Kelly M Shaffer1,2, Allison J Applebaum1, Katherine N DuHamel1, Sheila N Garland3, Philip Gehrman4, Jun J Mao5. 1. Department of Psychiatry and Behavioral Sciences, Memorial Sloan Kettering Cancer Center, New York, NY, USA. 2. Department of Psychiatry and Neurobehavioral Sciences, University of Virginia, Charlottesville, VA, USA. 3. Departments of Psychology and Oncology, Memorial University, St. John's, NL, Canada. 4. Department of Psychiatry, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA. 5. Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
Abstract
Objectives: Insomnia is common among cancer survivors, yet survivors' beliefs about their insomnia following cancer are largely unknown. This study describes cancer survivors' causal attributions of insomnia and whether these beliefs differ by sociodemographic characteristics. Participants: 160 cancer survivors meeting diagnostic criteria for insomnia disorder. Methods: Survivors endorsed how likely they believed 12 different factors were causally related to their insomnia and self-reported sociodemographics. Multinomial logistic regression tested associations between attribution endorsement and sociodemographics. Latent class analysis (LCA) examined patterns of attribution endorsement and whether sociodemographics were associated. Results: One hundred fifty-four survivors (96%) endorsed that at least 1 causal attribution was likely related to their insomnia. Most survivors endorsed that emotions (77%), thinking patterns (76%), sleep-related emotions (65%), and sleep-related thoughts (57%) were related to their insomnia, similar to data previously published among healthy persons with insomnia. Younger participants were more likely to endorse that biochemical factors related to their insomnia (ps < .02); females were more likely to endorse that hormonal factors related to their insomnia (ps < .001). LCA identified three classes (AIC = 3209.50, BIC = 3485.13). Approximately 40% of survivors endorsed most of the causal attributions were likely related to their insomnia; 13% frequently endorsed attributions were neither likely nor unlikely to be related. Older survivors were more likely to belong to the 47% who reported most attributions were unlikely related to their insomnia (p = .03). Conclusions: Cancer survivors with insomnia commonly endorsed that thoughts and emotions contributed to their sleep disturbance. Survivors' sociodemographic characteristics did not meaningfully explain individual differences for most causal attribution beliefs.
Objectives:Insomnia is common among cancer survivors, yet survivors' beliefs about their insomnia following cancer are largely unknown. This study describes cancer survivors' causal attributions of insomnia and whether these beliefs differ by sociodemographic characteristics. Participants: 160 cancer survivors meeting diagnostic criteria for insomnia disorder. Methods: Survivors endorsed how likely they believed 12 different factors were causally related to their insomnia and self-reported sociodemographics. Multinomial logistic regression tested associations between attribution endorsement and sociodemographics. Latent class analysis (LCA) examined patterns of attribution endorsement and whether sociodemographics were associated. Results: One hundred fifty-four survivors (96%) endorsed that at least 1 causal attribution was likely related to their insomnia. Most survivors endorsed that emotions (77%), thinking patterns (76%), sleep-related emotions (65%), and sleep-related thoughts (57%) were related to their insomnia, similar to data previously published among healthy persons with insomnia. Younger participants were more likely to endorse that biochemical factors related to their insomnia (ps < .02); females were more likely to endorse that hormonal factors related to their insomnia (ps < .001). LCA identified three classes (AIC = 3209.50, BIC = 3485.13). Approximately 40% of survivors endorsed most of the causal attributions were likely related to their insomnia; 13% frequently endorsed attributions were neither likely nor unlikely to be related. Older survivors were more likely to belong to the 47% who reported most attributions were unlikely related to their insomnia (p = .03). Conclusions: Cancer survivors with insomnia commonly endorsed that thoughts and emotions contributed to their sleep disturbance. Survivors' sociodemographic characteristics did not meaningfully explain individual differences for most causal attribution beliefs.
Authors: Peter C Grayson; Naomi A Amudala; Carol A McAlear; Renée L Leduc; Denise Shereff; Rachel Richesson; Liana Fraenkel; Peter A Merkel Journal: J Rheumatol Date: 2014-03-15 Impact factor: 4.666
Authors: Jo Anne Dumalaon-Canaria; Amanda D Hutchinson; Ivanka Prichard; Carlene Wilson Journal: Cancer Causes Control Date: 2014-04-27 Impact factor: 2.506
Authors: Oxana G Palesh; Joseph A Roscoe; Karen M Mustian; Thomas Roth; Josée Savard; Sonia Ancoli-Israel; Charles Heckler; Jason Q Purnell; Michelle C Janelsins; Gary R Morrow Journal: J Clin Oncol Date: 2009-11-23 Impact factor: 44.544