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Title: Realising the potential : developing qualitative longitudinal methods for understanding the experience of metastatic colorectal cancer
Author: Carduff, Emma Kathryn
ISNI:       0000 0004 2748 3495
Awarding Body: University of Edinburgh
Current Institution: University of Edinburgh
Date of Award: 2013
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Background Qualitative longitudinal research (QLR) has a long history in the social sciences, where its theoretical basis is well established. Qualitative longitudinal (QL) methods are gaining popularity in health care research for exploring the dynamic experience of illness. However, methodological development of QLR is limited within the health literature, and there are very few studies examining the experience of people with colorectal cancer (CRC). Moreover, such studies describe the experiences of those surviving CRC and the voices of those with advanced disease who are approaching the end of their lives remain largely unheard. Aim and objective This study explores the potential of QL interviewing to examine the experiences of those with advanced, metastatic, CRC. I investigate how QL interviews can be best utilised to explore the participants’ accounts of their experiences. I specifically examine the added value and costs of a flexible approach with regard to the frequency and timing of longitudinal interviews. Analytical approaches to QL data are examined to determine their overall value. Methods Sixteen patients with metastatic CRC and eight of their family carers participated in narrative interviews at three time points over the course of a year. The study was designed to include two groups of participants. The first, a routine interval group where interviews were carried out at regular intervals of six months; the second, a flexible interval group where there was an interview at baseline followed by monthly phone calls to track changes in the participants’ circumstances, with a view to conducting the interview as change was occurring. The data were analysed at each time point, and longitudinally using narrative and thematic techniques. Findings The QL design enabled a trusting relationship to evolve, such that private accounts of experience were disclosed. Thus, a nuanced and contextualised understanding of the experience of metastatic CRC materialised. Overall the accounts of CRC were characterised by uncertainty, yet at the same time death was a certainty. Over time, this dual narrative led to participants feeling themselves to be in an ambiguous and liminal state. Some participants described a loss of sense of self, yet others maintained their identity. The work that participants carried out to manage their sense of self changed, as they moved from a collective to an individual identity. In the flexible interval group, monthly telephone calls produced an even more profound research relationship and further enriched the accounts. However, early interviews were only conducted on two occasions and more ethical issues arose as a result of the increased contact. Conclusions By exploring the potential of QL methods, this study has developed the methodology for researching the experiences of those with serious illness. QL interviewing elicits a deep understanding of metastatic CRC that appreciates notions of temporality, process and change. Regular contact with participants between interviews can further enrich the accounts, and is a useful strategy for tracking changes given the unpredictable nature of advanced disease. This thesis showcases the cross-sectional and longitudinal opportunities that QL analysis presents; yet also highlights how longitudinal narrative analysis allows a story to unfold over time which reflects the beginning, the middle and for some the end of the illness experience. Although QL analysis is time consuming, and more contact can amplify ethical issues, the benefits outweigh the constraints.
Supervisor: Kendall, Marilyn; Murray, Scott Sponsor: Economic and Social Research Council (ESRC)
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: Qualitative longitudinal research ; cancer ; research methods