Pre- and Postdiagnosis Physical Activity, Television Viewing, and Mortality Among Patients With Colorectal Cancer in the National Institutes of Health–AARP Diet and Health Study

Purpose Physical inactivity has been associated with higher mortality risk among survivors of colorectal cancer (CRC), but the independent effects of pre- versus postdiagnosis activity are unclear, and the association between watching television (TV) and mortality in survivors of CRC is previously undefined. Methods We analyzed the associations between prediagnosis (n = 3,797) and postdiagnosis (n = 1,759) leisure time physical activity (LTPA) and TV watching and overall and disease-specific mortality among patients with CRC. We used Cox proportional hazards regression to estimate hazard ratios (HRs) and 95% CIs, adjusting for known mortality risk factors. Results Comparing survivors of CRC reporting more than 7 hours per week (h/wk) of prediagnosis LTPA with those reporting no LTPA, we found a 20% lower risk of all-cause mortality (HR, 0.80; 95% CI, 0.68 to 0.95; P for trend = .021). Postdiagnosis LTPA of ≥ 7 h/wk, compared with none, was associated with a 31% lower all-cause mortality risk (HR, 0.69; 95% CI, 0.49 to 0.98; P for trend = .006), independent of prediagnosis activity. Compared with 0 to 2 TV hours per day (h/d) before diagnosis, those reporting ≥ 5 h/d of TV before diagnosis had a 22% increased all-cause mortality risk (HR, 1.22; 95% CI, 1.06 to 1.41; P trend = .002), and more postdiagnosis TV watching was associated with a nonsignificant 25% increase in all-cause mortality risk (HR, 1.25; 95% CI, 0.93 to 1.67; P for trend = .126). Conclusion LTPA was inversely associated with all-cause mortality, whereas more TV watching was associated with increased mortality risk. For both LTPA and TV watching, postdiagnosis measures independently explained the association with mortality. Clinicians should promote both minimizing TV time and increasing physical activity for longevity among survivors of CRC, regardless of previous behaviors.

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Independent effects of waist circumference and physical activity on all-cause mortality in Canadian women

Applied Physiology Nutrition and Metabolism ◽

10.1139/h05-038 ◽

2006 ◽

Vol 31 (3) ◽

pp. 271-276 ◽

Cited By ~ 24

Author(s):

Peter T Katzmarzyk ◽

Cora L Craig

Keyword(s):

Physical Activity ◽

Cohort Study ◽

Waist Circumference ◽

Physical Inactivity ◽

Proportional Hazards ◽

Leisure Time Physical Activity ◽

Smoking Status ◽

Cox Proportional Hazards ◽

Independent Effects

The purpose of this study was to determine the independent effects of waist circumference (WC) and physical inactivity on the risk of mortality in women. This prospective cohort study included 5421 female participants 20-69 years of age in the 1981 Canada Fitness Survey. WC was measured with an anthropometric tape and leisure-time physical activity levels over the previous 12 months were assessed with a questionnaire. Mortality surveillance was conducted by data linkage with the Canadian Mortality Database through 31 December, 1993. The hazard ratios (HR) of mortality were estimated using Cox proportional hazards regression with age, smoking status, and alcohol con sumption included as covariates in all models. A total of 225 deaths occurred over an average of 12.4 years of follow up (67 500 person-years of follow up). Physical activity (HR = 0.78; 95% C.I.: 0.64-0.95) and WC (HR = 1.17; 95% C.I.: 1.05-1.31) were associated with mortality when included in separate regression models. When included in the same model, both physical activity (HR = 0.79; 95% CI: 0.65-0.96) and WC (HR = 1.16; 95% C.I.: 1.04-1.30) remained independent significant predictors of mortality. In conclusion, physical inactivity and high WC have significant independent risks of premature mortality among women.Key words: death, obesity, cohort study, Canada Fitness Survey.

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Effects of Leisure-Time and Occupational Physical Activity on Total Mortality Risk in NHANES III According to Sex, Ethnicity, Central Obesity, and Age

Journal of Physical Activity and Health ◽

10.1123/jpah.2013-0198 ◽

2015 ◽

Vol 12 (2) ◽

pp. 184-192 ◽

Cited By ~ 33

Author(s):

Aline Richard ◽

Brian Martin ◽

Miriam Wanner ◽

Monika Eichholzer ◽

Sabine Rohrmann

Keyword(s):

Physical Activity ◽

Mortality Risk ◽

Mexican Americans ◽

Leisure Time ◽

Leisure Time Physical Activity ◽

Total Mortality ◽

Cox Proportional Hazards ◽

Nhanes Iii ◽

Occupational Physical Activity ◽

All Cause Mortality

Background:Associations of physical activity with all-cause mortality seem to be quite strong, but little is known about potential effect modifiers as sex, race/ethnicity, age, and obesity.Methods:Data of the Third National Health and Nutrition Examination Survey (NHANES III), conducted 1988−1994 with mortality follow-up until 2006, were used to compare mortality risk between different levels of leisure-time physical activity (LTPA) and occupational physical activity (OPA). Cox proportional hazards models were used to estimate hazard ratios (HRs) and 95% confidence intervals (CIs).Results:LTPA (n = 15,307) was inversely associated with all-cause mortality (HR 0.75, 95% CI 0.64−0.88 for regular vs. no LTPA). There was a statistically significant interaction with age (P = .03), with participants over 60 years of age benefitting more from regular or irregular LTPA. OPA was positively associated with all-cause mortality (HR 1.25, 95% CI 0.85−1.84 for high vs. low OPA), particularly among Mexican-Americans (HR 2.28, 95% CI 1.23−4.22); statistically significant interactions were observed for obesity and gender.Conclusions:LTPA clearly predicts all-cause mortality. However, associations between OPA and all-cause mortality are unclear and need further research with special regard to ethnic differences.

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High School Quality and 56-Year All-Cause Mortality Risk Across Race and Ethnicity

Innovation in Aging ◽

10.1093/geroni/igaa057.1632 ◽

2020 ◽

Vol 4 (Supplement_1) ◽

pp. 505-506

Author(s):

Dominika Seblova ◽

Kelly Peters ◽

Susan Lapham ◽

Laura Zahodne ◽

Tara Gruenewald ◽

...

Keyword(s):

High School ◽

Mortality Risk ◽

Race And Ethnicity ◽

Proportional Hazards ◽

School Quality ◽

Cox Proportional Hazards ◽

School Level ◽

Lower Mortality ◽

All Cause Mortality ◽

Race Ethnicity

Abstract Having more years of education is independently associated with lower mortality, but it is unclear whether other attributes of schooling matter. We examined the association of high school quality and all-cause mortality across race/ethnicity. In 1960, about 5% of US high schools participated in Project Talent (PT), which collected information about students and their schools. Over 21,000 PT respondents were followed for mortality into their eighth decade of life using the National Death Index. A school quality factor, capturing term length, class size, and teacher qualifications, was used as the main predictor. First, we estimated overall and sex-stratified Cox proportional hazards models with standard errors clustered at the school level, adjusting for age, sex, composite measure of parental socioeconomic status, and 1960 cognitive ability. Second, we added an interaction between school quality and race/ethnicity. Among this diverse cohort (60% non-Hispanic Whites, 23% non-Hispanic Blacks, 7% Hispanics, 10% classified as another race/s) there were 3,476 deaths (16.5%). School quality was highest for Hispanic respondents and lowest for non-Hispanic Blacks. Non-Hispanic Blacks also had the highest mortality risk. In the whole sample, school quality was not associated with mortality risk. However, higher school quality was associated with lower mortality among those classified as another race/s (HR 0.75, 95% CI: 0.56-0.99). For non-Hispanic Blacks and Whites, the HR point estimates were unreliable, but suggest that higher school quality is associated with increased mortality. Future work will disentangle these differences in association of school quality across race/ethnicity and examine cause-specific mortality.

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Sedentary Behaviors, TV Viewing Time, and Risk of Young-Onset Colorectal Cancer

JNCI Cancer Spectrum ◽

10.1093/jncics/pky073 ◽

2018 ◽

Vol 2 (4) ◽

Cited By ~ 18

Author(s):

Long H Nguyen ◽

Po-Hong Liu ◽

Xiaobin Zheng ◽

NaNa Keum ◽

Xiaoyu Zong ◽

...

Keyword(s):

Colorectal Cancer ◽

Proportional Hazards ◽

Statistical Tests ◽

Cox Proportional Hazards ◽

Health Study ◽

Viewing Time ◽

Sedentary Behaviors ◽

Tv Viewing ◽

Young Onset ◽

Increased Risk

Abstract Background Colorectal cancer (CRC) diagnosed before age 50 years, or young-onset CRC, is increasing globally with undefined etiology. A sedentary lifestyle is an emerging risk factor for CRC after age 50 years, but its role in young-onset CRC is unknown. Methods We prospectively evaluated sedentary behaviors, primarily time watching television (TV), and risk of young-onset CRC among 89 278 women in the Nurses’ Health Study II ages 25–42 years at recruitment (1991–2011). We used Cox proportional hazards modelling to estimate relative risks (RR) and 95% confidence intervals (CIs). Statistical tests were two-sided. Results We documented 118 young-onset CRCs over 1 262 540 person-years. Sedentary TV viewing time was statistically significantly associated with increased risk of young-onset CRC, after adjusting for putative risk factors, including obesity and physical activity. Compared to no more than 7 hours per week, women with 7.1–14 hours per week of TV time had a multivariable relative risk (RR) of 1.12 (95% confidence interval [CI] = 0.72 to 1.75), further increased for greater than 14 hours per week (RR = 1.69, 95% CI = 1.07 to 2.67, Ptrend = .03). This association was observed among participants without a CRC family history and was more pronounced for rectal cancer (RR for >14 vs ≤7 hours per week 2.44, 95% CI = 1.03 to 5.78, Ptrend = .04). Overweight or obese participants may be more susceptible. Conclusion Independent of exercise and obesity, prolonged sedentary TV viewing time, a surrogate for a more inactive lifestyle, was associated with increased risk of young-onset CRC, particularly of the rectum. These findings provide further evidence on the importance of maintaining an active lifestyle.

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Eosinophil count and mortality risk in incident hemodialysis patients

Nephrology Dialysis Transplantation ◽

10.1093/ndt/gfz296 ◽

2020 ◽

Vol 35 (6) ◽

pp. 1032-1042

Author(s):

Duk-Hee Kang ◽

Yuji Lee ◽

Carola Ellen Kleine ◽

Yong Kyu Lee ◽

Christina Park ◽

...

Keyword(s):

Mortality Risk ◽

Eosinophil Count ◽

Proportional Hazards ◽

Cox Proportional Hazards ◽

Time Varying ◽

Cox Proportional Hazards Models ◽

Lower Baseline ◽

All Cause Mortality ◽

Relationship Of ◽

The Relationship

Abstract Background Eosinophils are traditionally known as moderators of allergic reactions; however, they have now emerged as one of the principal immune-regulating cells as well as predictors of vascular disease and mortality in the general population. Although eosinophilia has been demonstrated in hemodialysis (HD) patients, associations of eosinophil count (EOC) and its changes with mortality in HD patients are still unknown. Methods In 107 506 incident HD patients treated by a large dialysis organization during 2007–11, we examined the relationships of baseline and time-varying EOC and its changes (ΔEOC) over the first 3 months with all-cause mortality using Cox proportional hazards models with three levels of hierarchical adjustment. Results Baseline median EOC was 231 (interquartile range 155–339) cells/μL and eosinophilia (>350 cells/μL) was observed in 23.4% of patients. There was a gradual increase in EOC over time after HD initiation with a median ΔEOC of 5.1 (IQR −53–199) cells/μL, which did not parallel the changes in white blood cell count. In fully adjusted models, mortality risk was highest in subjects with lower baseline and time-varying EOC (<100 cells/μL) and was also slightly higher in patients with higher levels (≥550 cells/μL), resulting in a reverse J-shaped relationship. The relationship of ΔEOC with all-cause mortality risk was also a reverse J-shape where both an increase and decrease exhibited a higher mortality risk. Conclusions Both lower and higher EOCs and changes in EOC over the first 3 months after HD initiation were associated with higher all-cause mortality in incident HD patients.

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Effects of metformin and sulfonylureas on overall and colorectal cancer-specific mortality.

Journal of Clinical Oncology ◽

10.1200/jco.2012.30.15_suppl.2599 ◽

2012 ◽

Vol 30 (15_suppl) ◽

pp. 2599-2599

Author(s):

Susan Spillane ◽

Kathleen Bennett ◽

Linda Sharp ◽

Thomas Ian Barron

Keyword(s):

Colorectal Cancer ◽

Colon Cancer ◽

Proportional Hazards ◽

Early Stage ◽

Population Based ◽

Cox Proportional Hazards ◽

Stage I ◽

Early Stage Disease ◽

All Cause Mortality ◽

Specific Mortality

2599 Background: Preclinical studies have suggested a role for metformin in the treatment of colorectal cancer (CRC). Associations between metformin versus sulfonylurea exposure and mortality (all-cause and colorectal cancer specific) are assessed in this population-based study of patients with a diagnosis of stage I-IV CRC. Methods: National Cancer Registry Ireland records were linked to prescription claims data and used to identify a cohort of patients with incident TNM stage I-IV CRC diagnosed 2001-2006. From this cohort, 2 patient groups were identified and compared for outcomes - those who received a prescription for metformin +/- a sulfonylurea (MET) or a prescription for sulfonylurea alone (SUL) in the 90 days pre CRC diagnosis. Adjusted hazard ratios (HR) with 95% confidence intervals (CI) were estimated using Cox proportional hazards models adjusted for age, sex, stage, grade, site, comorbidities, year of diagnosis, and insulin, aspirin or statin exposure. Analyses were repeated stratifying by stage and site. Results: 5,617 patients with stage I-IV CRC were identified, of whom 369 received a prescription for metformin or a sulfonylurea in the 90 days pre diagnosis (median follow-up 1.6 years; MET: n=257; SUL: n=112). In adjusted analyses metformin exposure was associated with a 28% lower risk of all-cause mortality relative to sulfonylurea exposure (HR 0.72, 95% CI 0.53-0.98) and a non-significant 24% reduction in CRC-specific mortality (HR 0.76, 95% CI 0.52-1.13). In analyses stratified by site, in colon cancer, metformin exposure was associated with a significant one-third reduction in all-cause mortality (HR 0.66, 95% CI 0.46-0.95) and a non-significant reduction in site-specific mortality (HR 0.64, 95% CI 0.40-1.02). No mortality benefit was observed for rectal cancer. The association between metformin exposure and reduced mortality was strongest for stage I/II disease (all-cause mortality: HR 0.56, 95% CI 0.32-0.98; CRC-specific mortality: HR 0.48, 95% CI 0.21-1.11). Conclusions: Pre-diagnosis metformin exposure in CRC patients was associated with a significant reduction in mortality relative to sulfonylurea exposure. This benefit was greatest in patients with colon cancer and early stage disease.

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Association between Phenotypic Age and Mortality in Patients with Multivessel Coronary Artery Disease

Disease Markers ◽

10.1155/2022/4524032 ◽

2022 ◽

Vol 2022 ◽

pp. 1-11

Author(s):

Qiong Ma ◽

Bo-Lin Li ◽

Lei Yang ◽

Miao Zhang ◽

Xin-Xin Feng ◽

...

Keyword(s):

Coronary Artery Disease ◽

Mortality Risk ◽

Proportional Hazards ◽

Roc Curves ◽

Cox Proportional Hazards ◽

Biological Aging ◽

Multivessel Coronary Artery Disease ◽

All Cause Mortality ◽

Artery Disease

Background. Chronological age (CA) is not a perfect proxy for the true biological aging status of the body. A new biological aging measure, phenotypic age (PhenoAge), has been shown to capture morbidity and mortality risk in the general US population and diverse subpopulations. This study was aimed at evaluating the association between PhenoAge and long-term outcome of patients with multivessel coronary artery disease (CAD). Methods. A total of 609 multivessel CAD patients who received PCI attempt and with follow-up were enrolled. The clinical outcome was all-cause mortality on follow-up. PhenoAge was calculated using an equation constructed from CA and 9 clinical biomarkers. Cox proportional hazards regression models and receiver operating characteristic (ROC) curves were performed to evaluate the association between PhenoAge and mortality. Results. Overall, patients with more diseases had older PhenoAge and phenotypic age acceleration (PhenoAgeAccel). After a median follow-up of 33.5 months, those with positive PhenoAgeAccel had a significantly higher incidence of all-cause mortality ( P = 0.001 ). After adjusting for CA, Cox proportional hazards models showed that both PhenoAge and PhenoAgeAccel were significantly associated with all-cause mortality. Even after further adjusting for confounding factors, each 10-year increase in PhenoAge was also associated with a 51% increased mortality risk. ROC curves revealed that PhenoAge, with an area under the curve of 0.705, significantly outperformed CA, the individual clinical chemistry measure, and other risk factors. When reexamining the ROC curves using various combinations of variables, we found that PhenoAge provides additional predictive power to all models. Conclusions. In conclusion, PhenoAge was strongly associated with all-cause mortality even after adjusting for CA. Our findings suggest that PhenoAge measure may be complementary in predicting mortality risk for patients with multivessel CAD.

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Associations Between Anemia, Cognitive Impairment, and All-Cause Mortality in Oldest-Old Adults: A Prospective Population-Based Cohort Study

Frontiers in Medicine ◽

10.3389/fmed.2021.613426 ◽

2021 ◽

Vol 8 ◽

Author(s):

Jia Wangping ◽

Han Ke ◽

Wang Shengshu ◽

Song Yang ◽

Yang Shanshan ◽

...

Keyword(s):

Cohort Study ◽

Cognitive Impairment ◽

Mortality Risk ◽

Proportional Hazards ◽

Oldest Old ◽

Population Based ◽

Cox Proportional Hazards ◽

Risk Of Mortality ◽

Increased Risk ◽

All Cause Mortality

Objective: To evaluate the combined effects of anemia and cognitive function on the risk of all-cause mortality in oldest-old individuals.Design: Prospective population-based cohort study.Setting and Participants: We included 1,212 oldest-old individuals (men, 416; mean age, 93.3 years).Methods: Blood tests, physical examinations, and health questionnaire surveys were conducted in 2012 were used for baseline data. Mortality was assessed in the subsequent 2014 and 2018 survey waves. Cox proportional hazards models were used to evaluate anemia, cognitive impairment, and mortality risk. We used restricted cubic splines to analyze and visualize the association between hemoglobin (Hb) levels and mortality risk.Results: A total of 801 (66.1%) deaths were identified during the 6-year follow-up. We noted a significant association between anemia and mortality (hazard ratio [HR] 1.32, 95% confidence interval [CI] 1.14–1.54) after adjusting for confounding variables. We also observed a dose-response relationship between the severity of anemia and mortality (P < 0.001). In the restricted cubic spline models, Hb levels had a reverse J-shaped association with mortality risk (HR 0.88, 95% CI 0.84–0.93 per 10 g/L-increase in Hb levels below 130 g/L). The reverse J-shaped association persisted in individuals without cognitive impairment (HR 0.88, 95% CI 0.79–0.98 per 10 g/L-increase in Hb levels below 110 g/L). For people with cognitive impairment, Hb levels were inversely associated with mortality risk (HR 0.83, 95% CI 0.78–0.89 per 10 g/L-increase in Hb levels below 150 g/L). People with anemia and cognitive impairment had the highest risk of mortality (HR 2.60, 95% CI 2.06–3.27).Conclusion: Our results indicate that anemia is associated with an increased risk of mortality in oldest-old people. Cognitive impairment modifies the association between Hb levels and mortality.

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Physical activity and risk of cardiovascular events and all-cause mortality among kidney transplant recipients

Nephrology Dialysis Transplantation ◽

10.1093/ndt/gfaa038 ◽

2020 ◽

Vol 35 (8) ◽

pp. 1436-1443

Author(s):

Augustine W Kang ◽

Andrew G Bostom ◽

Hongseok Kim ◽

Charles B Eaton ◽

Reginald Gohh ◽

...

Keyword(s):

Physical Activity ◽

Kidney Transplant ◽

Proportional Hazards ◽

Controlled Trial ◽

Cox Proportional Hazards ◽

Transplant Recipients ◽

Kidney Transplant Recipients ◽

Cvd Risk ◽

All Cause Mortality ◽

Cvd Mortality

Abstract Background Insufficient physical activity (PA) may increase the risk of all-cause mortality and cardiovascular disease (CVD) morbidity and mortality among kidney transplant recipients (KTRs), but limited research is available. We examine the relationship between PA and the development of CVD events, CVD death and all-cause mortality among KTRs. Methods A total of 3050 KTRs enrolled in an international homocysteine-lowering randomized controlled trial were examined (38% female; mean age 51.8 ± 9.4 years; 75% white; 20% with prevalent CVD). PA was measured at baseline using a modified Yale Physical Activity Survey, divided into tertiles (T1, T2 and T3) from lowest to highest PA. Kaplan–Meier survival curves were used to graph the risk of events; Cox proportional hazards regression models examined the association of baseline PA levels with CVD events (e.g. stroke, myocardial infarction), CVD mortality and all-cause mortality over time. Results Participants were followed up to 2500 days (mean 3.7 ± 1.6 years). The cohort experienced 426 CVD events and 357 deaths. Fully adjusted models revealed that, compared to the lowest tertile of PA, the highest tertile experienced a significantly lower risk of CVD events {hazard ratio [HR] 0.76 [95% confidence interval (CI) 0.59–0.98]}, CVD mortality [HR 0.58 (95% CI 0.35–0.96)] and all-cause mortality [HR 0.76 (95% CI 0.59–0.98)]. Results were similar in unadjusted models. Conclusions PA was associated with a reduced risk of CVD events and all-cause mortality among KTRs. These observed associations in a large, international sample, even when controlling for traditional CVD risk factors, indicate the potential importance of PA in reducing CVD and death among KTRs.

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Joint associations of accelerometer-measured physical activity and sedentary time with all-cause mortality: a harmonised meta-analysis in more than 44 000 middle-aged and older individuals

British Journal of Sports Medicine ◽

10.1136/bjsports-2020-103270 ◽

2020 ◽

Vol 54 (24) ◽

pp. 1499-1506

Author(s):

Ulf Ekelund ◽

Jakob Tarp ◽

Morten W Fagerland ◽

Jostein Steene Johannessen ◽

Bjørge H Hansen ◽

...

Keyword(s):

Physical Activity ◽

Proportional Hazards ◽

Sedentary Time ◽

Meta Analysis ◽

Cox Proportional Hazards ◽

Older Individuals ◽

Risk Of Death ◽

All Cause Mortality ◽

Reported Data ◽

Joint Associations

ObjectivesTo examine the joint associations of accelerometer-measured physical activity and sedentary time with all-cause mortality.MethodsWe conducted a harmonised meta-analysis including nine prospective cohort studies from four countries. 44 370 men and women were followed for 4.0 to 14.5 years during which 3451 participants died (7.8% mortality rate). Associations between different combinations of moderate-to-vigorous intensity physical activity (MVPA) and sedentary time were analysed at study level using Cox proportional hazards regression analysis and summarised using random effects meta-analysis.ResultsAcross cohorts, the average time spent sedentary ranged from 8.5 hours/day to 10.5 hours/day and 8 min/day to 35 min/day for MVPA. Compared with the referent group (highest physical activity/lowest sedentary time), the risk of death increased with lower levels of MVPA and greater amounts of sedentary time. Among those in the highest third of MVPA, the risk of death was not statistically different from the referent for those in the middle (16%; 95% CI 0.87% to 1.54%) and highest (40%; 95% CI 0.87% to 2.26%) thirds of sedentary time. Those in the lowest third of MVPA had a greater risk of death in all combinations with sedentary time; 65% (95% CI 1.25% to 2.19%), 65% (95% CI 1.24% to 2.21%) and 263% (95% CI 1.93% to 3.57%), respectively.ConclusionHigher sedentary time is associated with higher mortality in less active individuals when measured by accelerometry. About 30–40 min of MVPA per day attenuate the association between sedentary time and risk of death, which is lower than previous estimates from self-reported data.

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