Our methods for studies of cancer survivorship and development of study-specific questionnaires have been documented in >80 scientific papers (Bergmark et al, 1999 (link); Steineck et al, 2006 (link)). A description of the development and validation of the present questionnaire has previously been reported (Dunberger et al, 2010 (link)). In summary, the questionnaire was developed during an 18 months long qualitative phase including semi-structured interviews with 26 gynaecological cancer survivors previously treated with pelvic radiation therapy. A study-specific questionnaire was constructed consisting of 351 questions covering symptoms from the gastrointestinal tract, urinary bladder, genitals, pelvic bones, abdomen and legs. Questions concerning demographics, sexual function, intercurrent diseases, psychological and quality-of-life issues were included. In each part of the questionnaire, we asked about the incidence, prevalence, intensity and duration of the symptoms and their impact on different aspects of social functioning.
Face-to-face validation of the final version was made to ensure that it was conceivable and had satisfactory internal consistency. Participation rate and rate of missing values were tested in a pilot study. The main study, the quantitative phase, was carried out during January–October 2006. Eligible women who gave informed consent received a postal questionnaire. Confidentiality was maintained by numbering the questionnaires.
Face-to-face validation of the final version was made to ensure that it was conceivable and had satisfactory internal consistency. Participation rate and rate of missing values were tested in a pilot study. The main study, the quantitative phase, was carried out during January–October 2006. Eligible women who gave informed consent received a postal questionnaire. Confidentiality was maintained by numbering the questionnaires.
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