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Reaction Index (reaction + index)

Distribution by Scientific Domains

Medical Sciences	57%
Psychology	42%

Selected Abstracts

Posttraumatic stress reactions in siblings after mutual disaster: Relevance of family factors

JOURNAL OF TRAUMATIC STRESS, Issue 2 2010
Egil Nygaard
In this study, the importance of family factors in the development of posttraumatic stress reactions in children after trauma is studied by comparing siblings and nonsiblings who experienced the tsunami in Southeast Asia in 2004 as tourists. Thirty-eight sibling pairs aged 6,17 years were interviewed using the UCLA Posttraumatic Stress Disorder Reaction Index. The sibling differences were similar to differences found in randomly selected children in the same sample, indicating that family influences may not be as important as anticipated. The results are an important contribution to our understanding of what contributes to and influences the development of posttrauma reactions in children. They also suggest the importance of conducting individual assessments even after mutually experienced trauma. [source]

The relationship between acute stress disorder and posttraumatic stress disorder in injured children,

JOURNAL OF TRAUMATIC STRESS, Issue 6 2007
Richard A. Bryant
This study indexed the relationship between acute stress disorder (ASD) and subsequent posttraumatic stress disorder (PTSD) in injured children. Consecutive children between 7,13 years admitted to a hospital after traumatic injury (n = 76) were assessed for ASD. Children were followed up 6-months posttrauma (n = 62), and administered the PTSD Reaction Index. Acute stress disorder was diagnosed in 10% of patients, and 13% satisfied criteria for PTSD. At 6-months posttrauma, PTSD was diagnosed in 25% of patients who were diagnosed with ASD. Acute stress reactions that did not include dissociation provided better prediction of PTSD than full ASD criteria. These findings suggest that the current ASD diagnosis is not optimal in identifying younger children who are high risk for PTSD development. [source]

Posttraumatic Symptoms, Functional Impairment, and Coping among Adolescents on Both Sides of the Israeli,Palestinian Conflict: A Cross-Cultural Approach

APPLIED PSYCHOLOGY, Issue 4 2009
Ruth Pat-Horenczyk
This study assessed the effects of the ongoing violence on the mental health of Palestinian and Israeli youths. Parallel instruments were developed and adapted, as part of a collaborative project, in order to assess, in each society: (1) differential rates of exposure to the conflict, (2) the association between exposure and the severity of posttraumatic symptoms (PTS), and (3) the inter-relationships among PTS, functional impairment, somatic complaints, and coping strategies. Participants were 1,016 Israeli and 1,235 Palestinian adolescents. A self-report questionnaire assessed exposure. PTS was measured using the UCLA PTSD Reaction Index, functional impairment and somatic complaints were measured with the DISC, and coping strategies were assessed with Brief Cope. In both societies, greater exposure to conflict-related violence was associated with more PTS and more somatic complaints, with girls reporting more distress than boys. A total of 6.8 per cent of the Israeli students and 37.2 per cent of the Palestinian students met criteria for Post Traumatic Stress Disorder (PTSD). In both societies, but more pronounced in the Palestinian Authority, adolescents reported significant levels of functional impairment, mainly in the area of school functioning. Students with PTSD reported more somatic complaints as well as greater functional impairment. The results show the serious psychological impact of the ongoing violent conflict on Israeli and Palestinian students and point to the need to develop appropriate school-based interventions to address their mental health needs. Cette étude évalue les effets de la violence continuelle sur la santé mentale des jeunes palestiniens et israéliens. Des instruments analogues ont été développés et adaptés, dans le cadre d'un projet de collaboration, afin d'évaluer dans chaque société: (1) les différences de taux d'exposition au conflit, (2) l'association entre l'exposition et la sévérité des symptômes post-traumatiques (PTS) et (3) les interrelations entre les PTS, les troubles fonctionnels, les plaintes somatiques et les stratégies de faire-face. 1016 adolescents israéliens et 1235 adolescents palestiniens ont participéà cette étude. Un questionnaire auto-administré mesure l'exposition au conflit. Les PTS sont mesurés par l'utilisation de l'UCLA PTSD Reaction Index, les troubles fonctionnels et les plaintes somatiques sont approchés par le DISC, et les stratégies de faire-face par le Brief Cope. Dans les deux sociétés, une plus grande exposition au conflit et à ses violences est associée à des PTS plus importants et à plus de plaintes somatiques, les filles manifestant plus de détresse que les garçons. Un total de 6.8% des étudiants israéliens et 37.2% des étudiants palestiniens répondent à des critères du Post Traumatic Stress Disorder (PTSD). Dans les deux sociétés, mais de façon plus prononcée dans l'Autorité palestinienne, les adolescents rapportent des niveaux significatifs de troubles fonctionnels, principalement dans le domaine du fonctionnement scolaire. Les étudiants avec PTSD manifestent plus de plaintes somatiques, il en va de même pour les troubles fonctionnels. Les résultats montrent le sérieux impact psychologique d'un conflit violent et continuel sur les étudiants israéliens et palestiniens et signale le besoin de développer des interventions scolaires appropriées à leurs besoins en matière de santé mentale. [source]

A confidence interval for the reaction index

CONTACT DERMATITIS, Issue 4 2010
Oliver Kuss
No abstract is available for this article. [source]

FS04.5 Iodopropynylbutyl carbamate (IPBC) 0.2% is suggested for patch testing of patients with eczema possibly related to preservatives

CONTACT DERMATITIS, Issue 3 2004
Jochen Brasch
Iodopropynylbutyl carbamate (IPBC)is a preservative that has been increasingly used for skin care products and cosmetics within the last years and the first cases of contact sensitization have meanwhile been reported. Therefore, a surveillance for IPBC contact allergy is now necessary. Our study was aimed to find out a suitable test concentration of IPBC for this purpose. The data 8106 patients tested by 23 centres of the German Contact Dermatitis Research Group (DKG) and the Information Network of Departments of Dermatology (IVDK)in the time from May 2001 to July 2003 with IPBC in concentrations of 0.1%, 0.2%, 0.3%, and 0.5% were retrospectively evaluated. Criteria considered to determine the optimal test concentration of IPBC were the reaction index, the positivity ratio, the rate of crescendo reactions, and the relation of IPBC-reactions with MOAHLFA-indices, with irritant reactions to sodium lauryl sulfate, and with positive reactions to the most common standard contact allergens and 4 other preservatives. For statistical evaluations the exact McNemar test was applied and odds ratios were calculated according to the profile likelihood method, as derived from logistic regression analyses. The rate of positive reactions to IPBC increased from 0.5% with IPBC 0.1% to 1.7% with IPBC 0.5%, but there was a problem with sensitivity or specificity with both of these 2 concentrations. Therefore, we focused on IPBC 0.2%(0.8% positive reactions) and IPBC 0.3%(1.3% positive reactions) for further detailed analyses. An evaluation of the related parameters revealed that with IPBC 0.2% as compared to IPBC 0.3% a higher percentage of crescendo reactions, a higher reaction index, a lower number of doubtful reactions, a plausible association of positive reactions with reactions to other preservatives, nd no association with a pronounced skin irritability was found. In conclusion, we recommend to start with IPBC 0.2% for patch testing of all persons with contact dermatitis that may be related to preservatives. [source]

Simultaneous sodium lauryl sulphate testing improves the diagnostic validity of allergic patch tests.

BRITISH JOURNAL OF DERMATOLOGY, Issue 4 2005
Results from a prospective multicentre study of the German Contact Dermatitis Research Group (Deutsche Kontaktallergie-Gruppe
Summary Background, There is evidence that a higher skin susceptibility may induce nonspecific erythematous or weak positive reactions to contact allergens in patch testing. Objectives, To evaluate whether simultaneous application of sodium lauryl sulphate (SLS) along with diagnostic patch tests with contact allergens can provide information regarding skin irritability which may help to discriminate allergic from nonspecific irritant reactions to contact allergens. Methods, Between July 2001 and June 2003, this prospective study collected patch test data of 5971 patients from 19 centres in Germany and Austria in the Information Network of Departments of Dermatology (IVDK). In addition to contact allergens (standard series and eight known ,problematic' allergens with a low reaction index and a high positivity ratio: 1,3-diphenylguanidine, amerchol L-101, benzalkonium chloride, benzoyl peroxide, cocamidopropyl betaine, octyl gallate, phenyl mercuric acetate and propylene glycol), patches with SLS 0·5% and 0·25% aq. were applied. Reactions to the allergens and to SLS were analysed at the IVDK data centre. The association between an erythematous or positive reaction to a certain allergen and an irritant reaction to SLS was assessed with logistic regression analysis, at the same time controlling for the influence of age and sex. Results, Of the 29 allergens of the standard series, 23 and 21 gave a higher percentage of nonspecific erythematous reactions in patients with an irritant reaction to 0·25% and 0·5% SLS, respectively, in comparison with SLS-negative patients. All eight ,problematic' allergens gave an increased percentage of nonspecific erythematous reactions. Similarly, 22 and 21 allergens of the standard series gave a higher percentage of positive allergic reactions in patients with an irritant reaction to 0·25% and 0·5% SLS, respectively, and seven of the eight ,problematic' allergens gave a higher percentage of positive allergic rections (exception: octyl gallate). For most allergens, the markers of skin reaction (reaction index and positivity ratio) were worse in SLS-positive patients. Differences were more pronounced when testing with SLS 0·25% than with SLS 0·5%. Conclusions, Because there is a convincing association between skin irritability (evaluated by SLS test) and the degree of skin reaction to contact allergens, the SLS test may help in deciding whether a doubtful erythematous or weakly ,positive' skin reaction should be interpreted as allergic or irritant. [source]