Attenuation of cortisol across development for victims of sexual abuse / Penelope K. TRICKETT in Development and Psychopathology, 22-1 (January 2010)  

Public ISBD [article]  inDevelopment and Psychopathology > 22-1 (January 2010) . - p.165-175 Titre : Attenuation of cortisol across development for victims of sexual abuse Type de document : Texte imprimé et/ou numérique Auteurs : Penelope K. TRICKETT, Auteur ; Frank W. PUTNAM, Auteur ; Jennie G. NOLL, Auteur ; Elizabeth J. SUSMAN, Auteur ; Chad E. SHENK, Auteur Année de publication : 2010 Article en page(s) : p.165-175 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Inconsistencies exist in literature examining hypothalamic–pituitary–adrenal (HPA) axis activity in children and adults who have experienced childhood abuse. Hence, the extent and manner to which childhood abuse may disrupt HPA axis development is largely unknown. To address these inconsistencies, the developmental course of nonstress cortisol in a long-term longitudinal study was assessed at six time points from childhood through adolescence and into young adulthood to determine whether childhood abuse results in disrupted cortisol activity. Nonstress, morning cortisol was measured in 84 females with confirmed familial sexual abuse and 89 nonabused, comparison females. Although dynamically controlling for co-occurring depression and anxiety, hierarchical linear modeling (HLM) showed that relative to comparison females, the linear trend for abused females was significantly less steep when cortisol was examined across development from age 6 to age 30, t (1, 180) = −2.55, p < .01, indicating attenuation in cortisol activity starting in adolescence with significantly lower levels of cortisol by early adulthood, F (1, 162) = 4.78, p < .01. As a more direct test of the attenuation hypothesis, supplemental HLM analyses of data arrayed by time since the disclosure of abuse indicated that cortisol activity was initially significantly higher, t (1, 425) = 2.18, p < .05, and slopes were significantly less steep t (1, 205) = −2.66, p < .01, for abused females. These findings demonstrate how the experience of childhood abuse might disrupt the neurobiology of stress, providing some support for the attenuation hypothesis that victims of abuse may experience cortisol hyposecretion subsequent to a period of heightened secretion. En ligne : http://dx.doi.org/10.1017/s0954579409990332 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=970 [article] Attenuation of cortisol across development for victims of sexual abuse [Texte imprimé et/ou numérique] / Penelope K. TRICKETT, Auteur ; Frank W. PUTNAM, Auteur ; Jennie G. NOLL, Auteur ; Elizabeth J. SUSMAN, Auteur ; Chad E. SHENK, Auteur . - 2010 . - p.165-175. Langues : Anglais (eng) in Development and Psychopathology > 22-1 (January 2010) . - p.165-175 Index. décimale : PER Périodiques Résumé : Inconsistencies exist in literature examining hypothalamic–pituitary–adrenal (HPA) axis activity in children and adults who have experienced childhood abuse. Hence, the extent and manner to which childhood abuse may disrupt HPA axis development is largely unknown. To address these inconsistencies, the developmental course of nonstress cortisol in a long-term longitudinal study was assessed at six time points from childhood through adolescence and into young adulthood to determine whether childhood abuse results in disrupted cortisol activity. Nonstress, morning cortisol was measured in 84 females with confirmed familial sexual abuse and 89 nonabused, comparison females. Although dynamically controlling for co-occurring depression and anxiety, hierarchical linear modeling (HLM) showed that relative to comparison females, the linear trend for abused females was significantly less steep when cortisol was examined across development from age 6 to age 30, t (1, 180) = −2.55, p < .01, indicating attenuation in cortisol activity starting in adolescence with significantly lower levels of cortisol by early adulthood, F (1, 162) = 4.78, p < .01. As a more direct test of the attenuation hypothesis, supplemental HLM analyses of data arrayed by time since the disclosure of abuse indicated that cortisol activity was initially significantly higher, t (1, 425) = 2.18, p < .05, and slopes were significantly less steep t (1, 205) = −2.66, p < .01, for abused females. These findings demonstrate how the experience of childhood abuse might disrupt the neurobiology of stress, providing some support for the attenuation hypothesis that victims of abuse may experience cortisol hyposecretion subsequent to a period of heightened secretion. En ligne : http://dx.doi.org/10.1017/s0954579409990332 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=970

Contamination bias in the estimation of child maltreatment causal effects on adolescent internalizing and externalizing behavior problems / John M. FELT in Journal of Child Psychology and Psychiatry, 65-11 (November 2024)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 65-11 (November 2024) . - p.1419-1428 Titre : Contamination bias in the estimation of child maltreatment causal effects on adolescent internalizing and externalizing behavior problems Type de document : Texte imprimé et/ou numérique Auteurs : John M. FELT, Auteur ; Ulziimaa CHIMED-OCHIR, Auteur ; Kenneth A. SHORES, Auteur ; Anneke E. OLSON, Auteur ; Yanling LI, Auteur ; Zachary F. FISHER, Auteur ; Nilam RAM, Auteur ; Chad E. SHENK, Auteur Article en page(s) : p.1419-1428 Langues : Anglais (eng) Mots-clés : Child maltreatment  contamination  synthetic control method  causal estimation  internalizing behaviors  externalizing behaviors Index. décimale : PER Périodiques Résumé : Background When unaddressed, contamination in child maltreatment research, in which some proportion of children recruited for a nonmaltreated comparison group are exposed to maltreatment, downwardly biases the significance and magnitude of effect size estimates. This study extends previous contamination research by investigating how a dual-measurement strategy of detecting and controlling contamination impacts causal effect size estimates of child behavior problems. Methods This study included 634 children from the LONGSCAN study with 63 cases of confirmed child maltreatment after age 8 and 571 cases without confirmed child maltreatment. Confirmed child maltreatment and internalizing and externalizing behaviors were recorded every 2?years between ages 4 and 16. Contamination in the nonmaltreated comparison group was identified and controlled by either a prospective self-report assessment at ages 12, 14, and 16 or by a one-time retrospective self-report assessment at age 18. Synthetic control methods were used to establish causal effects and quantify the impact of contamination when it was not controlled, when it was controlled for by prospective self-reports, and when it was controlled for by retrospective self-reports. Results Rates of contamination ranged from 62% to 67%. Without controlling for contamination, causal effect size estimates for internalizing behaviors were not statistically significant. Causal effects only became statistically significant after controlling contamination identified from either prospective or retrospective reports and effect sizes increased by between 17% and 54%. Controlling contamination had a smaller impact on effect size increases for externalizing behaviors but did produce a statistically significant overall effect, relative to the model ignoring contamination, when prospective methods were used. Conclusions The presence of contamination in a nonmaltreated comparison group can underestimate the magnitude and statistical significance of causal effect size estimates, especially when investigating internalizing behavior problems. Addressing contamination can facilitate the replication of results across studies. En ligne : https://doi.org/10.1111/jcpp.13990 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=537 [article] Contamination bias in the estimation of child maltreatment causal effects on adolescent internalizing and externalizing behavior problems [Texte imprimé et/ou numérique] / John M. FELT, Auteur ; Ulziimaa CHIMED-OCHIR, Auteur ; Kenneth A. SHORES, Auteur ; Anneke E. OLSON, Auteur ; Yanling LI, Auteur ; Zachary F. FISHER, Auteur ; Nilam RAM, Auteur ; Chad E. SHENK, Auteur . - p.1419-1428. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 65-11 (November 2024) . - p.1419-1428 Mots-clés : Child maltreatment  contamination  synthetic control method  causal estimation  internalizing behaviors  externalizing behaviors Index. décimale : PER Périodiques Résumé : Background When unaddressed, contamination in child maltreatment research, in which some proportion of children recruited for a nonmaltreated comparison group are exposed to maltreatment, downwardly biases the significance and magnitude of effect size estimates. This study extends previous contamination research by investigating how a dual-measurement strategy of detecting and controlling contamination impacts causal effect size estimates of child behavior problems. Methods This study included 634 children from the LONGSCAN study with 63 cases of confirmed child maltreatment after age 8 and 571 cases without confirmed child maltreatment. Confirmed child maltreatment and internalizing and externalizing behaviors were recorded every 2?years between ages 4 and 16. Contamination in the nonmaltreated comparison group was identified and controlled by either a prospective self-report assessment at ages 12, 14, and 16 or by a one-time retrospective self-report assessment at age 18. Synthetic control methods were used to establish causal effects and quantify the impact of contamination when it was not controlled, when it was controlled for by prospective self-reports, and when it was controlled for by retrospective self-reports. Results Rates of contamination ranged from 62% to 67%. Without controlling for contamination, causal effect size estimates for internalizing behaviors were not statistically significant. Causal effects only became statistically significant after controlling contamination identified from either prospective or retrospective reports and effect sizes increased by between 17% and 54%. Controlling contamination had a smaller impact on effect size increases for externalizing behaviors but did produce a statistically significant overall effect, relative to the model ignoring contamination, when prospective methods were used. Conclusions The presence of contamination in a nonmaltreated comparison group can underestimate the magnitude and statistical significance of causal effect size estimates, especially when investigating internalizing behavior problems. Addressing contamination can facilitate the replication of results across studies. En ligne : https://doi.org/10.1111/jcpp.13990 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=537

Controlling contamination in child maltreatment research: Impact on effect size estimates for child behavior problems measured throughout childhood and adolescence / Chad E. SHENK in Development and Psychopathology, 34-4 (October 2022)  

Public ISBD [article]  inDevelopment and Psychopathology > 34-4 (October 2022) . - p.1287-1299 Titre : Controlling contamination in child maltreatment research: Impact on effect size estimates for child behavior problems measured throughout childhood and adolescence Type de document : Texte imprimé et/ou numérique Auteurs : Chad E. SHENK, Auteur ; Joseph R. RAUSCH, Auteur ; Kenneth A. SHORES, Auteur ; Elizabeth ALLEN, Auteur ; Anneke E. OLSON, Auteur Article en page(s) : p.1287-1299 Langues : Anglais (eng) Mots-clés : Adolescent  Child  Child Abuse  Humans  Longitudinal Studies  Problem Behavior  Self Report  child maltreatment  contamination  externalizing behaviors  internalizing behaviors Index. décimale : PER Périodiques Résumé : Contamination, when members of a comparison or control condition are exposed to the event or intervention under scientific investigation, is a methodological phenomenon that downwardly biases the magnitude of effect size estimates. This study tested a novel approach for controlling contamination in observational child maltreatment research. Data from The Longitudinal Studies of Child Abuse and Neglect (LONGSCAN; N = 1354) were obtained to estimate the risk of confirmed child maltreatment on trajectories of internalizing and externalizing behaviors before and after controlling contamination. Baseline models, where contamination was uncontrolled, demonstrated a risk for greater internalizing (b = .29, p< .001, d = .40) and externalizing (b = .14, p = .040, d = .19) behavior trajectories. Final models, where contamination was controlled by separating the comparison condition into subgroups that did or did not self-report maltreatment, also demonstrated risks for greater internalizing (b = .37, p< .001, d = .51) and externalizing (b = .22, p = .028, d = .29) behavior trajectories. However, effect size estimates in final models were 27.5%-52.6% larger compared to baseline models. Controlling contamination in child maltreatment research can strengthen effect size estimates for child behavior problems, aiding future child maltreatment research design and analysis. En ligne : http://dx.doi.org/10.1017/s0954579420002242 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=488 [article] Controlling contamination in child maltreatment research: Impact on effect size estimates for child behavior problems measured throughout childhood and adolescence [Texte imprimé et/ou numérique] / Chad E. SHENK, Auteur ; Joseph R. RAUSCH, Auteur ; Kenneth A. SHORES, Auteur ; Elizabeth ALLEN, Auteur ; Anneke E. OLSON, Auteur . - p.1287-1299. Langues : Anglais (eng) in Development and Psychopathology > 34-4 (October 2022) . - p.1287-1299 Mots-clés : Adolescent  Child  Child Abuse  Humans  Longitudinal Studies  Problem Behavior  Self Report  child maltreatment  contamination  externalizing behaviors  internalizing behaviors Index. décimale : PER Périodiques Résumé : Contamination, when members of a comparison or control condition are exposed to the event or intervention under scientific investigation, is a methodological phenomenon that downwardly biases the magnitude of effect size estimates. This study tested a novel approach for controlling contamination in observational child maltreatment research. Data from The Longitudinal Studies of Child Abuse and Neglect (LONGSCAN; N = 1354) were obtained to estimate the risk of confirmed child maltreatment on trajectories of internalizing and externalizing behaviors before and after controlling contamination. Baseline models, where contamination was uncontrolled, demonstrated a risk for greater internalizing (b = .29, p< .001, d = .40) and externalizing (b = .14, p = .040, d = .19) behavior trajectories. Final models, where contamination was controlled by separating the comparison condition into subgroups that did or did not self-report maltreatment, also demonstrated risks for greater internalizing (b = .37, p< .001, d = .51) and externalizing (b = .22, p = .028, d = .29) behavior trajectories. However, effect size estimates in final models were 27.5%-52.6% larger compared to baseline models. Controlling contamination in child maltreatment research can strengthen effect size estimates for child behavior problems, aiding future child maltreatment research design and analysis. En ligne : http://dx.doi.org/10.1017/s0954579420002242 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=488

Influence of Treatment for Disruptive Behavior Disorders on Adrenal and Gonadal Hormones in Youth / Lorah D. DORN in Journal of Clinical Child & Adolescent Psychology, 40-4 (July-August 2011)  

Public ISBD [article]  inJournal of Clinical Child & Adolescent Psychology > 40-4 (July-August 2011) . - p.562-571 Titre : Influence of Treatment for Disruptive Behavior Disorders on Adrenal and Gonadal Hormones in Youth Type de document : Texte imprimé et/ou numérique Auteurs : Lorah D. DORN, Auteur ; David J. KOLKO, Auteur ; Chad E. SHENK, Auteur ; Elizabeth J. SUSMAN, Auteur ; Oscar BUKSTEINE, Auteur Année de publication : 2011 Article en page(s) : p.562-571 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : The study examined whether psychosocial intervention for children diagnosed with a disruptive behavior disorder (DBD; n = 84) changed concentrations of cortisol and testosterone across a 3-year follow-up when compared to a matched, nonclinical, healthy comparison (HC; n = 69) group. Boys and girls (6–11 years) with a DBD were randomly assigned to one of two arms of a multimethod intervention. Hierarchical linear modeling revealed that children undergoing psychosocial intervention for a DBD experienced a significant decline in diurnal cortisol change over time (p < .05) when compared to the HC condition. Boys with a DBD diagnosis had significantly lower mean cortisol concentrations prior to treatment (p < .05) and showed a significantly steeper increase in mean cortisol over time (p < .05) when compared to HC boys. Treatment effects for diurnal cortisol change were replicated in the boys-only analysis. No treatment effects were noted for testosterone in either analysis. En ligne : http://dx.doi.org/10.1080/15374416.2011.581614 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=132 [article] Influence of Treatment for Disruptive Behavior Disorders on Adrenal and Gonadal Hormones in Youth [Texte imprimé et/ou numérique] / Lorah D. DORN, Auteur ; David J. KOLKO, Auteur ; Chad E. SHENK, Auteur ; Elizabeth J. SUSMAN, Auteur ; Oscar BUKSTEINE, Auteur . - 2011 . - p.562-571. Langues : Anglais (eng) in Journal of Clinical Child & Adolescent Psychology > 40-4 (July-August 2011) . - p.562-571 Index. décimale : PER Périodiques Résumé : The study examined whether psychosocial intervention for children diagnosed with a disruptive behavior disorder (DBD; n = 84) changed concentrations of cortisol and testosterone across a 3-year follow-up when compared to a matched, nonclinical, healthy comparison (HC; n = 69) group. Boys and girls (6–11 years) with a DBD were randomly assigned to one of two arms of a multimethod intervention. Hierarchical linear modeling revealed that children undergoing psychosocial intervention for a DBD experienced a significant decline in diurnal cortisol change over time (p < .05) when compared to the HC condition. Boys with a DBD diagnosis had significantly lower mean cortisol concentrations prior to treatment (p < .05) and showed a significantly steeper increase in mean cortisol over time (p < .05) when compared to HC boys. Treatment effects for diurnal cortisol change were replicated in the boys-only analysis. No treatment effects were noted for testosterone in either analysis. En ligne : http://dx.doi.org/10.1080/15374416.2011.581614 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=132

A longitudinal study of several potential mediators of the relationship between child maltreatment and posttraumatic stress disorder symptoms / Chad E. SHENK in Development and Psychopathology, 26-1 (February 2014)  

Public ISBD [article]  inDevelopment and Psychopathology > 26-1 (February 2014) . - p.81-91 Titre : A longitudinal study of several potential mediators of the relationship between child maltreatment and posttraumatic stress disorder symptoms Type de document : Texte imprimé et/ou numérique Auteurs : Chad E. SHENK, Auteur ; Frank W. PUTNAM, Auteur ; Joseph R. RAUSCH, Auteur ; James L. PEUGH, Auteur ; Jennie G. NOLL, Auteur Article en page(s) : p.81-91 Langues : Français (fre) Index. décimale : PER Périodiques Résumé : Child maltreatment is a reliable predictor of posttraumatic stress disorder (PTSD) symptoms. However, not all maltreated children develop PTSD symptoms, suggesting that additional mediating variables explain how certain maltreated children develop PTSD symptoms and others do not. The current study tested three potential mediators of the relationship between child maltreatment and subsequent PTSD symptoms: (a) respiratory sinus arrhythmia reactivity, (b) cortisol reactivity, and (c) experiential avoidance, or the unwillingness to experience painful private events, such as thoughts and memories. Maltreated (n = 51) and nonmaltreated groups (n = 59) completed a stressor paradigm, a measure of experiential avoidance, and a semistructured interview of PTSD symptoms. One year later, participants were readministered the PTSD symptoms interview. Results of a multiple mediator model showed the set of potential mediators mediated the relationship between child maltreatment and subsequent PTSD symptoms. However, experiential avoidance was the only significant, specific indirect effect, demonstrating that maltreated children avoiding painful private events after the abuse were more likely to develop a range of PTSD symptoms 1 year later. These results highlight the importance of experiential avoidance in the development of PTSD symptoms for maltreated children, and implications for secondary prevention and clinical intervention models are discussed. En ligne : http://dx.doi.org/10.1017/S0954579413000916 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=224 [article] A longitudinal study of several potential mediators of the relationship between child maltreatment and posttraumatic stress disorder symptoms [Texte imprimé et/ou numérique] / Chad E. SHENK, Auteur ; Frank W. PUTNAM, Auteur ; Joseph R. RAUSCH, Auteur ; James L. PEUGH, Auteur ; Jennie G. NOLL, Auteur . - p.81-91. Langues : Français (fre) in Development and Psychopathology > 26-1 (February 2014) . - p.81-91 Index. décimale : PER Périodiques Résumé : Child maltreatment is a reliable predictor of posttraumatic stress disorder (PTSD) symptoms. However, not all maltreated children develop PTSD symptoms, suggesting that additional mediating variables explain how certain maltreated children develop PTSD symptoms and others do not. The current study tested three potential mediators of the relationship between child maltreatment and subsequent PTSD symptoms: (a) respiratory sinus arrhythmia reactivity, (b) cortisol reactivity, and (c) experiential avoidance, or the unwillingness to experience painful private events, such as thoughts and memories. Maltreated (n = 51) and nonmaltreated groups (n = 59) completed a stressor paradigm, a measure of experiential avoidance, and a semistructured interview of PTSD symptoms. One year later, participants were readministered the PTSD symptoms interview. Results of a multiple mediator model showed the set of potential mediators mediated the relationship between child maltreatment and subsequent PTSD symptoms. However, experiential avoidance was the only significant, specific indirect effect, demonstrating that maltreated children avoiding painful private events after the abuse were more likely to develop a range of PTSD symptoms 1 year later. These results highlight the importance of experiential avoidance in the development of PTSD symptoms for maltreated children, and implications for secondary prevention and clinical intervention models are discussed. En ligne : http://dx.doi.org/10.1017/S0954579413000916 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=224

Symptoms of major depressive disorder subsequent to child maltreatment: Examining change across multiple levels of analysis to identify transdiagnostic risk pathways / Chad E. SHENK in Development and Psychopathology, 27-4 (Part 2) (November 2015)  

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