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1.
Proc Natl Acad Sci U S A ; 119(9)2022 03 01.
Article in English | MEDLINE | ID: mdl-35193976

ABSTRACT

Human-induced salinization caused by the use of road deicing salts, agricultural practices, mining operations, and climate change is a major threat to the biodiversity and functioning of freshwater ecosystems. Yet, it is unclear if freshwater ecosystems are protected from salinization by current water quality guidelines. Leveraging an experimental network of land-based and in-lake mesocosms across North America and Europe, we tested how salinization-indicated as elevated chloride (Cl-) concentration-will affect lake food webs and if two of the lowest Cl- thresholds found globally are sufficient to protect these food webs. Our results indicated that salinization will cause substantial zooplankton mortality at the lowest Cl- thresholds established in Canada (120 mg Cl-/L) and the United States (230 mg Cl-/L) and throughout Europe where Cl- thresholds are generally higher. For instance, at 73% of our study sites, Cl- concentrations that caused a ≥50% reduction in cladoceran abundance were at or below Cl- thresholds in Canada, in the United States, and throughout Europe. Similar trends occurred for copepod and rotifer zooplankton. The loss of zooplankton triggered a cascading effect causing an increase in phytoplankton biomass at 47% of study sites. Such changes in lake food webs could alter nutrient cycling and water clarity and trigger declines in fish production. Current Cl- thresholds across North America and Europe clearly do not adequately protect lake food webs. Water quality guidelines should be developed where they do not exist, and there is an urgent need to reassess existing guidelines to protect lake ecosystems from human-induced salinization.


Subject(s)
Guidelines as Topic , Lakes , Salinity , Water Quality , Animals , Anthropogenic Effects , Ecosystem , Europe , North America , Zooplankton
2.
Int J Cancer ; 154(5): 873-885, 2024 Mar 01.
Article in English | MEDLINE | ID: mdl-37855394

ABSTRACT

Urinary prostaglandin (PG) E metabolite (PGE-M) and 11-dehydro (d)-thromboxane (TX) B2 are biomarkers of cyclooxygenase-dependent prostanoid synthesis. We investigated (1) the effect of aspirin 300 mg daily and eicosapentaenoic acid (EPA) 2000 mg daily, alone and in combination, on urinary biomarker levels and, (2) whether urinary biomarker levels predicted colorectal polyp risk, during participation in the seAFOod polyp prevention trial. Urinary PGE-M and 11-d-TXB2 were measured by liquid chromatography-tandem mass spectrometry. The relationship between urinary biomarker levels and colorectal polyp outcomes was investigated using negative binomial (polyp number) and logistic (% with one or more polyps) regression models. Despite wide temporal variability in PGE-M and 11-d-TXB2 levels within individuals, both aspirin and, to a lesser extent, EPA decreased levels of both biomarkers (74% [P ≤ .001] and 8% [P ≤ .05] reduction in median 11-d-TXB2 values, respectively). In the placebo group, a high (quartile [Q] 2-4) baseline 11-d-TXB2 level predicted increased polyp number (incidence rate ratio [IRR] [95% CI] 2.26 [1.11,4.58]) and risk (odds ratio [95% CI] 3.56 [1.09,11.63]). A low (Q1) on-treatment 11-d-TXB2 level predicted reduced colorectal polyp number compared to placebo (IRR 0.34 [0.12,0.93] for combination aspirin and EPA treatment) compared to high on-treatment 11-d-TXB2 values (0.61 [0.34,1.11]). Aspirin and EPA both inhibit PGE-M and 11-d-TXB2 synthesis in keeping with shared in vivo cyclooxygenase inhibition. Colorectal polyp risk and treatment response prediction by 11-d-TXB2 is consistent with a role for platelet activation during early colorectal carcinogenesis. The use of urinary 11-d-TXB2 measurement for a precision approach to colorectal cancer risk prediction and chemoprevention requires prospective evaluation.


Subject(s)
Aspirin , Colonic Polyps , Humans , Aspirin/pharmacology , Aspirin/therapeutic use , Eicosapentaenoic Acid , Prostaglandin-Endoperoxide Synthases , Thromboxane B2/urine , Biomarkers , Prostaglandins , Platelet Activation
3.
BJU Int ; 133(4): 460-473, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38031657

ABSTRACT

OBJECTIVES: To describe the health-related quality of life (HRQoL) of patients in a prospective 12-month observational cohort study of new bladder cancer diagnoses and compare with national cancer and general population surveys. PATIENTS AND METHODS: A prospective UK study in patients with new bladder cancer diagnoses at 13 NHS Trusts. The HRQoL data were collected at 3, 6, 9 and 12 months. Questionnaires used included: the EuroQoL five Dimensions (EQ-5D), European Organisation for Research and Treatment of Cancer quality of life questionnaire (EORTC QLQ)-30-item core, EORTC QLQ-24-item non-muscle-invasive bladder cancer, and EORTC QLQ-30-item muscle-invasive bladder cancer. Results were compared with the Cancer Quality of Life Survey and Health Survey for England. RESULTS: A total of 349 patients were recruited, 296 (85%) completed the first (baseline) and 233 (67%) the final survey. The patients underwent transurethral resection of bladder tumour (TURBT) ± intravesical therapy (238 patients, 80%), radical cystectomy/radiotherapy (51, 17%) or palliation (seven, 2%). At baseline, patients needing radical treatment reported worse HRQoL including lower social function (74.2 vs 83.8, P = 0.002), increased fatigue (31.5 vs 26.1, P = 0.03) and more future worries (39.2 vs 29.4, P = 0.005) than patients who underwent TURBT. Post-treatment surveys showed no change/improvements for patients who underwent TURBT but deterioration for the radically treated cohort. At final survey, reports were similar to baseline, regardless of treatment. Radically treated patients continued to report poorer HRQoL including issues with body image (23.4 vs 12.5, P = 0.007) and male sexual function (75.8 vs 40.4, P < 0.001) compared to those who underwent TURBT. Radically treated patients reported lower EQ-5D utility scores and more problems with usual activities than the general population. DISCUSSION: Patients undergoing TURBT can be reassured regarding HRQoL following treatment. However, those requiring radical treatment report greater changes in HRQoL with the need for appropriate clinical and supportive care to minimise the impact of treatments.


Subject(s)
Quality of Life , Urinary Bladder Neoplasms , Humans , Male , Prospective Studies , Urinary Bladder Neoplasms/diagnosis , Urinary Bladder Neoplasms/therapy , Urinary Bladder Neoplasms/pathology , Surveys and Questionnaires , Longitudinal Studies
4.
Support Care Cancer ; 32(7): 463, 2024 Jun 26.
Article in English | MEDLINE | ID: mdl-38922504

ABSTRACT

PURPOSE: To explore whether profiles derived from self-reported quality of life were associated with receipt of, and interest in, advice from a healthcare professional in people with a stoma. METHODS: Secondary analysis of cross-sectional national survey data from England of 4487 people with a stoma from colorectal cancer. The survey assessed quality of life using various scales, receipt and interest in various forms of advice, and physical activity. A three-step latent profile analysis was conducted to determine the optimum number of profiles. Multinomial regression explored factors associated with profile membership. A series of logistic regression models examined whether profile membership was associated with interest in advice. RESULTS: Five profiles were identified; 'consistently good quality of life', 'functional issues', 'functional and financial issues', 'low quality of life' and 'supported but struggling'. Individuals in the 'functional and financial issues' and 'low quality of life' profiles were more likely to have received financial advice compared to the 'consistently good quality of life' profile. When compared to the 'consistently good quality of life' profile, all other profiles were more likely to report wanting advice across a range of areas, with the strongest associations in the 'low quality of life' profile. CONCLUSION: Findings indicate that people with a stoma are not a homogenous group in terms of quality of life. Participants in profiles with quality of life concerns report wanting more advice across various categories but findings suggest there is scope to explore how this can be tailored or adapted to specific groups.


Subject(s)
Colorectal Neoplasms , Quality of Life , Surgical Stomas , Humans , Male , Female , Colorectal Neoplasms/psychology , Cross-Sectional Studies , Middle Aged , Aged , England , Adult , Surveys and Questionnaires , Aged, 80 and over , Logistic Models
5.
Age Ageing ; 53(5)2024 05 01.
Article in English | MEDLINE | ID: mdl-38783754

ABSTRACT

BACKGROUND: Numerous studies have revealed age-related inequalities in colorectal cancer care. Increasing levels of frailty in an ageing population may be contributing to this, but quantifying frailty in population-based studies is challenging. OBJECTIVE: To assess the feasibility, validity and reliability of the Hospital Frailty Risk Score (HFRS), the Secondary Care Administrative Records Frailty (SCARF) index and the frailty syndromes (FS) measures in a national colorectal cancer cohort. DESIGN: Retrospective population-based study using 136,008 patients with colorectal cancer treated within the English National Health Service. METHODS: Each measure was generated in the dataset to assess their feasibility. The diagnostic codes used in each measure were compared with those in the Charlson Comorbidity Index (CCI). Validity was assessed using the prevalence of frailty and relationship with 1-year survival. The Brier score and the c-statistic were used to assess performance and discriminative ability of models with included each measure. RESULTS: All measures demonstrated feasibility, validity and reliability. Diagnostic codes used in SCARF and CCI have considerable overlap. Prevalence of frailty determined by each differed; SCARF allocating 55.4% of the population to the lowest risk group compared with 85.1% (HFRS) and 81.2% (FS). HFRS and FS demonstrated the greatest difference in 1-year overall survival between those with the lowest and highest measured levels of frailty. Differences in model performance were marginal. CONCLUSIONS: HFRS, SCARF and FS all have value in quantifying frailty in routine administrative health care datasets. The most suitable measure will depend on the context and requirements of each individual epidemiological study.


Subject(s)
Colorectal Neoplasms , Feasibility Studies , Frailty , Humans , Colorectal Neoplasms/epidemiology , Colorectal Neoplasms/diagnosis , Colorectal Neoplasms/mortality , Aged , Frailty/diagnosis , Frailty/epidemiology , Male , Female , Retrospective Studies , Reproducibility of Results , Aged, 80 and over , Risk Assessment/methods , Prevalence , Middle Aged , Geriatric Assessment/methods , England/epidemiology , Frail Elderly/statistics & numerical data , Risk Factors , Age Factors , Predictive Value of Tests
6.
Am J Gastroenterol ; 117(11): 1858-1870, 2022 11 01.
Article in English | MEDLINE | ID: mdl-36327438

ABSTRACT

INTRODUCTION: Patients with inflammatory bowel diseases (IBDs) of the colon are at an increased risk of colorectal cancer (CRC). This study investigates the epidemiology of IBD-CRC and its outcomes. METHODS: Using population data from the English National Health Service held in the CRC data repository, all CRCs with and without prior diagnosis of IBD (Crohn's, ulcerative colitis, IBD unclassified, and IBD with cholangitis) between 2005 and 2018 were identified. Descriptive analyses and logistic regression models were used to compare the characteristics of the 2 groups and their outcomes up to 2 years. RESULTS: Three hundred ninety thousand six hundred fourteen patients diagnosed with CRC were included, of whom 5,141 (1.3%) also had a previous diagnosis of IBD. IBD-CRC cases were younger (median age at CRC diagnosis [interquartile range] 66 [54-76] vs 72 [63-79] years [ P < 0.01]), more likely to be diagnosed with CRC as an emergency (25.1% vs 16.7% [ P < 0.01]), and more likely to have a right-sided colonic tumor (37.4% vs 31.5% [ P < 0.01]). Total colectomy was performed in 36.3% of those with IBD (15.4% of Crohn's, 44.1% of ulcerative colitis, 44.5% of IBD unclassified, and 67.7% of IBD with cholangitis). Synchronous (3.2% vs 1.6% P < 0.01) and metachronous tumors (1.7% vs 0.9% P < 0.01) occurred twice as frequently in patients with IBD compared with those without IBD. Stage-specific survival up to 2 years was worse for IBD-associated cancers. DISCUSSION: IBD-associated CRCs occur in younger patients and have worse outcomes than sporadic CRCs. There is an urgent need to find reasons for these differences to inform screening, surveillance, and treatment strategies for CRC and its precursors in this high-risk group.


Subject(s)
Cholangitis , Colitis, Ulcerative , Colorectal Neoplasms , Crohn Disease , Inflammatory Bowel Diseases , Aged , Humans , Middle Aged , Colitis, Ulcerative/complications , Colitis, Ulcerative/epidemiology , Colitis, Ulcerative/pathology , Colorectal Neoplasms/diagnosis , Crohn Disease/complications , Inflammatory Bowel Diseases/complications , Inflammatory Bowel Diseases/epidemiology , Inflammatory Bowel Diseases/pathology , Risk Factors , State Medicine
7.
J Sex Med ; 19(9): 1431-1441, 2022 09.
Article in English | MEDLINE | ID: mdl-35871051

ABSTRACT

BACKGROUND: Sexual dysfunction is common in those affected by cancer and local and radical treatments for Bladder Cancer (BC) can affect sexual function directly. AIM: To evaluate sexual function following a bladder cancer (BC) diagnosis. METHODS: Self-reported sexual function was collected 10 years after a diagnosis of BC as part of a cross-sectional patient reported outcome measure (PROM) survey exploring life after BC diagnosis and treatment. OUTCOMES: Participants completed a combined EORTC QLQ-BLM30 and QLQ-NMIBC24 questionnaire, including questions on sexual activity, intimacy, erectile/ejaculatory function and vaginal dryness. RESULTS: A total of 1796 participants returned a completed survey out of 3279 eligible participants (55%). Of the participants who returned a completed survey, a total of 1530 (85%) participants answered sexual function questions. The median (IQR) age was 75 (70-81). Participants were predominantly men (78%) and married/in civil partnerships (66%). In total, 31% were sexually active. Vaginal dryness was common (66%) in women. Erectile and ejaculatory dysfunction (80% and 58% respectively) were common in men. Compared to TURBT +/- intravesical treatments, those who had radical treatment were less likely to be sexually active (adjusted OR 0.56, 95% CI: 0.44-0.72, P<0.001) and had worse mean scores for intimacy problems (29.1 [radical treatment] vs 12.1, P<0.001), male sexual problems (72.2 [radical treatment] vs 45.7, P<0.001) and overall sexual function (17.1 [radical treatment] vs 20.3, P=0.01). CLINICAL IMPLICATIONS: These findings highlight the magnitude of sexual dysfunction in the BC patient cohort and can help inform patients during the pre-op counselling process and shared decision making prior to BC treatments. STRENGTHS AND LIMITATIONS: This study provides the largest in-depth analysis of sexual activity and function after BC diagnosis and treatment, to date. Limitations include the lack of data on participants' sexual function prior to BC treatment and the heterogeneity with respect to time passed since last BC treatment. CONCLUSION: Sexual dysfunction in BC patients is common and rates appear higher following radical treatments compared to endoscopic. It is important to elicit these problems in clinics to enable counselling and treatment. Jubber I, Rogers Z, Catto JWF, et al. Sexual Activity, Function and Dysfunction After a Diagnosis of Bladder Cancer. J Sex Med 2022;19:1431-1441.


Subject(s)
Erectile Dysfunction , Sexual Dysfunction, Physiological , Urinary Bladder Neoplasms , Cross-Sectional Studies , Female , Humans , Male , Sexual Behavior , Sexual Partners , Surveys and Questionnaires
8.
Support Care Cancer ; 30(4): 3151-3164, 2022 Apr.
Article in English | MEDLINE | ID: mdl-34904181

ABSTRACT

OBJECTIVE: To evaluate the dynamic nature of self-reported health-related quality of life (HRQL) and morbidity burden in men diagnosed with prostate cancer, we performed a follow-up study of the Life After Prostate Cancer Diagnosis (LAPCD) study cohort 12 months after initial survey. METHODS: The LAPCD study collected information from 35,823 men across the UK who were 18-42 months post-diagnosis of prostate cancer. Men who were still alive 12 months later were resurveyed. Generic HRQL (EQ-5D-5L plus self-assessed health rating) and prostate cancer-specific outcomes (EPIC-26) were assessed. Treatment(s) received was self-reported. Previously defined clinically meaningful differences were used to evaluate changes in outcomes over time. RESULTS: A total of 28,450 men across all disease stages completed follow-up surveys (85.8% response). Of the 21,700 included in this study, 89.7% reported no additional treatments since the first survey. This group experienced stable urinary and bowel outcomes, with good function for most men at both time points. On-going poor (but stable) urinary issues were associated with previous surgery. Sexual function scores remained low (mean: 26.8/100). Self-assessed health ratings were stable over time. The largest declines in HRQL and functional outcomes were experienced by men reporting their first active treatment between surveys. DISCUSSION: The results suggest stability of HRQL and most specific morbidities by 18-42 months for men who report no further treatment in the subsequent 12 months. This is reassuring for those with good function and HRQL but re-enforces the need for early intervention and support for men who experience poor outcomes.


Subject(s)
Prostatic Neoplasms , Quality of Life , Follow-Up Studies , Humans , Male , Morbidity , Prostatic Neoplasms/epidemiology , Prostatic Neoplasms/therapy , United Kingdom/epidemiology
9.
Qual Life Res ; 31(8): 2435-2444, 2022 Aug.
Article in English | MEDLINE | ID: mdl-35217962

ABSTRACT

PURPOSE: Quality of life can be negatively impacted by the formation of a stoma and is influenced by a number of factors. Research to date treats people with a stoma as a homogenous group based on their quality of life. We attempted to identify subgroups based upon self-reported quality of life and explored variables associated with group membership. METHODS: The present study is a secondary analysis of a cross-sectional sample of 1419 people with a stoma. Participants completed validated questionnaires for quality of life, physical activity and clinical and demographic characteristics. Latent profile analysis was used to identify the optimal number of subgroups (profiles) and multinomial regression modelling was conducted to identify variables associated with profile membership. RESULTS: The analysis revealed 4 distinct profiles of people with a stoma: 'consistently good quality of life' [N = 891 (62.8%)], 'some quality of life concerns' [N = 184 (13.0%)], 'low quality of life' [N = 181 (12.8%)] and 'financial concerns' [N = 163 (11.5%)]. Modelling revealed that people with a recent stoma (formed < 2 years previously), who have a hernia and are less physically active were more likely to belong to the 'low quality of life' profile. Furthermore, those aged 16-55 were more likely to have financial concerns. CONCLUSION: This study was the first to identify latent profiles within this population and assess whether certain variables are associated with membership. Future research should build upon this to identify additional variables associated with these profiles, which can help to provide the basis for targeting and tailoring future interventions to specific subgroups of people with a stoma.


Subject(s)
Quality of Life , Surgical Stomas , Cross-Sectional Studies , Exercise , Humans , Quality of Life/psychology , Surveys and Questionnaires
10.
J Adv Nurs ; 78(3): 722-738, 2022 Mar.
Article in English | MEDLINE | ID: mdl-34708416

ABSTRACT

AIMS: Explore the evidence from randomized controlled trials for the effect of self-management interventions on quality of life, self-management skills and self-efficacy, and to explore which intervention characteristics are associated with effectiveness. DESIGN: Systematic review. DATA SOURCES: A search of the literature was conducted in these databases: MEDLINE (OVID), EMBASE (OVID) and PsychINFO (OVID) from January 2000 to February 2020. REVIEW METHODS: Studies were included if participants had a bowel stoma, were over the age of 18 and the design was a randomized controlled trial of a self-management programme. The outcome measures for this review were quality of life, self-management skills and self-efficacy. The Behaviour Change Technique Taxonomy was used to code interventions for underlying components and alongside other intervention characteristics, associations with improvements in outcomes were explored. RESULTS: The search identified 3141 articles, 16 of which were eligible. A meta-analysis of self-efficacy scores from five studies (N = 536) found an improvement in those that received the self-management intervention at follow-up with a 12-point mean difference compared with the usual care group. Effects on quality of life and self-management skills were mixed, and meta-analyses of these data were not possible. Across 13 studies an average of 10 behaviour change techniques were used with, credible source (e.g. nurse, doctor, therapist) (n = 13), instruction on how to perform the behaviour (n = 13), demonstration of the behaviour (n = 12) used most often. The behaviour change technique of self-monitoring was associated with an improvement in quality of life. The involvement of a nurse was associated with higher self-efficacy and self-management skills. CONCLUSION: This review suggests that self-management interventions can increase peoples' self-efficacy for managing their stoma. IMPACT: A standardized approach to the reporting of interventions and the measures used is needed in future studies to better understand the effect on quality of life and self-management skills.


Subject(s)
Self-Management , Adult , Allied Health Personnel , Humans , Middle Aged , Outcome Assessment, Health Care , Quality of Life , Randomized Controlled Trials as Topic , Self Efficacy
11.
J Sex Med ; 18(3): 515-525, 2021 03.
Article in English | MEDLINE | ID: mdl-33642238

ABSTRACT

BACKGROUND: Men with prostate cancer (PCa) often experience sexual dysfunction following diagnosis and treatment, yet little is known about the support they receive to deal with this. AIM: To explore men's experiences of support for sexual dysfunction following PCa diagnosis. METHODS: This study included a U.K.-wide survey of men 18-42 months post-diagnosis of PCa, identified through cancer registries. The survey measured sexual function and the extent to which men perceived sexual dysfunction to be a problem (Expanded Prostate Cancer Index Composite-26), access to and experience of medications, devices, and specialist services for sexual dysfunction, and included a free-text question for further comments. Analysis focussed on men who reported poor sexual function, which they considered a moderate or big problem. Descriptive statistics explored the characteristics of men offered intervention and those that found this helpful. Free-text responses were analyzed using thematic analysis. OUTCOME: The main outcome of this study was to assess access to and experience of medications, devices, and specialist services for sexual dysfunction. RESULTS: 39.0% of all survey respondents (13,978/35,823) reported poor sexual function, which they considered a moderate or big problem. 51.7% of these men were not offered any intervention to aid sexual functioning. 71.9% of those offered an intervention reported trying it, of whom 48.7% found the intervention helpful. Men treated with surgery or brachytherapy were most likely to be offered an intervention. Medication was the most commonly offered intervention and 39.3% of those who tried medication found this helpful. Although offered less often, approximately half of the men who tried devices or attended specialist services found the intervention helpful. Free-text responses indicated that barriers to accessing support included inadequate information and support from healthcare professionals, embarrassment, negative views about treatment options, concerns about side effects and safety, and inconsistencies between secondary and primary care. Barriers to continuing use included limited effectiveness of treatments, inadequate ongoing support, and funding constraints. Drivers of sexual recovery included patient proactivity and persistence with trying different treatment options and ongoing support from health professionals. CLINICAL IMPLICATIONS: There is an urgent need to ensure that all men are offered, and have equal access to, sexual care support, with referral to specialist services when required. STRENGTHS & LIMITATIONS: This study presents data from a large, U.K.-wide, population-based study of men with PCa and includes quantitative and qualitative findings. The possibility of non-response bias should, however, be considered. CONCLUSION: There are significant shortcomings in the support offered to U.K. men with sexual dysfunction following diagnosis and treatment for PCa which need to be addressed. Watson E, Wilding S, Matheson L, et al. Experiences of Support for Sexual Dysfunction in Men With Prostate Cancer: Findings From a U.K.-Wide Mixed Methods Study. J Sex Med 2021;18:515-525.


Subject(s)
Brachytherapy , Prostatic Neoplasms , Sexual Dysfunction, Physiological , Humans , Male , Prostatic Neoplasms/complications , Prostatic Neoplasms/therapy , Sexual Behavior , Sexual Dysfunction, Physiological/etiology , Sexual Dysfunction, Physiological/therapy , Surveys and Questionnaires
12.
Ecol Lett ; 23(10): 1468-1478, 2020 Oct.
Article in English | MEDLINE | ID: mdl-32808725

ABSTRACT

Relationships between different measures of stability are not well understood in part because empiricists and theoreticians tend to measure different aspects and most studies only explore a single form of stability. Using time-series data from experimental plankton communities, we compared temporal stability typically measured by empiricists (coefficient of variation in biomass) to stability measures typically measured by theoreticians derived from the community matrix (asymptotic resilience, initial resilience and intrinsic stochastic invariability) using first-order multivariate autoregressive models (MAR). Community matrices were also used to derive estimates of interaction strengths between plankton groups. We found no relationship between temporal stability and stability measures derived from the community matrix. Weaker interaction strengths were generally associated with higher stability for community matrix measures of stability, but were not consistently associated with higher temporal stability. Temporal stability and stability measures derived from the community matrix stability appear to represent different aspects of stability reflecting the multi-dimensionality of stability.


Subject(s)
Ecosystem , Plankton , Biomass
13.
Int J Obes (Lond) ; 44(5): 1028-1040, 2020 05.
Article in English | MEDLINE | ID: mdl-31988482

ABSTRACT

BACKGROUND/OBJECTIVE: Obesity is thought to be the product of over 100 different factors, interacting as a complex system over multiple levels. Understanding the drivers of obesity requires considerable data, which are challenging, costly and time-consuming to collect through traditional means. Use of 'big data' presents a potential solution to this challenge. Big data is defined by Delphi consensus as: always digital, has a large sample size, and a large volume or variety or velocity of variables that require additional computing power (Vogel et al. Int J Obes. 2019). 'Additional computing power' introduces the concept of big data analytics. The aim of this paper is to showcase international research case studies presented during a seminar series held by the Economic and Social Research Council (ESRC) Strategic Network for Obesity in the UK. These are intended to provide an in-depth view of how big data can be used in obesity research, and the specific benefits, limitations and challenges encountered. METHODS AND RESULTS: Three case studies are presented. The first investigated the influence of the built environment on physical activity. It used spatial data on green spaces and exercise facilities alongside individual-level data on physical activity and swipe card entry to leisure centres, collected as part of a local authority exercise class initiative. The second used a variety of linked electronic health datasets to investigate associations between obesity surgery and the risk of developing cancer. The third used data on tax parcel values alongside data from the Seattle Obesity Study to investigate sociodemographic determinants of obesity in Seattle. CONCLUSIONS: The case studies demonstrated how big data could be used to augment traditional data to capture a broader range of variables in the obesity system. They also showed that big data can present improvements over traditional data in relation to size, coverage, temporality, and objectivity of measures. However, the case studies also encountered challenges or limitations; particularly in relation to hidden/unforeseen biases and lack of contextual information. Overall, despite challenges, big data presents a relatively untapped resource that shows promise in helping to understand drivers of obesity.


Subject(s)
Big Data , Biomedical Research , Obesity/epidemiology , Exercise , Humans , Research Design , Socioeconomic Factors
14.
Psychooncology ; 29(5): 886-893, 2020 05.
Article in English | MEDLINE | ID: mdl-32065691

ABSTRACT

OBJECTIVE: Clinical options for managing nonmetastatic prostate cancer (PCa) vary. Each option has side effects associated with it, leading to difficulty in decision-making. This study aimed to assess the relationship between patient involvement in treatment decision-making and subsequent decision regret (DR), and quantify the impact of health-related quality of life (HRQL) outcomes on DR. METHODS: Men living in the United Kingdom, 18 to 42 months after diagnosis of PCa, were identified from cancer registration data and sent a questionnaire. Measures included the Decision Regret Scale (DRS), Expanded Prostate cancer Index Composite short form (EPIC-26), EQ-5D-5L, and an item on involvement in treatment decision-making. Multivariable ordinal regression was utilized, with DR categorized as none, mild, or moderate/severe regret. RESULTS: A total of 17 193 men with stage I-III PCa completed the DRS: 36.6% reported no regret, 43.3% mild regret, and 20.0% moderate/severe regret. The odds of reporting DR were greater if men indicated their views were not taken into account odds ratio ([OR] = 6.42, 95% CI: 5.39-7.64) or were involved "to some extent" in decision-making (OR = 4.63, 95% CI: 4.27-5.02), compared with men who were "definitely" involved. After adjustment, including for involvement, men reporting moderate/big problems with urinary, bowel, or sexual function were more likely to experience regret compared with men with no/small problems. Better HRQL scores were associated with lower levels of DR. CONCLUSIONS: This large-scale study demonstrates the benefit of patient involvement in treatment decision-making for nonmetastatic PCa. However, men experiencing side effects and poorer HRQL report greater DR. Promoting engagement in clinical decision-making represents good practice and may reduce the risk of subsequent regret.


Subject(s)
Decision Making , Patient Participation/psychology , Patient Reported Outcome Measures , Prostatic Neoplasms/psychology , Quality of Life/psychology , Adult , Aged , Emotions , Humans , Male , Middle Aged , Prostatic Neoplasms/therapy , Surveys and Questionnaires , United Kingdom
15.
Lancet Oncol ; 20(3): 436-447, 2019 03.
Article in English | MEDLINE | ID: mdl-30713036

ABSTRACT

BACKGROUND: Little is known about the health-related quality of life (HRQOL) of men living with advanced prostate cancer. We report population-wide functional outcomes and HRQOL in men with all stages of prostate cancer and identify implications for health-care delivery. METHODS: For this population-based study, men in the UK living 18-42 months after diagnosis of prostate cancer were identified through cancer registration data. A postal survey was administered, which contained validated measures to assess functional outcomes (urinary incontinence, urinary irritation and obstruction, bowel, sexual, and vitality and hormonal function), measured with the Expanded Prostate Cancer Index Composite short form (EPIC-26), plus questions about use of interventions for sexual dysfunction) and generic HRQOL (assessed with the 5-level EuroQol five dimensions questionnaire [EQ-5D-5L] measuring mobility, self-care, usual activities, pain or discomfort, and anxiety or depression, plus a rating of self-assessed health). Log-linear and binary logistic regression models were used to compare functional outcomes and HRQOL across diagnostic stages and self-reported treatment groups. Each model included adjustment for age, socioeconomic deprivation, and number of other long-term conditions. FINDINGS: 35 823 (60·8%) of 58 930 men responded to the survey. Disease stage was known for 30 733 (85·8%) of 35 823 men; 19 599 (63·8%) had stage I or II, 7209 (23·4%) stage III, and 3925 (12·8%) stage IV disease. Mean adjusted EPIC-26 domain scores were high, indicating good function, except for sexual function, for which scores were much lower. Compared with men who did not receive androgen deprivation therapy, more men who received the therapy reported moderate to big problems with hot flushes (30·7% [95% CI 29·8-31·6] vs 5·4% [5·0-5·8]), low energy (29·4% [95% CI 28·6-30·3] vs 14·7% [14·2-15·3]), and weight gain (22·5%, 21·7-23·3) vs 6·9% [6·5-7·3]). Poor sexual function was common (81·0%; 95% CI 80·6-81·5), regardless of stage, and more than half of men (n=18 782 [55·8%]) were not offered any intervention to help with this condition. Overall, self-assessed health was similar in men with stage I-III disease, and although slightly reduced in those with stage IV cancer, 23·5% of men with metastatic disease reported no problems on any EQ-5D dimension. INTERPRETATION: Men diagnosed with advanced disease do not report substantially different HRQOL outcomes to those diagnosed with localised disease, although considerable problems with hormonal function and fatigue are reported in men treated with androgen deprivation therapy. Sexual dysfunction is common and most men are not offered helpful intervention or support. Service improvements around sexual rehabilitation and measures to reduce the effects of androgen deprivation therapy are required. FUNDING: The Movember Foundation, in partnership with Prostate Cancer UK.


Subject(s)
Prostatic Neoplasms/epidemiology , Quality of Life , Urinary Incontinence/epidemiology , Aged , Androgen Antagonists/therapeutic use , Humans , Male , Middle Aged , Neoplasm Staging , Patient Reported Outcome Measures , Prostatic Neoplasms/pathology , Self Report , Surveys and Questionnaires , United Kingdom/epidemiology , Urinary Incontinence/pathology
16.
BMC Cancer ; 19(1): 947, 2019 Oct 15.
Article in English | MEDLINE | ID: mdl-31615476

ABSTRACT

BACKGROUND: Quality of life among prostate cancer survivors varies by socio-demographic factors and treatment type received; however, less in known about differences in functional outcomes by method of presentation. We investigate differences in reported urinary, bowel, sexual and hormone-related problems between symptomatic and PSA-detected prostate cancer survivors. METHODS: A UK wide cross-sectional postal survey of prostate cancer survivors conducted 18-42 months post-diagnosis. Questions were included on presentation method and treatment. Functional outcome was determined using the EPIC-26 questionnaire. Reported outcomes were compared for symptomatic and PSA-detected survivors using ANOVA and multivariable log-linear regression. RESULTS: Thirty-five thousand eight hundred twenty-three men responded (response rate: 60.8%). Of these, 31.3% reported presenting via PSA test and 59.7% symptomatically. In multivariable analysis, symptomatic men reported more difficulty with urinary incontinence (Adjusted mean ratio (AMR): 0.96, 95% CI: 0.96-0.97), urinary irritation (AMR: 0.95, 95% CI: 0.95-0.96), bowel function (AMR: 0.97, 95% CI: 0.97-0.98), sexual function (AMR: 0.90, 95% CI: 0.88-0.92), and vitality/hormonal function (AMR: 0.96, 95% CI: 0.96-0.96) than PSA-detected men. Differences were consistent across respondents of differing age, stage, Gleason score and treatment type. CONCLUSION: Prostate cancer survivors presenting symptomatically report poorer functional outcomes than PSA-detected survivors. Differences were not explained by socio-demographic or clinical factors. Clinicians should be aware that men presenting with symptoms are more likely to report functional difficulties after prostate cancer treatment and may need additional aftercare if these difficulties persist. Method of presentation should be considered as a covariate in patient-reported outcome studies of prostate cancer.


Subject(s)
Cancer Survivors , Patient Reported Outcome Measures , Prostate-Specific Antigen/analysis , Prostatic Neoplasms/diagnosis , Prostatic Neoplasms/drug therapy , Quality of Life , Aftercare , Age Factors , Aged , Cross-Sectional Studies , Humans , Male , Middle Aged , Neoplasm Grading , Neoplasm Staging , Self Report , Treatment Outcome , United Kingdom , Urinary Incontinence
17.
Psychooncology ; 28(7): 1567-1575, 2019 07.
Article in English | MEDLINE | ID: mdl-31132801

ABSTRACT

OBJECTIVE: To address concerns over the psychological impact of being on a monitoring pathway following prostate cancer (PCa) diagnosis, this study compared the psychological status of men on active surveillance (AS) or watchful waiting (WW) with men on active treatment (AT) and explored psychological adjustment in men on AS/WW. METHODS: Cross-sectional survey of UK men diagnosed with PCa 18 to 42 months previously (n = 16 726, localised disease at diagnosis) and telephone interviews with 24 men on AS/WW. Psychological outcomes were measured using two validated scales (Short Warwick-Edinburgh Mental Well-being Scale [SWEMWBS] and Kessler Psychological Distress Scale). Univariable and multivariable analyses compared outcomes between men on AS/WW and AT. Thematic analysis of interviews was undertaken, informed by a previously developed theory of adjustment to cancer. RESULTS: A total of 3986 (23.8%) respondents were on AS/WW. Overall, psychological outcomes were similar or better in men on AS/WW compared with those receiving AT (SWEMWBS: Poor well-being; 12.3% AS/WW vs 13.9% AT, adjusted OR = 0.86, 95% CI, 0.76-0.97; K6: severe psychological distress; 4.6% vs 5.4%, adjusted OR = 0.90, 95% CI, 0.74-1.08). Interviews indicated that most men on AS/WW had adjusted positively. Men with poorer well-being were less able to accept, reframe positively and normalise their diagnosis, described receiving insufficient information and support, and reported a lack of confidence in their health care professionals. CONCLUSIONS: Most men on AS/WW cope well psychologically. Men making treatment decisions should be given this information. Psychological health should be assessed to determine suitability for AS/WW, and at monitoring appointments. A clear action plan and support from health care professionals is important.


Subject(s)
Patient Preference/psychology , Prostatic Neoplasms/psychology , Watchful Waiting , Adult , Aged , Cross-Sectional Studies , Decision Making , Disease Progression , Humans , Male , Mental Health , Middle Aged , United Kingdom
18.
Qual Life Res ; 28(10): 2741-2751, 2019 Oct.
Article in English | MEDLINE | ID: mdl-31115843

ABSTRACT

PURPOSE: There are known associations between treatment of prostate cancer (PCa) involving Androgen Deprivation Therapy (ADT) and psychological and physical side effects. We investigate the associations between cancer-related symptoms, health-related quality of life (HRQL), and poor psychological outcomes in men whose treatment for PCa involved ADT. METHODS: A cross-sectional postal questionnaire was administered to UK men 18-42 months post diagnosis of PCa. Men completed items on functional outcomes using the Expanded Prostate Cancer Index Composite (EPIC-26), EuroQol-5D (EQ-5D), and the European Organisation for Research and Treatment of Cancer (EORTC) Fatigue subscale. Psychological outcomes (mental well-being and psychological distress) were assessed using the Short Warwick-Edinburgh Mental Well-being Scale (SWEMWBS) and the Kessler 6-item scale (K6), respectively. Associations between explanatory variables and psychological outcomes were assessed using stepped logistic regression. RESULTS: 13,097 men treated with ADT completed a questionnaire. A minority of men reported poor mental well-being (15.5%) or severe psychological distress (6.6%). After controlling for sociodemographic and clinical variables, reporting clinically significant fatigue was strongly associated with severe psychological distress (OR 9.92; 95% CI 7.63 to 12.89) and poor well-being (OR 3.86; 95% CI 3.38 to 4.42). All cancer-related symptoms and HRQL variables were associated with both psychological outcomes. CONCLUSIONS: While the majority of men treated with ADT did not report poor psychological outcomes, a small proportion reported severe problems. Clinically significant fatigue was demonstrated as a possible indicator of poor outcomes. Healthcare systems need to have clear protocols in place which specifically and routinely target psychological distress and fatigue.


Subject(s)
Androgen Antagonists/adverse effects , Mental Health/standards , Prostatic Neoplasms/drug therapy , Prostatic Neoplasms/psychology , Stress, Psychological/psychology , Aged , Cross-Sectional Studies , Humans , Male , Prostatic Neoplasms/pathology , Quality of Life/psychology , Surveys and Questionnaires
19.
Int J Clin Pract ; 73(1): e13259, 2019 Jan.
Article in English | MEDLINE | ID: mdl-30222241

ABSTRACT

BACKGROUND: Erectile dysfunction is common among older men; however, diagnosis and treatment compared to reported prevalence is low. We aim to identify the degree to which older men are offered treatment for the condition and determine the level of unmet need within Northern Ireland (NI). METHODOLOGY: Analysis of data collected using a cross-sectional survey was conducted for men aged ≥60 years with data weighted to the NI population by age and deprivation. Respondents answered questions on sociodemographic factors, health-related characteristics, ability to function sexually, level of sexual interest and activity, and any treatment offered to improve erections in the last 3 years. Results are presented as proportions reporting treatment receipt, with differences by respondent characteristics assessed using chi-square tests and multivariable logistic regression. RESULTS: Among 2597 respondents, 46.5% reported erectile dysfunction. One quarter (25.8%) recalled being offered either medication, devices, or specialised services to improve erections. The offer of treatment was associated with younger age, being separated or divorced, higher number of long-term conditions, and greater interest in sex. Of men reporting erectile dysfunction and offered medication, 28.8% found them helpful and currently use them. CONCLUSIONS: As a result of not being offered treatment or not finding treatment useful, 93% of men reporting erectile dysfunction have no help with the condition. This is a likely consequence of treatment availability through the NHS in NI, but also suggests that healthcare professionals need to engage more proactively with older men, discussing sexual health routinely and following up those treated for the condition.


Subject(s)
Erectile Dysfunction/drug therapy , Sexual Behavior , Age Factors , Aged , Aged, 80 and over , Comorbidity , Cross-Sectional Studies , Erectile Dysfunction/therapy , Health Services Accessibility , Humans , Male , Marital Status , Middle Aged , Needs Assessment , Northern Ireland , Surveys and Questionnaires
20.
Br J Cancer ; 118(11): 1518-1528, 2018 05.
Article in English | MEDLINE | ID: mdl-29755116

ABSTRACT

BACKGROUND: Little is known about quality of life after bladder cancer treatment. This common cancer is managed using treatments that can affect urinary, sexual and bowel function. METHODS: To understand quality of life and inform future care, the Department of Health (England) surveyed adults surviving bladder cancer 1-5 years after diagnosis. Questions related to disease status, co-existing conditions, generic health (EQ-5D), cancer-generic (Social Difficulties Inventory) and cancer-specific outcomes (Functional Assessment of Cancer Therapy-Bladder). RESULTS: In total, 673 (54%) patients responded; including 500 (74%) men and 539 (80%) with co-existing conditions. Most respondents received endoscopic treatment (60%), while 92 (14%) and 99 (15%) received radical cystectomy or radiotherapy, respectively. Questionnaire completion rates varied (51-97%). Treatment groups reported ≥1 problem using EQ-5D generic domains (59-74%). Usual activities was the most common concern. Urinary frequency was common after endoscopy (34-37%) and radiotherapy (44-50%). Certain populations were more likely to report generic, cancer-generic and cancer-specific problems; notably those with co-existing long-term conditions and those treated with radiotherapy. CONCLUSION: The study demonstrates the importance of assessing patient-reported outcomes in this population. There is a need for larger, more in-depth studies to fully understand the challenges patients with bladder cancer face.


Subject(s)
Patient Reported Outcome Measures , Quality of Life/psychology , Urinary Bladder Neoplasms/therapy , Adult , Aged , Aged, 80 and over , Comorbidity , Cystectomy/statistics & numerical data , Endoscopy/statistics & numerical data , England , Female , Humans , Male , Middle Aged , Radiotherapy , Surveys and Questionnaires , Urinary Bladder Neoplasms/ethnology , Urinary Bladder Neoplasms/psychology
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