| 1. |
- Berglund, Anders, et al.
(författare)
-
Differences according to socioeconomic status in the management and mortality in men with high risk prostate cancer
- 2012
-
Ingår i: European Journal of Cancer. - : Elsevier BV. - 0959-8049 .- 1879-0852. ; 48:1, s. 75-84
-
Tidskriftsartikel (refereegranskat)abstract
- Background: Outcomes for many cancer forms are associated with socioeconomic status (SES).We investigated if SES was associated with management and mortality in men with high risk prostate cancer.Material and methods: A nation-wide population-based cohort in Prostate Cancer Data Base Sweden (PCBaSe), a merged database including data on incident prostate cancer identified in the National Prostate Cancer Register (NPCR) between 1997 and 2006. High risk PCa was defined as T3 tumour, and/or Gleason score 8–10 and/or PSA 20–50 ng/mL. Use of bone scan, curative treatment, and mortality in relation to SES was assessed by logistic, Cox, and competing risk regression with hazard ratios (HR), sub-distributed HR and 95% confidence intervals (CI) adjusted for co-morbidity, age, calendar period and clinical subgroups.Results: Amongst 17,522 high risk prostate cancer patients, a bone scan was more often performed in higher white-collar than in blue-collar workers (OR 1.30; 95% CI 1.21–1.40). Amongst men without metastases, the likelihood of intention to treat was higher in higher white-collar workers (OR 1.43; 95% CI 1.28–1.57). In men who received curative treatment, the likelihood was higher to undergo radical prostatectomy for higher white-collar patients (OR 1.29; 95% CI 1.10–1.47). In men without metastases, not only overall mortality was lower amongst higher white-collar workers (HR, 0.76; 95% CI 0.60–0.97), but also prostate cancer-specific mortality (sHR 0.70; 95% CI, 0.49–0.99).Conclusions: We conclude that socioeconomic disparities in the management and mortality in men with high risk prostate cancer exist also within the setting of a National Health Care System aiming to provide care on equal terms to all residents.
|
|
| 2. |
- Bill-Axelson, Anna, et al.
(författare)
-
Psychiatric treatment in men with prostate cancer - Results from a Nation-wide, population-based cohort study from PCBaSe Sweden
- 2011
-
Ingår i: European Journal of Cancer. - Oxford : Elsevier BV. - 1879-0852 .- 0959-8049. ; 47:14, s. 2195-2201
-
Tidskriftsartikel (refereegranskat)abstract
- Aim: To explore whether the self-reported psychological distress among men with prostate cancer was to the extent that it required psychiatric treatment. Methods: PCBaSe Sweden, a merged database based on the National Prostate Cancer Register including 97% of all prostate cancers registered as well as age-matched controls. We calculated relative risks and 95% confidence intervals to compare risks of psychiatric treatment due to depression, anxiety, and post-traumatic stress disorder controlling for age and socio-economic factors. We used odds ratios to compare use or no use of antidepressants. Findings: In total 72,613 men with prostate cancer and 217,839 men without prostate cancer were included for analyses. Psychiatric hospitalisation due to depression, anxiety and post-traumatic stress disorder were significantly increased (RR 1.29, (95% CI 1.14-1.45), RR 1.42 (95% CI 1.12-1.80) and RR 1.61 (95% CI 1.16-2.24), respectively). However, hospitalisations due to anxiety were only increased in men with more advanced tumours RR 2.28 (95% CI 1.45-3.57). The use of antidepressants was increased for all men with prostate cancer RR 1.65 (95% CI 1.54-1.77) and treatment strategies RR 1.93 (95% CI 1.75-2.13). Interpretation: Men diagnosed with prostate cancer had increased risk of psychiatric treatment for depression, post-traumatic stress disorder and use of antidepressants regardless of risk group and treatment strategy compared to age-matched controls, whilst more advanced prostate cancer was associated with severe anxiety disorders. (C) 2011 Elsevier Ltd. All rights reserved.
|
|
| 3. |
- Lindhagen, Lars, et al.
(författare)
-
How to model temporal changes in comorbidity for cancer patients using prospective cohort data
- 2015
-
Ingår i: BMC Medical Informatics and Decision Making. - : Springer Science and Business Media LLC. - 1472-6947. ; 51, s. S148-S148
-
Tidskriftsartikel (refereegranskat)abstract
- Background: The presence of comorbid conditions is strongly related to survival and also affects treatment choices in cancer patients. This comorbidity is often quantified by the Charlson Comorbidity Index (CCI) using specific weights (1, 2, 3, or 6) for different comorbidities. It has been shown that the CCI increases at different times and with different sizes, so that traditional time to event analysis is not adequate to assess these temporal changes. Here, we present a method to model temporal changes in CCI in cancer patients using data from PCBaSe Sweden, a nation-wide population-based prospective cohort of men diagnosed with prostate cancer. Our proposed model is based on the assumption that a change in comorbidity, as quantified by the CCI, is an irreversible one-way process, i.e., CCI accumulates over time and cannot decrease. Methods: CCI was calculated based on 17 disease categories, which were defined using ICD-codes for discharge diagnoses in the National Patient Register. A state transition model in discrete time steps (i.e., four weeks) was applied to capture all changes in CCI. The transition probabilities were estimated from three modelling steps: 1) Logistic regression model for vital status, 2) Logistic regression model to define any changes in CCI, and 3) Poisson regression model to determine the size of CCI change, with an additional logistic regression model for CCI changes >= 6. The four models combined yielded parameter estimates to calculate changes in CCI with their confidence intervals. Results: These methods were applied to men with low-risk prostate cancer who received active surveillance (AS), radical prostatectomy (RP), or curative radiotherapy (RT) as primary treatment. There were large differences in CCI changes according to treatment. Conclusions: Our method to model temporal changes in CCI efficiently captures changes in comorbidity over time with a small number of regression analyses to perform - which would be impossible with tradition time to event analyses. However, our approach involves a simulation step that is not yet included in standard statistical software packages. In our prostate cancer example we showed that there are large differences in development of comorbidities among men receiving different treatments for prostate cancer.
|
|
| 4. |
- Lycken, Magdalena, et al.
(författare)
-
Patterns of androgen deprivation therapies among men diagnosed with localised prostate cancer : A population-based study
- 2014
-
Ingår i: European Journal of Cancer. - : Elsevier BV. - 0959-8049 .- 1879-0852. ; 50:10, s. 1789-1798
-
Tidskriftsartikel (refereegranskat)abstract
- Aim: Many men diagnosed with localised prostate cancer will eventually be treated with androgen deprivation therapy (ADT). ADT is associated with adverse effects and its timing is controversial. Data on patterns of use are scarce. We describe patterns of ADT use, defined as castration (medical and surgical) or antiandrogen monotherapy initiated after primary treatment, in a population-based cohort. Methods and materials: Data were extracted from the population-based Prostate Cancer data Base Sweden (PCBaSe). Totally 45,147 men diagnosed between 1997 and 2009 with clinical stage T1-2, N0-NX, M0-MX and prostate specific antigen (PSA) <50 ng/ml without primary ADT were included. Outcomes in the period 2006 through 2010 were analysed using a period analysis approach. Results: The cumulative incidence of castration at 10 years after diagnosis was 11.6% (95% confidence interval (CI), 11.0-12.2%). The corresponding proportion of antiandrogen monotherapy was 10.8% (95% CI, 10.2-11.4%). Castration was the dominant therapy among men on deferred treatment. The probability of receiving castration rather than antiandrogen monotherapy increased with age. Estimated median durations of castration ranged from 4 years in the deferred treatment high-risk group to 17 years in the prostatectomy low-risk group. The main limitation was the lack of information on progression to metastatic disease and PSA at the time for initiation of ADT. Conclusion: When initiated early after curative treatment, the duration of castration can be decades. The findings indicate that more accurate tools are necessary to guide which men should be selected for ADT as secondary treatment.
|
|
| 5. |
- Moller, Henrik, et al.
(författare)
-
Recent childbirth is an adverse prognostic factor in breast cancer and melanoma, but not in Hodgkin lymphoma
- 2013
-
Ingår i: European Journal of Cancer. - : Elsevier BV. - 0959-8049 .- 1879-0852. ; 49:17, s. 3686-3693
-
Tidskriftsartikel (refereegranskat)abstract
- Background: The relationship between gestation, childbirth and cancer prognosis is unknown for most cancers (e. g. Hodgkin lymphoma), whereas a body of evidence exists for melanoma and breast cancer. Methods: The national cancer registration and hospital discharge data for women in England (1998-2007) were linked, and the records for Hodgkin lymphoma, melanoma and breast cancer were indexed as to whether women had delivered a child in separate time periods prior to their cancer diagnosis. Survival analyses were conducted in order to characterise prognosis in relation to childbirth, with statistical adjustment for age and (where possible) stage. Findings: For melanoma and breast cancer, survival was strongly reduced in women who gave birth in the year prior to cancer diagnosis. The age-adjusted hazard ratios (HR) with 95% confidence intervals (CI) were 2.06 (1.42-3.01) for melanoma and 1.84 (1.64-2.06) for breast cancer. The associations were only slightly attenuated by further adjustment for tumour stage. For breast cancer, the excess death rate in women with a recent childbirth peaked at 2 years and remained elevated for 6 to 8 years. Previous childbirth had no overall effect on the outcome of Hodgkin lymphoma. Interpretation: Melanoma and breast cancer prognosis are adversely affected by recent gestation and childbirth in a way that is not due to stage of the cancer, but rather to inherent biological properties of the tumours. Possible biological mechanisms include immunosuppression (melanoma), the hormonal milieu in gestation and a tumour promoting microenvironment post-partum (breast cancer).
|
|
| 6. |
- Nilsson, Greger, et al.
(författare)
-
Increased incidence of stroke in women with breast cancer
- 2005
-
Ingår i: European Journal of Cancer. - : Elsevier BV. - 0959-8049 .- 1879-0852. ; 41:3, s. 423-429
-
Tidskriftsartikel (refereegranskat)abstract
- Meta-analyses have shown an excess of vascular deaths in women with breast cancer given radiotherapy (RT). In women with breast cancer, RT to the supraclavicular lymph nodes gives a substantial radiation dose to the proximal carotid artery. RT is known to increase the risk of carotid stenosis and ischaemic stroke in head and neck cancer. A study base of 25,171 women with breast cancer was defined. A linkage between the study base and the Hospital Discharge Register yielded 1766 women who were diagnosed with a stroke after a breast cancer. The observed number of strokes was compared with the expected number in the background population. The Relative Risk (RR) of stroke in the study group with breast cancer was 1.12 (95% Confidence Interval (CI)=1.07-1.17). The increased risk was confined to the subtype cerebral infarction, RR=1.12 (95% CI=1.05-1.19). A statistically significant increase in the risk of stroke was seen among women with a history of breast cancer. Whether this risk is associated with the breast cancer disease per se or related to any treatment requires further study.
|
|
| 7. |
- van Hemelrijck, Mieke, et al.
(författare)
-
Gamma-glutamyltransferase and risk of cancer in a cohort of 545,460 persons : the Swedish AMORIS study
- 2011
-
Ingår i: European Journal of Cancer. - : Elsevier BV. - 0959-8049 .- 1879-0852. ; 47:13, s. 2033-2041
-
Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND:Apart from using gamma-glutamyltransferase (GGT) as a predictor of diabetes, cardiovascular and chronic kidney disease, some evidence suggests GGT as an indicator of cancer risk. We aimed to study the association between GGT and cancer in a large Swedish cohort with 37,809 primary cancers.METHODS:In a cohort of 545,460 persons (aged >20 years) who had a measurement of GGT in the Apolipoprotein Mortality Risk (AMORIS) study, multivariate Cox proportional hazards regression was used to investigate categories of GGT (<18, 18-36,36-72, ≥72 U/L) in relation to cancer risk. Stratified analyses were conducted by gender, levels of alanine aminotransferase (ALT) (RESULTS:A positive association was found between categories of GGT and overall cancer risk (HR: 1.07 (95%CI: 1.04-1.09,), 1.18 (1.14-1.22), 1.32 (1.26-1.38) for the 2nd, 3rd and 4th categories compared to the 1st). Stratified analyses showed that for those with glucose ≥6.11 mmol/L, the association between GGT and risk of prostate, breast and liver cancer became stronger (e.g. HR for GGT ≥72 U/L and prostate cancer: 1.11 (0.98-1.26) and 1.35 (1.00-1.81) for glucose <6.11 and ≥6.11 mmol/L, respectively). With pancreatic cancer, the association with GGT was weaker for those with elevated glucose levels compared to those with normal levels. No effects of ALT or triglyceride levels on risk were found.CONCLUSION:We found evidence of associations between elevated GGT and risk of developing different cancers. The strength of this association may vary by glucose levels because hyperglycaemia can result in oxidative stress initiating damaging pathways of carcinogenesis.
|
|
| 8. |
|
|
| 9. |
- Zar, Niklas, et al.
(författare)
-
Risk of second primary malignancies and causes of death in patients with adenocarcinoma and carcinoid of the small intestine
- 2008
-
Ingår i: European Journal of Cancer. - : Elsevier BV. - 0959-8049 .- 1879-0852. ; 44:5, s. 718-25
-
Tidskriftsartikel (refereegranskat)abstract
- We studied risk of second malignancies and causes of death in 1829 cases of adenocarcinoma and 3055 cases of carcinoid tumours in the small bowel reported to the Swedish Cancer Registry from 1960 through to 2000. Data on causes of death were analysed as from 1966 whereas data on second tumours was available during the whole registry-period. Follow-up was available until 2001. Standard mortality ratio (SMR) and standard incidence ratio (SIR) were calculated. Female patients with adenocarcinoma had increased risk of acquiring cancer in the female genital organs (SIR 3.2; 95% confidence intervals (CI) 1.9–5.0) and breasts (SIR 2.7; 95% CI 1.1–5.4). Both sexes combined had increased risk of second tumours in the gastrointestinal tract (SIR 1.5; 95% CI 1.1–2.1) and skin (SIR 4.6; 95% CI 1.2–12). Men with carcinoid tumour had increased risk of prostate cancer (SIR 2.8; 95% CI 1.6–4.6). Increased risk was seen for both sexes with carcinoid for malignant melanoma (SIR 6.3; 95% CI 2.7–12), malignant skin tumours (SIR 3.6; 95% CI 1.7–6.7) and malignancies of endocrine organs (SIR 2.3 95% CI 1.3–3.8). Patients with adenocarcinoma had increased risk of dying from malignant diseases other than the primary cancer (SMR 9.5; 95% CI 8.6–10) and gastrointestinal disease (SMR 2.6 95% CI 1.6–4.2). The cohort with carcinoid had higher than expected risk of dying from malignant disease (SMR 4.3; 95% CI 4.0–4.6), gastrointestinal disease (SMR 2.8; 95% CI 2.1–3.6) and cardiovascular disease (SMR 1.1; 95% CI 1.0–1.3). The increased risk of second malignant tumours is an indication of common aetiology, or possibly, a general vulnerability to malignant disease for these patients. A detailed analysis of causes of death in a population-based cohort of small intestinal malignancies has not been presented before in the literature.
|
|
