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Analyzing body dissatisfaction and gender dysphoria in the context of minority stress among transgender adolescents. Child Adolesc Psychiatry Ment Health 2024; 18:30. [PMID: 38431595 PMCID: PMC10909265 DOI: 10.1186/s13034-024-00718-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 02/05/2024] [Indexed: 03/05/2024] Open
Abstract
BACKGROUND Gender dysphoria among transgender adolescents has predominantly been examined in relation to body dissatisfaction. While in adult transgender samples, body dissatisfaction is higher than in cisgender controls, this has so far rarely been investigated for adolescents. In the context of a cisnormative society, the impact of influences from the social environment on body dissatisfaction and gender dysphoria has been neglected in research. Therefore, this study aimed to (1) provide a detailed analysis of body dissatisfaction among young transgender people and (2) investigate whether body dissatisfaction and gender dysphoria are associated with experiences of minority stress such as trans hostility and poor peer relations (PPR). METHODS The paper presents a cross-sectional study among a sample of transgender adolescents, presenting at a specialized outpatient counseling clinic (N = 99; age M = 15.36, SD = 1.85). First, body dissatisfaction (assessed by the Body-Image-Scale; BIS), was explored and compared to data from a population-based control group of cisgender peers (N = 527; age M = 14.43, SD = 0.97). Second, within a clinic-referred transgender subsample (n = 74), associations between body dissatisfaction and gender dysphoria (measured by Utrecht Gender Dysphoria Scale; UGDS), PPR (measured by the Youth-Self-Report; YSR-R), and trans hostile experiences (assessed in clinical interview) were examined by correlations, t-tests and multivariate regression. RESULTS Transgender adolescents reported more body dissatisfaction than cisgender peers. The dissatisfaction with sex characteristics, non-hormonal reactive body regions and the total score for body dissatisfaction were positively related with gender dysphoria. The majority had experienced trans hostility in the present and/or past (54.1%) and PPR (63.5%). More body dissatisfaction was correlated with more PPR regarding visible body parts i.e., hair, overall appearance and muscles, whilst PPR and gender dysphoria were not associated. Transgender adolescents who experienced trans hostility showed higher gender dysphoria and PPR, but not more body dissatisfaction. In multiple regression, trans hostility predicted gender dysphoria, whilst age and PPR predicted body dissatisfaction. DISCUSSION Experiences of minority-stress differentially interact with body dissatisfaction and gender dysphoria among transgender adolescents. Social correlates of body dissatisfaction and gender dysphoria must be considered when working with young transgender people.
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Almost 2 years into the COVID-19 pandemic: an update on parental stress, parent mental health, and the occurrence of child maltreatment. Eur Child Adolesc Psychiatry 2023; 32:2593-2609. [PMID: 36739338 PMCID: PMC9899111 DOI: 10.1007/s00787-023-02147-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Accepted: 01/19/2023] [Indexed: 02/05/2023]
Abstract
Increased parental stress, poorer mental health, and an increase in the occurrence of child maltreatment (CM) have been reported in earlier phases of the COVID-19 pandemic. However, data from later phases of the pandemic are not yet available. We conducted a cross-sectional, representative survey among 1087 parents (48.8% female; mean age 41.72 years, SD = 9.15) in Germany in December 2021. Data were compared to a previous representative sample, assessed in August 2020 (N = 1024), and to normative scores of the outcome measures. Predictors for the occurrence of CM were analyzed by logistic regression. Pandemic-related stress and general stress were higher and physical and mental health were poorer in the December 2021 sample than in the August 2020 sample. Occurrence rates of CM varied between 5 and 56%. Verbal emotional abuse (n = 607, 56%), witnessing domestic violence (n = 446, 41%), and emotional neglect (n = 435, 40%) were most frequently reported. For these subtypes, parental risk for alcohol abuse (OR 2.1-2.7) and parental recent experience of violence (OR 2.1-5.1) were the strongest predictors. Across all subtypes of CM, parents reporting child maltreatment showed poorer scores on all stress outcomes, with medium-large-effect sizes. Results confirm a high burden within the families, almost 2 years into the pandemic. Occurrence rates of a broad spectrum of CM subtypes raise further concerns for the well-being of children. Family-oriented intervention efforts are needed to stabilize families and provide targeted support. Longitudinal studies are needed for a description of families at risk for poorer outcomes.
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[Parental Burden, Need for Support and Resources After Almost Two Years of COVID-19-Pandemic: Results of a Representative Study in Germany]. Prax Kinderpsychol Kinderpsychiatr 2023; 72:287-304. [PMID: 37218556 DOI: 10.13109/prkk.2023.72.4.287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Studies assessing the burden of families in the second year of the COVID-19-pandemic and the need for support are scarce. Burden, negative and positive changes, resources, and the need for support during the COVID-19-pandemic of a representative sample of 1,087 parents (52,0 % female; mean age 40,4) of minors in Germany were assessed in December 2021. We used a mixed-method approach.More than 50 % percent of parents were burdened about the development of the pandemic (58,5 %), restrictions in activities outside (54,8 %), the mental health of others (54,0 %), and social distance (53,7 %). Parents reported negative changes in partnership (esp. increase in conflicts and crises; 29,4 %), school development (esp. deterioration of school performance; 25,7 %), and mental health of children (38,1 %). In retrospect, over one-third of the parents saw a need for better political communication (36,0 %) and financial support (34,1 %) during the pandemic. In December, 23,8 % of parents still reported the need for support: financial (51,3 %), social (26,6 %), and psychotherapy for themselves (25,8 %). However, parents reported positive changes, especially within the family, feelings of gratitude and new attitudes. Social interaction and positive activities were identified as resources. In the second year of the pandemic, parents experienced much burden and needed support. Interventions and policies should be more targeted and needs-oriented.
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Belastungen, positive Veränderungen und Ressourcen von Familien in der COVID-19-Pandemie. KINDHEIT UND ENTWICKLUNG 2022. [DOI: 10.1026/0942-5403/a000375] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Zusammenfassung. Theoretischer Hintergrund: Die Maßnahmen zur Eindämmung der COVID-19-Pandemie stellten Familien vor Herausforderungen. Es fehlt an Studien, welche die umfassende Vielfalt der subjektiven Erfahrungen abbilden. Fragestellung: Ziel ist, Belastungen, positive Veränderungen und Ressourcen in Familien zu erfassen. Methode: 4 967 Eltern (87.6 % weiblich, 86.7 % mit Hochschulreife) minderjähriger Kinder (0 – 17 Jahre) nahmen an einer Online-Erhebung im August 2020 teil. Belastungen, positive Veränderungen und Ressourcen während der Pandemie wurden durch offene Fragen erfasst. Auf Basis der Freitextantworten wurde ein Kategoriensystem entwickelt und ausgewertet. Ergebnisse: Die Vereinbarkeit von Beruf und Privatleben (12 %), Sorgen um die Entwicklung der Pandemie (11 %) und eingeschränkte Betreuung und schulische Bildung (9 %) wurden am häufigsten als Belastungen genannt. Positive Veränderungen waren vermehrte Wertschätzung, Dankbarkeit und neue Einstellungen (16 %), engere Beziehungen innerhalb der Familie (13 %) und mehr Zeit mit Menschen (11 %). Wichtige Ressourcen für Familien waren das soziale Miteinander innerhalb der Familie (19 %) und positive Aktivitäten (13 %). Diskussion und Schlussfolgerung: Ansatzpunkte für familienzentrierte Präventionsmaßnahmen sind die Offenhaltung von Betreuungseinrichtungen, eine Flexibilisierung der Arbeitssituation, eine fortlaufende Aufklärung über notwendige Maßnahmen, Stärkung digitaler Unterstützungsangebote einschließlich der Verbesserung der Medienkompetenz, die Ermöglichung von Freizeitaktivitäten, sowie die Verbesserung psychosozialer Unterstützungsmaßnahmen.
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Treatment for Pediatric Functional Abdominal Pain: An Initial Examination of Reciprocal Associations Between Pain, Functional Impairment, and Parental Distress. J Pediatr Psychol 2022; 47:483-496. [PMID: 35237811 DOI: 10.1093/jpepsy/jsac011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 02/06/2022] [Accepted: 02/06/2022] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVE While cross-sectional studies underline that child and parent factors in pediatric chronic pain are reciprocally related, so far, little is known on their prospective relationship, especially in treatment contexts. This study aims to analyze directions of influence between child and parental outcomes using data from an intervention study. METHODS The sample covered 109 families with children aged 7-13 years diagnosed with functional abdominal pain (FAP). Child outcomes included pain and impairment, and parental outcomes covered caregiver-specific distress including both parental personal time burden (i.e., less time available for personal needs) and emotional burden due to child's pain (i.e., increased worries). Cross-lagged panel analyses examined the directions of the relations between child and parental outcomes across time (pretreatment T1, post-treatment T2, and 3-month follow-up and 12-month follow-up T3/T4). RESULTS First, a significant improvement over time in all measures was observed. Cross-lagged effects were found for less parental personal time burden at T2, predicting both less pain (β = -0.254, p = .004) and less impairment (β = -0.150, p = .039) at T3. Higher baseline pain was predictive for higher parental emotional burden after treatment (β = -0.130, p = .049) and, reversely, for less emotional burden at 12-month follow-up (β = 0.261, p = .004). CONCLUSIONS Addressing parental personal time burden in FAP treatment might possibly support the improvement on the child level. Replication of results in larger samples is warranted to gain more insight into the directions of influence and, in that way, to optimize treatment for pediatric FAP.
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Families in the COVID-19 pandemic: parental stress, parent mental health and the occurrence of adverse childhood experiences-results of a representative survey in Germany. Eur Child Adolesc Psychiatry 2022; 31:1-13. [PMID: 33646416 PMCID: PMC7917379 DOI: 10.1007/s00787-021-01739-0] [Citation(s) in RCA: 137] [Impact Index Per Article: 68.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 02/08/2021] [Indexed: 12/01/2022]
Abstract
Parenting during the COVID-19 pandemic is highly challenging, with parents having to meet various demands simultaneously. An increase in adverse childhood experiences (ACEs) has been widely predicted, but empirical evidence is still scarce. This study aimed to (1) generate representative data on pandemic-related stress, parental stress, general stress, parental subjective and mental health, and the occurrence of ACEs; (2) identify risk factors for an increase in ACEs, and (3) provide qualitative data on parents' experiences. A representative survey was conducted in Germany in August 2020 with 1024 parents of underage children (Mage = 41.70, 50.9% female). More than 50% of parents reported being stressed by social distancing and the closure of schools and childcare facilities. Parental stress increased significantly during the pandemic (d = 0.21). Subgroups of parents also reported very high levels of depressive symptoms (12.3%) and anxiety (9.7%). Up to one-third of the sample reported ACEs in the child's lifetime. In this group, 29.1% reported an increase in children witnessing domestic violence during the pandemic, and 42.2% an increase verbal emotional abuse. These families were characterized by higher parental stress, job losses, and younger parent and child age. Positive aspects of the pandemic related primarily to personal or family life (e.g. slower pace of life, increase in family time). While some parents coped well, a particularly negative pattern was observed in a subgroup of families that experienced an increase in ACEs. Parental stress emerged as important target point for interventions addressing the negative sequelae of the pandemic.
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Correction to: Families in the COVID‑19 pandemic: parental stress, parent mental health and the occurrence of adverse childhood experiences-results of a representative survey in Germany. Eur Child Adolesc Psychiatry 2022; 31:2013-2016. [PMID: 34159498 PMCID: PMC8219179 DOI: 10.1007/s00787-021-01816-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Assessment of Psychological Distress and Peer Relations among Trans Adolescents-An Examination of the Use of Gender Norms and Parent-Child Congruence of the YSR-R/CBCL-R among a Treatment-Seeking Sample. CHILDREN-BASEL 2021; 8:children8100864. [PMID: 34682130 PMCID: PMC8535001 DOI: 10.3390/children8100864] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 09/23/2021] [Accepted: 09/23/2021] [Indexed: 11/16/2022]
Abstract
Among trans adolescents, increased psychological distress is reported in the literature. The goal of this study was to examine psychological distress, associated peer relations and parent report congruence among the treatment-seeking sample of the Gender Identity Special Consultation (GISC) for youth at the Charité Berlin. Further, differences between the instruments' binary gender norms were investigated. Retrospectively, we analyzed clinical data derived from the GISC. By initial interviews and using the Youth Self-Report and Child Behavior Checklist, n = 50 trans adolescents aged 12-18 years (M = 15.5) were examined for psychological problems and peer relations. Congruence between self and parent report was analyzed by correlations. Half of the sample reported suicidality, self-harm and bullying. Trans adolescents showed significantly higher internalizing and total problems than the German norm population. The congruence between self and parent report proved to be moderate to high. The level of congruence and poor peer relations were identified as predictors of internalizing problems. Significant differences between the female vs. male gender norms emerged regarding mean scores and the number of clinically significant cases. Data provide valuable implications for intervention on a peer and family level. There are limitations to the suitability of questionnaires that use binary gender norms, and further research on adequate instruments and assessment is needed.
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Reply to Comments on the editor Re: Carsten Posovszky et al. “Roles of Lactose and Fructose Malabsorption and Dietary Outcomes in Children Presenting with Chronic Abdominal Pain.”, Nutrients 2019, 11(12), 3063. Nutrients 2020; 12:nu12061556. [PMID: 32471130 PMCID: PMC7352489 DOI: 10.3390/nu12061556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 04/14/2020] [Indexed: 11/25/2022] Open
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Roles of Lactose and Fructose Malabsorption and Dietary Outcomes in Children Presenting with Chronic Abdominal Pain. Nutrients 2019; 11:nu11123063. [PMID: 31888122 PMCID: PMC6950325 DOI: 10.3390/nu11123063] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 12/01/2019] [Accepted: 12/09/2019] [Indexed: 12/12/2022] Open
Abstract
Intolerance to lactose or fructose is frequently diagnosed in children with chronic abdominal pain (CAP). However, the causal relationship remains a matter of discussion. A cohort of 253 patients, aged 7–12 years, presenting with unexplained CAP received standardized diagnostics. Additional diagnostic tests were performed based on their medical history and physical and laboratory investigations. Fructose and lactose hydrogen breath tests (H2BT) as well as empiric diagnostic elimination diets were performed in 135 patients reporting abdominal pain related to the consumption of lactose or fructose to evaluate carbohydrate intolerance as a potential cause of CAP. Carbohydrate malabsorption by H2BT was found in 55 (41%) out of 135 patients. An abnormal increase in H2BT was revealed in 30% (35/118) of patients after fructose consumption and in 18% (20/114) of patients after lactose administration. Forty-six percent (25/54) reported pain relief during a diagnostic elimination diet. In total, 17 patients had lactose malabsorption, 29 fructose malabsorption, and nine combined carbohydrate malabsorption. Carbohydrate intolerance as a cause of CAP was diagnosed at follow-up in only 18% (10/55) of patients with malabsorption after the elimination of the respective carbohydrate. Thus, carbohydrate malabsorption appears to be an incidental finding in children with functional abdominal pain disorders, rather than its cause. Therefore, testing of carbohydrate intolerance should only be considered in children with a strong clinical suspicion and with the goal to prevent long-term unnecessary dietary restrictions in children suffering from CAP.
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Quality of life among parents seeking treatment for their child’s functional abdominal pain. Qual Life Res 2018; 27:2557-2570. [DOI: 10.1007/s11136-018-1916-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/11/2018] [Indexed: 12/16/2022]
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Do Mothers Benefit from a Child-Focused Cognitive Behavioral Treatment (CBT) for Childhood Functional Abdominal Pain? A Randomized Controlled Pilot Trial. CHILDREN (BASEL, SWITZERLAND) 2017; 4:E13. [PMID: 28212279 PMCID: PMC5332915 DOI: 10.3390/children4020013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 02/03/2017] [Accepted: 02/06/2017] [Indexed: 12/12/2022]
Abstract
While the efficacy of cognitive-behavioral treatment (CBT) approaches for childhood functional abdominal pain (FAP) is well-established for child outcomes, only a few studies have reported on parent-specific outcomes. This randomized controlled pilot trial analyzed effects of a group CBT on maternal variables (i.e., pain-related behavior, worries and self-efficacy, as well as general psychosocial strain). Methods: The sample constituted of 15 mothers in the intervention group (IG) and 14 mothers in the waitlist control group (WLC). Outcome measures were assessed pre-treatment, post-treatment and at three months follow-up. Results: Analyses revealed significant, large changes in maladaptive maternal reactions related to the child's abdominal pain in the IG compared to the WLC-i.e., reduced attention (d = 0.95), medical help-seeking (d = 0.92), worries (d = 1.03), as well as a significant increase in behaviors that encourage the child's self-management (d = 1.03). In addition, maternal self-efficacy in dealing with a child's pain significantly increased in the IG as well (d = 0.92). Treatment effects emerged post-treatment and could be maintained until three months follow-up. There were no effects on general self-efficacy and maternal quality of life. Conclusion: While these results are promising, and underline the efficacy of the CBT approach for both the child and mothers, further studies, including long-term follow-ups, are warranted.
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Analysis of Attentional Bias towards Attractive and Unattractive Body Regions among Overweight Males and Females: An Eye-Movement Study. PLoS One 2015; 10:e0140813. [PMID: 26479500 PMCID: PMC4610678 DOI: 10.1371/journal.pone.0140813] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2015] [Accepted: 09/29/2015] [Indexed: 11/18/2022] Open
Abstract
Background Body image distortion is highly prevalent among overweight individuals. Whilst there is evidence that body-dissatisfied women and those suffering from disordered eating show a negative attentional bias towards their own unattractive body parts and others’ attractive body parts, little is known about visual attention patterns in the area of obesity and with respect to males. Since eating disorders and obesity share common features in terms of distorted body image and body dissatisfaction, the aim of this study was to examine whether overweight men and women show a similar attentional bias. Methods/Design We analyzed eye movements in 30 overweight individuals (18 females) and 28 normal-weight individuals (16 females) with respect to the participants’ own pictures as well as gender- and BMI-matched control pictures (front and back view). Additionally, we assessed body image and disordered eating using validated questionnaires. Discussion The overweight sample rated their own body as less attractive and showed a more disturbed body image. Contrary to our assumptions, they focused significantly longer on attractive compared to unattractive regions of both their own and the control body. For one’s own body, this was more pronounced for women. A higher weight status and more frequent body checking predicted attentional bias towards attractive body parts. We found that overweight adults exhibit an unexpected and stable pattern of selective attention, with a distinctive focus on their own attractive body regions despite higher levels of body dissatisfaction. This positive attentional bias may either be an indicator of a more pronounced pattern of attentional avoidance or a self-enhancing strategy. Further research is warranted to clarify these results.
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Abstract
BACKGROUND Functional abdominal pain (FAP) is not only a highly prevalent disease but also poses a considerable burden on children and their families. Untreated, FAP is highly persistent until adulthood, also leading to an increased risk of psychiatric disorders. Intervention studies underscore the efficacy of cognitive behavioral treatment approaches but are limited in terms of sample size, long-term follow-up data, controls and inclusion of psychosocial outcome data. METHODS/DESIGN In a multicenter randomized controlled trial, 112 children aged 7 to 12 years who fulfill the Rome III criteria for FAP will be allocated to an established cognitive behavioral training program for children with FAP (n = 56) or to an active control group (focusing on age-appropriate information delivery; n = 56). Randomization occurs centrally, blockwise and is stratified by center. This study is performed in five pediatric gastroenterology outpatient departments. Observer-blind assessments of outcome variables take place four times: pre-, post-, 3- and 12-months post-treatment. Primary outcome is the course of pain intensity and frequency. Secondary endpoints are health-related quality of life, pain-related coping and cognitions, as well as self-efficacy. DISCUSSION This confirmatory randomized controlled clinical trial evaluates the efficacy of a cognitive behavioral intervention for children with FAP. By applying an active control group, time and attention processes can be controlled, and long-term follow-up data over the course of one year can be explored. TRIAL REGISTRATION DRKS00005038 (date: 25 July 2013); NCT02030392 (date: 7 January 2014).
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Health-related quality of life in children with abdominal pain due to functional or organic gastrointestinal disorders. J Pediatr Psychol 2013; 39:45-54. [PMID: 24055816 DOI: 10.1093/jpepsy/jst070] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVE Comparing health-related quality of life (HRQOL) in children suffering from functional and organic gastrointestinal disorders and to identify predictors for HRQOL. METHODS Children with functional (n = 70) and organic (n = 100) gastrointestinal disorders, aged 8-18 years and referred to a pediatric gastroenterologist, completed questionnaires assessing pain severity, coping, and HRQOL. RESULTS The sample reported low HRQOL scores, even significantly lower compared with reference values of chronically ill children, derived from normative data of KINDL-R, a generic QOL questionnaire. HRQOL was not significantly associated with age, gender, duration of pain, and diagnosis (functional gastrointestinal disorder vs. organic gastrointestinal disorder). Pain severity and catastrophizing were significantly associated with HRQOL, with catastrophizing fully mediating the relationship between pain and HRQOL. CONCLUSION The emotional burden associated with chronic abdominal pain-regardless of its cause-is enormous. Interventions should target the children's coping strategies, as catastrophizing seems to be the causal link between pain and HRQOL.
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Mouse paracentric inversion In(3)55Rk mutates the urate oxidase gene. CYTOGENETICS AND CELL GENETICS 2001; 93:77-82. [PMID: 11474184 DOI: 10.1159/000056953] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The paracentric inversion In(3)55Rk on mouse Chromosome 3 (Chr 3) was induced by cesium irradiation. Genetic crosses indicate the proximal breakpoint cosegregates with D3Mit324 and D3Mit92; the distal breakpoint cosegregates with D3Mit127, D3Mit160, and D3Mit200. Giemsa-banded chromosomes show the inversion spans approximately 80% of Chr 3. The proximal breakpoint occurs within band 3A2, not 3B as reported previously; the distal breakpoint occurs within band 3H3. Mice homozygous for the inversion exhibit nephropathy indicative of uricase deficiency. Southern blot analyses of urate oxidase, Uox, show two RFLPs of genomic mutant DNA: an EcoRI site between exons 4-8 and a BamHI site 3' to exon 6. Mutant cDNA fails to amplify downstream of base 844 at the 3' end of exon 7. FISH analysis of chromosomes from inversion heterozygotes, using a cosmid clone containing genomic wild-type DNA for Uox exons 2-4, shows that a 5' segment of the mutated Uox allele on the inverted chromosome has been transposed from the distal breakpoint region to the proximal breakpoint region. Clinical, histopathological, and Northern analyses indicate that our radiation-induced mutation, uox(In), is a putative null.
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Abstract
Endogenous Candida endophthalmitis resulting from candidemia in low-birth-weight infants usually occurs as a retinochoroiditis, which is effectively treated with systemic antifungal agents. We report a case of Candida endophthalmitis that recurred 4 months after completion of systemic antifungal therapy. The recurrent Candida infection affected primarily the iris and lens, rather than the retina and choroid. Vitrectomy was required for diagnosis and treatment.
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