title: Self-efficacy, psychological adjustment and decisional-balance regarding decision making for outpatient chemotherapy in Japanese advanced lung cancer.
abstract: This study examined the application of the trans-theoretical model (TTM) for readiness for decision-making of outpatient chemotherapy of Japanese advanced lung cancer patients by a cross sectional questionnaire survey. A questionnaire was conducted with 105 Japanese patients diagnosed with advanced lung cancer receiving chemotherapy. We classified them according to the TTM stages, including 4 in precontemplation, 42 in contemplation, 22 in preparation, and 35 in action. The valid model (chi(2) (37) = 42.56, p = 0.24; GFI = 0.93; AGFI = 0.88; CFI = 0.98; RMSEA = 0.04; AIC = 100.56) derived from structural equation modeling (SEM) revealed that stage of outpatient chemotherapy was significantly affected mostly by decisional-balance (beta = 0.60, p < 0.001) and partially by time from the patient's house to the hospital (beta = -0.15, p < 0.10), and that decisional-balance was significantly affected by self-efficacy (beta = 0.48, p < 0.001) and nausea (beta = -0.23, p < 0.01). The findings from our study provided encouraging results for adopting the TTM in decision making for outpatient chemotherapy in Japanese cancer care and several clinical implications were obtained from the results.
authors.affiliation: Center for the Study of Communication Design, Department of Psychology and Behavioral Sciences in Graduate School of Human Sciences, Osaka University, Japan. khirai@grappo.jp
authors.forename: Kei
authors.initials: K
authors.lastname: Hirai
authors.forename: Hirokazu
authors.initials: H
authors.lastname: Arai
authors.forename: Akihiro
authors.initials: A
authors.lastname: Tokoro
authors.forename: Nobuyuki
authors.initials: N
authors.lastname: Naka
mesh_terms: D000223:Adaptation, Psychological; D000368:Aged; D000553:Ambulatory Care; D003657:Decision Making; D005260:Female; D006801:Humans; D007564:Japan; D008175:Lung Neoplasms / Q000188:drug therapy / Q000523:psychology*; D008297:Male; D008875:Middle Aged; D008962:Models, Theoretical; D009367:Neoplasm Staging; D020377:Self Efficacy; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires