Baade P.D.,Viertel Center for Research in Cancer Control |
Youlden D.R.,Queensland University of Technology |
Chambers S.K.,Griffith University
Medical Journal of Australia | Year: 2011
Objective: To report the latest conditional survival estimates for patients with cancer in Queensland, Australia. Design, setting and participants: Descriptive study of state-wide population-based data from the Queensland Cancer Registry on patients aged 15-89 years who were diagnosed with invasive cancer between 1982 and 2007. Main outcome measure: Conditional 5-year relative survival for the 13 most common types of invasive cancer, and all cancers combined. Results: The prognosis for patients with cancer generally improves with each additional year that they survive. A significant excess in mortality compared with the general population ceases to occur within 10 years after diagnosis for survivors of stomach, colorectal, cervical and thyroid cancer and melanoma, with these groups having a conditional 5-year relative survival of at least 95% after 10 years. For the remaining cancers we studied (pancreatic, lung, breast, prostate, kidney, and bladder cancer, non-Hodgkin lymphoma, and leukaemia), conditional 5-year relative survival estimates (at 10 years after diagnosis) ranged from 82% to 94%, suggesting that patients in these cohorts continue to have poorer survival compared with the age-matched general population. Conclusions: Estimates of conditional survival have the potential to provide useful information for cancer clinicians, patients and their carers as they are confronted by personal and surveillance-related decisions. This knowledge may be effective in building realistic hope and helping people manage uncertainty about the future. We suggest that measures of conditional survival be incorporated into routine statistical reporting in Australia.
Royle J.A.,University of Western Australia |
Baade P.D.,Viertel Center for Research in Cancer Control |
Baade P.D.,Queensland University of Technology |
Joske D.,Sir Charles Gairdner Hospital |
And 2 more authors.
British Journal of Cancer | Year: 2011
Background: Patients with chronic lymphocytic leukaemia (CLL) are known to have increased risks of second cancer. The incidence of second cancers after CLL has not been reported in detail for Australia, a country with particularly high levels of ultraviolet radiation (UVR). Methods: The study cohort comprised of all people diagnosed with a primary CLL between 1983 and 2005 in Australia. Standardised incidence ratios (SIRs) and standardised mortality ratios (SMRs) were calculated using Australian population rates. Results: Overall, the risk of any second incident cancer was more than double that of the general population (SIR2.17, 95% confidence interval (CI)=2.07, 2.27) and remained elevated for at least 9 years after CLL. Risks were increased for many cancers, particularly melanoma (SIR7.74, 95% CI=6.85, 8.72). The risk of melanoma increased at younger ages, but was constant across 9 years of follow-up. Chronic lymphocytic leukaemia patients also had an increased risk of death because of melanoma (SMR4.79, 95% CI=3.83, 5.90) and non-melanoma skin cancer (NMSC; SMR17.0, 95% CI=14.4, 19.8), suggesting that these skin cancers may be more aggressive in CLL patients. Conclusion: We speculate that a shared risk factor, such as general immune suppression, modulated by UVR exposure may explain the increased risk of melanoma and NMSC in CLL patients. © 2011 Cancer Research UK All rights reserved.
Morris B.A.,University of Tasmania |
Morris B.A.,Viertel Center for Research in Cancer Control |
Morris B.A.,Griffith University |
Shakespeare-Finch J.,Queensland University of Technology
Psycho-Oncology | Year: 2011
Objective: Theoretical models of post-traumatic growth (PTG) have been derived in the general trauma literature to describe the post-trauma experience that facilitates the perception of positive life changes. To develop a statistical model identifying factors that are associated with PTG, structural equation modelling (SEM) was used in the current study to assess the relationships between perception of diagnosis severity, rumination, social support, distress, and PTG. Method: A statistical model of PTG was tested in a sample of participants diagnosed with a variety of cancers (N=313). Results: An initial principal components analysis of the measure used to assess rumination revealed three components: intrusive rumination, deliberate rumination of benefits, and life purpose rumination. SEM results indicated that the model fit the data well and that 30% of the variance in PTG was explained by the variables. Trauma severity was directly related to distress, but not to PTG. Deliberately ruminating on benefits and social support were directly related to PTG. Life purpose rumination and intrusive rumination were associated with distress. Conclusions: The model showed that in addition to having unique correlating factors, distress was not related to PTG, thereby providing support for the notion that these are discrete constructs in the post-diagnosis experience. The statistical model provides support that post-diagnosis experience is simultaneously shaped by positive and negative life changes and that one or the other outcome may be prevalent or may occur concurrently. As such, an implication for practice is the need for supportive care that is holistic in nature. © 2010 John Wiley & Sons, Ltd.
Cramb S.M.,Viertel Center for Research in Cancer Control
Health & place | Year: 2012
This study examines the influence of cancer stage, distance to treatment facilities and area disadvantage on breast and colorectal cancer spatial survival inequalities. We also estimate the number of premature deaths after adjusting for cancer stage to quantify the impact of spatial survival inequalities. Population-based descriptive study of residents aged <90 years in Queensland, Australia diagnosed with primary invasive breast (25,202 females) or colorectal (14,690 males, 11,700 females) cancers during 1996-2007. Bayesian hierarchical models explored relative survival inequalities across 478 regions. Cancer stage and disadvantage explained the spatial inequalities in breast cancer survival, however spatial inequalities in colorectal cancer survival persisted after adjustment. Of the 6,019 colorectal cancer deaths within 5 years of diagnosis, 470 (8%) were associated with spatial inequalities in non-diagnostic factors, i.e. factors beyond cancer stage at diagnosis. For breast cancers, of 2,412 deaths, 170 (7%) were related to spatial inequalities in non-diagnostic factors. Quantifying premature deaths can increase incentive for action to reduce these spatial inequalities. Copyright © 2012 Elsevier Ltd. All rights reserved.
Ownsworth T.,Griffith University |
Henderson L.,Griffith University |
Chambers S.K.,Griffith University |
Chambers S.K.,Viertel Center for Research in Cancer Control
Psycho-Oncology | Year: 2010
Objective: This study investigated the association between functional impairments of individuals with cancer and caregiver psychological well-being, and examined the moderating effect of social support. Methods: Sixty-three caregivers (71% female) of individuals with brain tumor (n=27) and other cancers (n=36) were recruited from community services. Caregivers rated their psychological well-being on the World Health Organisation Quality of Life measure Brief version, social support on a brief version of the Social Support Questionnaire, and the individuals' functional impairments on the Patient Competency Rating Scale. Results: For caregivers of individuals with brain tumor, better psychological well-being was associated with lower functional impairment in all domains (rs=0.33-38, p<0.05), except for cognitive difficulties. For caregivers of individuals with other cancers, better psychological well-being was associated with lower functional impairment in all domains (rs=0.30-0.49, p<0.05), with the exception of activities of daily living. For the total caregiver sample, better psychological well-being was significantly correlated with overall functional impairment (r=0.34, p<0.005) and satisfaction with support (r=0.40, p<0.005). Caregivers supporting individuals with greater functional impairment had better psychological well-being if they were highly satisfied with their social support. Conclusions: Effective social support is particularly important for caregivers who support individuals with poorer functional status, and this study highlights the need to evaluate caregiver social support interventions in the context of cancer. © 2009 John Wiley & Sons, Ltd.