbadian cohort of 77 adul…
Impact of persistent and adolescent-limited antisocial behaviour on adult health outcomes
BACKGROUND: Persistent engagement in antisocial behaviour across developmental periods is thought to increase the risk for early disease morbidity. However, less is known about potential adverse health outcomes among the much larger subset of individuals with antisocial behaviour limited to adolescence. METHODS: Using data from the Providence, Rhode Island cohort of the Collaborative Perinatal Project, we examined the association between developm…
Binary Response Models and Logistic Regression
Linear Mixed Models
Challenges in assessing depressive symptoms in Fiji: A psychometric evaluation of the CES-D
BACKGROUND AND AIM: The CES-D is a commonly used self-report assessment for depressive symptomatology. However, its psychometric properties have not been evaluated in Fiji. This study aims to evaluate the reliability and validity of English language and Fijian vernacular versions in ethnic Fijian adolescent schoolgirls. METHODS: As part of the HEALTHY Fiji study, ethnic Fijian female adolescents (N = 523) completed the CES-D. Participants selecte…
Applied Longitudinal Analysis
Praise for the First Edition ". . . [this book] should be on the shelf of everyone interested in . . . longitudinal data analysis."-Journal of the American Statistical Association Features newly developed topics and applications of the analysis of longitudinal data Applied Longitudinal Analysis, Second Edition presents modern methods for analyzing data from longitudinal studies and now features the latest state-of-the-art techniques. The book emp…
Maternal smoking during pregnancy and criminal offending among adult offspring
BACKGROUND: Although a number of previous studies have reported an association between maternal smoking during pregnancy (MSP) and externalising behaviour problems among offspring, it has been suggested that this relationship is spurious due to the failure of these studies to properly account for important confounding factors. METHODS: The relationship between MSP and adult criminal offending was examined using data from 3766 members of the Provi…
Sex, stressful life events, and adult onset depression and alcohol dependence: Are men and women equally vulnerable
Witness of Intimate Partner Violence in Childhood and Perpetration of Intimate Partner Violence in Adulthood
BACKGROUND: At least half a million women are victims of intimate partner violence in the United States annually, resulting in substantial harm. However, the etiology of violence to intimate partners is not well understood. Witnessing such violence in childhood has been proposed as a principal cause of adulthood perpetration, yet it remains unknown whether the association between witnessing intimate partner violence and adulthood perpetration is …
The Relationship of Manic Episodes and Drug Abuse to Sexual Risk Behavior in Patients with Co-Occurring Bipolar and Substance Use Disorders: A 15-Month Prospective Analysis
Behavioral Problems and the Effects of Early Intervention on Eight-Year-Old Children with Learning Disabilities
Incidence and Remission Rates of Overweight Among Children Aged 5 to 13 Years in a District-Wide School Surveillance System
Objectives. To monitor annual changes in weight status, we determined incidence and remission rates of overweight among school-aged children with longitudinal school-based surveillance. Methods. We estimated 1-year changes in weight status among students enrolled in public schools in Cambridge, Mass. Physical education teachers measured height and weight annually. Adjusted odds ratios (ORs) were estimated via multivariate logistic regression, acc…
Cognitive performance in childhood and early adult illness: A prospective cohort study
Study objective: To evaluate whether cognitive performance in childhood is an early determinant of adult illness. Design: Prospective cohort study covering over 30 years. Setting: Providence, Rhode Island, USA. Participants: 633 people ages 30–39 followed up since birth as part of the Providence cohort of the national collaborative perinatal project. Main results: Higher cognitive performance at age 7 was related to a significantly reduced risk o…
Socio-economic status, family disruption and residential stability in childhood: Relation to onset, recurrence and remission of major depression
Background. Childhood adversity significantly increases the risk of depression, but it is unclear whether this risk is most pronounced for depression occurring early in life. In the present study, we examine whether three aspects of childhood adversity – low socio-economic status (SES), family disruption, and residential instability – are related to increased risk of depression during specific stages of the life course. We also examine whether th…
Anger Expression and Risk of Stroke and Coronary Heart Disease Among Male Health Professionals
OBJECTIVE: Anger expression is a dimension of anger that may be strongly related to coronary heart disease and stroke. To date few cohort studies have evaluated the role of anger coping style in the development of cardiovascular disease. This study prospectively examined the effects of anger expression on incidence of cardiovascular disease. METHODS: Participants were male health professionals (N = 23,522), aged 50 to 85 years old and without pre…
Social Ties and Change in Social Ties in Relation to Subsequent Total and Cause-specific Mortality and Coronary Heart Disease Incidence in Men
The authors prospectively examined the effects of social ties and change in social ties, as measured by a well-known social network index, on total and cause-specific mortality and on coronary heart disease incidence in 28,369 US male health professionals aged 42-77 years in 1988. Over 10 years, the relative risk of total mortality for men in the lower two levels of social integration compared with more socially integrated men was 1.19 (95% confi…
Adjusting for Overdispersion in an Analysis of Comparative Social Mobility
The authors discuss the problem of overdispersion in large-scale data sets and its potential impact on standard model selection strategies. Overdispersion is considered to be present when the data display more variability than is predicted by the assumed sampling model. In a recent cross-national analysis of social mobility, data were combined from nine national studies that employed somewhat different sampling schemes and related data collection…
Transition to motherhood and the self: Measurement, stability, and change
Different ways of conceptualizing and measuring change in attitudes during transition to motherhood are examined. A series of analyses was performed on data from a cross-sectional sample (N = 667) and a smaller longitudinal sample (n = 48) to demonstrate sound psychometric properties for 2 new scales and to show construct comparability across different phases of childbearing. For Childbearing Attitudes Questionnaire, results demonstrated equality…
Sex, stressful life events, and adult onset depression and alcohol dependence: Are men and women equally vulnerable
Cognitive performance in childhood and early adult illness: A prospective cohort study
Study objective: To evaluate whether cognitive performance in childhood is an early determinant of adult illness. Design: Prospective cohort study covering over 30 years. Setting: Providence, Rhode Island, USA. Participants: 633 people ages 30–39 followed up since birth as part of the Providence cohort of the national collaborative perinatal project. Main results: Higher cognitive performance at age 7 was related to a significantly reduced risk o…
Transition to motherhood and the self: Measurement, stability, and change
Different ways of conceptualizing and measuring change in attitudes during transition to motherhood are examined. A series of analyses was performed on data from a cross-sectional sample (N = 667) and a smaller longitudinal sample (n = 48) to demonstrate sound psychometric properties for 2 new scales and to show construct comparability across different phases of childbearing. For Childbearing Attitudes Questionnaire, results demonstrated equality…
Maternal smoking during pregnancy and criminal offending among adult offspring
BACKGROUND: Although a number of previous studies have reported an association between maternal smoking during pregnancy (MSP) and externalising behaviour problems among offspring, it has been suggested that this relationship is spurious due to the failure of these studies to properly account for important confounding factors. METHODS: The relationship between MSP and adult criminal offending was examined using data from 3766 members of the Provi…
Incidence and Remission Rates of Overweight Among Children Aged 5 to 13 Years in a District-Wide School Surveillance System
Objectives. To monitor annual changes in weight status, we determined incidence and remission rates of overweight among school-aged children with longitudinal school-based surveillance. Methods. We estimated 1-year changes in weight status among students enrolled in public schools in Cambridge, Mass. Physical education teachers measured height and weight annually. Adjusted odds ratios (ORs) were estimated via multivariate logistic regression, acc…
Adjusting for Overdispersion in an Analysis of Comparative Social Mobility
The authors discuss the problem of overdispersion in large-scale data sets and its potential impact on standard model selection strategies. Overdispersion is considered to be present when the data display more variability than is predicted by the assumed sampling model. In a recent cross-national analysis of social mobility, data were combined from nine national studies that employed somewhat different sampling schemes and related data collection…
Transition to motherhood and the self: Measurement, stability, and change
Different ways of conceptualizing and measuring change in attitudes during transition to motherhood are examined. A series of analyses was performed on data from a cross-sectional sample (N = 667) and a smaller longitudinal sample (n = 48) to demonstrate sound psychometric properties for 2 new scales and to show construct comparability across different phases of childbearing. For Childbearing Attitudes Questionnaire, results demonstrated equality…
Adjusting for Overdispersion in an Analysis of Comparative Social Mobility
The authors discuss the problem of overdispersion in large-scale data sets and its potential impact on standard model selection strategies. Overdispersion is considered to be present when the data display more variability than is predicted by the assumed sampling model. In a recent cross-national analysis of social mobility, data were combined from nine national studies that employed somewhat different sampling schemes and related data collection…
Social Ties and Change in Social Ties in Relation to Subsequent Total and Cause-specific Mortality and Coronary Heart Disease Incidence in Men
The authors prospectively examined the effects of social ties and change in social ties, as measured by a well-known social network index, on total and cause-specific mortality and on coronary heart disease incidence in 28,369 US male health professionals aged 42-77 years in 1988. Over 10 years, the relative risk of total mortality for men in the lower two levels of social integration compared with more socially integrated men was 1.19 (95% confi…
Socio-economic status, family disruption and residential stability in childhood: Relation to onset, recurrence and remission of major depression
Background. Childhood adversity significantly increases the risk of depression, but it is unclear whether this risk is most pronounced for depression occurring early in life. In the present study, we examine whether three aspects of childhood adversity – low socio-economic status (SES), family disruption, and residential instability – are related to increased risk of depression during specific stages of the life course. We also examine whether th…
Anger Expression and Risk of Stroke and Coronary Heart Disease Among Male Health Professionals
OBJECTIVE: Anger expression is a dimension of anger that may be strongly related to coronary heart disease and stroke. To date few cohort studies have evaluated the role of anger coping style in the development of cardiovascular disease. This study prospectively examined the effects of anger expression on incidence of cardiovascular disease. METHODS: Participants were male health professionals (N = 23,522), aged 50 to 85 years old and without pre…
Cognitive performance in childhood and early adult illness: A prospective cohort study
Study objective: To evaluate whether cognitive performance in childhood is an early determinant of adult illness. Design: Prospective cohort study covering over 30 years. Setting: Providence, Rhode Island, USA. Participants: 633 people ages 30–39 followed up since birth as part of the Providence cohort of the national collaborative perinatal project. Main results: Higher cognitive performance at age 7 was related to a significantly reduced risk o…
Incidence and Remission Rates of Overweight Among Children Aged 5 to 13 Years in a District-Wide School Surveillance System
Objectives. To monitor annual changes in weight status, we determined incidence and remission rates of overweight among school-aged children with longitudinal school-based surveillance. Methods. We estimated 1-year changes in weight status among students enrolled in public schools in Cambridge, Mass. Physical education teachers measured height and weight annually. Adjusted odds ratios (ORs) were estimated via multivariate logistic regression, acc…
Behavioral Problems and the Effects of Early Intervention on Eight-Year-Old Children with Learning Disabilities
Witness of Intimate Partner Violence in Childhood and Perpetration of Intimate Partner Violence in Adulthood
BACKGROUND: At least half a million women are victims of intimate partner violence in the United States annually, resulting in substantial harm. However, the etiology of violence to intimate partners is not well understood. Witnessing such violence in childhood has been proposed as a principal cause of adulthood perpetration, yet it remains unknown whether the association between witnessing intimate partner violence and adulthood perpetration is …
The Relationship of Manic Episodes and Drug Abuse to Sexual Risk Behavior in Patients with Co-Occurring Bipolar and Substance Use Disorders: A 15-Month Prospective Analysis
Applied Longitudinal Analysis
Praise for the First Edition ". . . [this book] should be on the shelf of everyone interested in . . . longitudinal data analysis."-Journal of the American Statistical Association Features newly developed topics and applications of the analysis of longitudinal data Applied Longitudinal Analysis, Second Edition presents modern methods for analyzing data from longitudinal studies and now features the latest state-of-the-art techniques. The book emp…
Maternal smoking during pregnancy and criminal offending among adult offspring
BACKGROUND: Although a number of previous studies have reported an association between maternal smoking during pregnancy (MSP) and externalising behaviour problems among offspring, it has been suggested that this relationship is spurious due to the failure of these studies to properly account for important confounding factors. METHODS: The relationship between MSP and adult criminal offending was examined using data from 3766 members of the Provi…
Sex, stressful life events, and adult onset depression and alcohol dependence: Are men and women equally vulnerable
Challenges in assessing depressive symptoms in Fiji: A psychometric evaluation of the CES-D
BACKGROUND AND AIM: The CES-D is a commonly used self-report assessment for depressive symptomatology. However, its psychometric properties have not been evaluated in Fiji. This study aims to evaluate the reliability and validity of English language and Fijian vernacular versions in ethnic Fijian adolescent schoolgirls. METHODS: As part of the HEALTHY Fiji study, ethnic Fijian female adolescents (N = 523) completed the CES-D. Participants selecte…
Binary Response Models and Logistic Regression
Linear Mixed Models
Impact of persistent and adolescent-limited antisocial behaviour on adult health outcomes
BACKGROUND: Persistent engagement in antisocial behaviour across developmental periods is thought to increase the risk for early disease morbidity. However, less is known about potential adverse health outcomes among the much larger subset of individuals with antisocial behaviour limited to adolescence. METHODS: Using data from the Providence, Rhode Island cohort of the Collaborative Perinatal Project, we examined the association between developm…
Relationship between infant malnutrition and childhood maltreatment in a Barbados lifespan cohort
Childhood malnutrition and maltreatment (abuse, neglect) are both prevalent, particularly in resource-limited settings. Despite their known negative impact on child development, there is surprisingly little research documenting their interrelationships. To address this gap, we administered the Childhood Trauma Questionnaire-Short Form (CTQ-SF), a retrospective structured self-report of childhood abuse and neglect, in a Barbadian cohort of 77 adul…
Neurological soft signs and cognitive performance in early childhood
Neurological soft signs (NSSs), minor neurological abnormalities, have been implicated as risk factors for poor cognitive performance in small-scale studies. Here we investigate the associations between NSSs and multiple domains of cognitive performance in a large, population-based cohort and evaluate sex differences in these associations. We analyzed data from 35,710 seven-year-old children in the Collaborative Perinatal Project to study the ass…
The Treatment Ambassador Program: A Highly Acceptable and Feasible Community-Based Peer Intervention for South Africans Living with HIV Who Delay or Discontinue Antiretroviral Therapy
Permutation Tests for Assessing Potential Non-Linear Associations between Treatment Use and Multivariate Clinical Outcomes
In many psychometric applications, the relationship between the mean of an outcome and a quantitative covariate is too complex to be described by simple parametric functions; instead, flexible nonlinear relationships can be incorporated using penalized splines. Penalized splines can be conveniently represented as a linear mixed effects model (LMM), where the coefficients of the spline basis functions are random effects. The LMM representation of …
Medicine (15 works) · Psychology (12 works) · Psychiatry (10 works) · Clinical Psychology (7 works) · Demography (7 works) · Developmental psychology (7 works) · Child and Adolescent Psychosocial and Emotional Development (6 works) · Cohort (6 works) · Internal Medicine (6 works) · Child Abuse and Trauma (5 works)