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Ridner SH, Dietrich MS, et al.
Supportive care in cancer : official journal of the Multinational Association of Supportive Car.... Date of publication 2015 Oct 1;volume 23(10):3103-12.
1. Support Care Cancer. 2015 Oct;23(10):3103-12. doi: 10.1007/s00520-015-2684-y. Epub 2015 Mar 10. Development and validation of the Lymphedema Symptom and Intensity Survey-Arm. Ridner SH(1), Dietrich MS. Author information: (1)Vanderbilt University School of Nursing, 461 21st Avenue South, Godchaux Hall, Nashville, TN, 37240, USA, sheila.ridner@vanderbilt.edu. PURPOSE: The purpose of this instrument development project was to create a self-report tool to evaluate arm lymphedema and associated symptoms in breast cancer survivors. METHODS: The Lymphedema Symptom Intensity and Distress Survey-Arm (LSIDS-A) was developed and tested in three phases: phase 1-literature review and expert panel; phase 2-preliminary validation; and phase 3-final validation. RESULTS: Phase 1: The most common symptoms experienced by breast cancer survivors with lymphedema were identified. A 52-item scale was developed. Phase 2: 128 community-dwelling breast cancer survivors (64 with lymphedema, 64 without lymphedema) completed the LSIDS-A. Feedback from the participants was that the format was "clear" and "made sense"; therefore, the response structure was left intact. Sixteen items were deleted leaving a 36-item revised instrument. Phase 3: Subsequent testing in a total sample of 236 breast cancer survivors with lymphedema was undertaken. The Cronbach's alpha reliability values for the overall intensity and distress scores were 0.93 and 0.94, respectively. The Kuder-Richardson values ranged from 0.66 to 0.92. Divergent validity evaluated against Marlowe-Crowne Social Desirebility Scale overall was acceptable (intensity, r s = 0.08; distress, r s  = -0.12). Convergent validity was acceptable as tested with multiple instruments (e.g., Functional Assessment of Cancer Therapy-Breast +4, overall intensity r s   = -0.44, overall distress r s   = -.48) CONCLUSIONS: The 30-item LSIDS-A is a valid and reliable instrument that can be used to assess arm lymphedema and its associated symptoms. DOI: 10.1007/s00520-015-2684-y PMCID: PMC4554806 PMID: 25752884 [Indexed for MEDLINE]
Appears in following Topics:
Lymphedema - Introduction and Assessment