1,720,971 research outputs found
Prevalence, patterns and predictors of mood disorders in early breast cancer: results from 2208 women in the UK Standardisation of Breast Radiotherapy Trial (START)
No full textAge, clinical and psychological associations with fatigue following radiotherapy for early breast cancer – results from 2208 women in the UK Standardisation of Breast Radiotherapy Trials (START)
No full textThe impact of age and clinical factors on quality of life in early breast cancer: an analysis of 2208 women recruited to the UK START Trial (Standardisation of Breast Radiotherapy) Trial
No full textQuality of life (QOL) assessments of women entering a UK randomised trial of adjuvant radiotherapy (START) were investigated to estimate the independent effects on QOL of age, time since surgery, type of breast surgery, chemotherapy and endocrine therapy. QOL was evaluated using the EORTC general cancer QOL scale (EORTC QLQ-C30), breast cancer module (BR23), the Body Image Scale (BIS) and the Hospital Anxiety and Depression Scale (HADS). Independent effects of age and clinical factors were tested using multiple regression analysis. A total of 2208 (mean age 56.9 years, range 26-87) consented to the QOL study prior to radiotherapy; 17.1% had undergone mastectomy (Mx) and the remainder had undergone a wide local excision (WLE). 33.3% had received adjuvant chemotherapy (CT) and 56.7% were taking endocrine therapy (ET). Age had significant effects on QOL with older and younger subgroups predicting poorer QOL for different domains. CT affected most QOL domains and resulted in worse body image, sexual functioning, breast and arm symptoms (<0.001). Mx was associated with greater body image concerns (p<0.001), and WLE with more arm symptoms (p=0.01). There were no effects of ET on QOL. Women <50 years (proxy pre-menopausal) had worse QOL in respect of anxiety, body image and breast symptoms but age and clinical factors had no effect on depression. Overall, QOL and mental health were favourable for most women about to start RT, but younger age and receiving CT were significant risk factors for poorer QOL, and so patients in these subgroups warrant further monitoring. Surgery had a limited impact and ET had no effect on QO
The course of anxiety and depression over 5 years of follow-up and risk factors in women with early breast cancer: results of the UK Standardisation of Radiotherapy Trials (START)
No full textProspective data are limited on the course of anxiety and depression and their determinants in women with early breast cancer. These parameters were assessed before adjuvant radiotherapy (RT) and over 5 years follow-up.Of 2208 women recruited to the START QOL study, 35% reported clinically relevant levels of anxiety and/or depression pre-RT; there was no significant change in these proportions over time. However, 75% women with high baseline anxiety recorded further high scores over time whilst one in six had high scores at every follow-up point. Depression showed a similar pattern with lower frequencies at all time points; very few with initial normal scores developed clinically relevant anxiety or depression over time. Lower educational level predicted worse anxiety and depression over time; younger age predicted worse anxiety and chemotherapy predicted worse depression. Scores in the borderline or case range for anxiety or depression at baseline were both significantly associated with worse mood states over 5 years.These findings indicate the course of anxiety and depression in women with specific risk factors. This subgroup of patients requires greater clinical attentio
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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