Paper
Tuesday, November 6, 2007

668
This presentation is part of : Evidence-Based Practice Initiatives
The Effects of the Preparatory Sensory Information on Breast Conservative and Mastectomy Cancer Patients': Mood States and Self-Concept
Jorge L. Corchado, DNSc, MSN, CNS, RN, School of Nursing, University of Puerto Rico at Arecibo, Arecibo, PR, USA
Learning Objective #1: The learner will be able to differentiate between routine nursing care and evidence based practice through research findings in breast cancer patients.
Learning Objective #2: The learner will be able to apply a modern nursing intervention based in research findings.

This quasi-experimental pre and post-test control group design study had as its main purpose to determine if there was a difference in mood state and self-concept in Puerto Rican cancer patients undergoing lumpectomy or mastectomy who were given Preparatory Sensory Information in addition to routine nursing care as compared to those who received routine nursing care as the usual practice of the hospital. The hypothesis was: Cancer patients undergoing a lumpectomy or mastectomy who receive PSI in addition to routine nursing care and those who do not receive PSI will differ in mood state and self-concept. Sister Callista Roy’s Adaptation Model was used as the theoretical framework.
A non-probability convenience sample of women with breast cancer was recruited. The actual power of the t-test was .86. Subjects were assigned to the control and experimental group using systematic sampling. Inclusion criteria for the study were: Patients with breast cancer stage 0, I, II, or III; had no previous cancer diagnosis. The Derogatis Affects Balance Scale Spanish version was used to measure mood states (Cronbach’s alpha = .96). Self-concept was measured using the Adult Self-Perception Profile Spanish version (Cronbach’s alpha = .95).
The t-test indicated that treatment and control group means differed significantly on mood states scores (p = .026) indicating that subjects in the treatment group had more post-operative affect balance than the control group. The analyses indicated that for the mean score on the self-concept post-test measure, the treatment group scores were significantly higher (M = 171.90, SD = 1.57, at a p < .001 level) than the control group (M = 137.40, SD = 17.03). The treatment group scored higher on the post-test positive affects of mood states such as joy and contentment. The treatment group scored lower on post-test negative affects such as anxiety and depression.