scholarly journals Occupational inequalities in mortality in South Korea using nationally representative mortality follow-up data from the late 2000s and after

2021 ◽  
Author(s):  
Eunjeong Noh ◽  
Young-Ho Khang
Keyword(s):  
Cox Regression ◽  
International Studies ◽  
Occupational Class ◽  
Cox Regression Analysis ◽  
Health And Nutrition ◽  
Hazard Ratios ◽  
Nationally Representative ◽  
External Causes ◽  
Mortality Estimates ◽  
Mortality Inequality

Abstract Many Korean and international studies have found higher mortality and poorer health conditions among manual workers than among non-manual workers. However, a recent study using unlinked data argued that since the economic crisis in Korea in the late 2000s, the mortality estimates of male Korean non-manual workers have been higher than those of manual workers. Our work using individually linked data from the late 2000s and after aimed to examine mortality inequality by occupational class. We analyzed Korea National Health and Nutrition Examination Survey data that were individually linked to cause-of-death data. Cox regression analysis was used to identify the hazard ratios for mortality by occupational class. Of 11,766 men aged between 35 and 64, 397 died between 2007 and 2018: 142 died from cancer, 68 from cardiovascular diseases, 88 from external causes, and 99 from other causes. After controlling for age, the mortality estimates for manual workers were 1.85 times higher than those for upper non-manual workers (P < 0.05). We observed no evidence of reversed mortality inequality among occupational classes in Korea since the 2000s; this previously reported finding might have been due to numerator-denominator bias arising from the use of unlinked data.

Association between selenium intake, diabetes, and mortality in adults: findings from National Health and Nutrition Examination Survey (NHANES) 2003-2014

2021 ◽  
pp. 1-24
Author(s):  
Bushra Hoque ◽  
Zumin Shi
Keyword(s):  
National Health ◽  
Cox Regression ◽  
Inverse Association ◽  
Nutrition Examination Survey ◽  
Health And Nutrition ◽  
Hazard Ratios ◽  
The Us ◽  
All Cause Mortality ◽  
Cvd Mortality

Abstract Selenium (Se) is a trace mineral that has antioxidant and anti-inflammatory properties. This study aimed to investigate the association between Se intake, diabetes, all-cause and cause-specific mortality in a representative sample of US adults. Data from 18,932 adults who attended the 2003-2014 National Health and Nutrition Examination Survey (NHANES) were analysed. Information on mortality was obtained from the US mortality registry updated to 2015. Multivariable logistic regression and Cox regression were used. Cross-sectionally, Se intake was positively associated with diabetes. Comparing extreme quartiles of Se intake, the odds ratio (OR) for diabetes was 1.44 (95% CI: 1.09–1.89). During a mean of 6.6 years follow-up, there were 1627 death (312 CVD, 386 cancer). High intake of Se was associated with a lower risk of all-cause mortality. When comparing the highest with the lowest quartiles of Se intake, the hazard ratios (HRs) for all-cause, CVD mortality, cancer mortality and other mortality were: 0.77 (95% CI 0.59-1.01), 0.62 (95% CI, 0.35-1.13), 1.42 (95% CI, 0.78-2.58) and 0.60 (95% CI,0.40-0.80), respectively. The inverse association between Se intake and all-cause mortality was only found among white participants. In conclusion, Se intake was positively associated with diabetes but inversely associated with all-cause mortality. There was no interaction between Se intake and diabetes in relation to all-cause mortality.

Association of Systolic and Diastolic Blood Pressure With All-Cause Mortality Among Community-Dwelling Older Adults: A Prospective Observational Study

2021 ◽  
pp. 089826432110552
Author(s):  
Qian Lian ◽  
Tazeen H. Jafar ◽  
John C. Allen ◽  
Stefan Ma ◽  
Rahul Malhotra
Keyword(s):  
Blood Pressure ◽  
Older Adults ◽  
Diastolic Blood Pressure ◽  
Mortality Risk ◽  
Cox Regression ◽  
Community Dwelling ◽  
Representative Study ◽  
Hazard Ratios ◽  
Nationally Representative ◽  
Community Dwelling Older Adults

Objectives To assess the association of systolic blood pressure (SBP) and diastolic blood pressure (DBP) with mortality among older adults in Singapore. Methods Association of SBP and DBP measured in 2009 for 4443 older adults (69.5±7.4 years; 60–97 years) participating in a nationally representative study with mortality risk through end-December 2015 was assessed using Cox regression. Results Higher mortality risk was observed at the lower and upper extremes of SBP and DBP. With SBP of 100–119 mmHg as the reference, multivariable mortality hazard ratios [HRs (95% confidence interval)] were SBP <100 mmHg: 2.41 (1.23–4.72); SBP 160–179 mmHg: 1.51 (1.02–2.22); and SBP ≥180 mmHg: 1.78 (1.12–2.81). With DBP of 70–79 mmHg as the reference, HRs were DBP <50 mmHg: 2.41 (1.28–4.54) and DBP ≥110 mmHg: 2.16 (1.09–4.31). Discussion Management of high blood pressure among older adults will likely reduce their mortality risk. However, the association of excessively low SBP and DBP values with mortality risk needs further evaluation.

Abstract 3230: Elevated Glucose and Mortality in Patients Hospitalized with Heart Failure

Circulation ◽  
2008 ◽  
Vol 118 (suppl_18) ◽  
Author(s):  
Mikhail Kosiborod ◽  
Silvio Inzucchi ◽  
John A Spertus ◽  
Yongfei Wang ◽  
Frederick A Masoudi ◽  
...  
Keyword(s):  
Heart Failure ◽  
Cox Regression ◽  
Linear Trend ◽  
Adverse Outcomes ◽  
Entire Cohort ◽  
Hazard Ratios ◽  
Elevated Glucose ◽  
Nationally Representative ◽  
Support Resource ◽  
The Impact

Background: While some professional societies recommend target-driven blood glucose (BG) control for all hospitalized patients, the association between elevated BG and adverse outcomes has not been well established in patients hospitalized with heart failure (HF). Methods: We evaluated a nationally representative cohort of 50,532 patients hospitalized with HF between 04/1998 – 06/2001. Admission BG was analyzed as a categorical variable (≤110, >110 –140, >140 –170, >170 –200, >200 mg/dL), and in 10 mg/dL increments. The association between BG and all-cause mortality over 30 days and 1 year was analyzed using Cox regression, both in the entire cohort and in patients with and without diabetes (DM). Results: After multivariable adjustment, there was no significant relationship between BG and 30-day mortality (for BG >110 to 140, >140 to 170, >170 to 200, and >200, hazard ratios and 95% confidence intervals were: 1.09 (0.98 –1.22), 1.27 (1.11–1.45), 1.16 (0.98–1.37), 1.00 (0.87–1.15) respectively vs. BG ≤110, P for linear trend 0.53). Results were similar for 1-year mortality, and did not differ between patients with and without DM (P values for DM*BG interaction 0.11 and 0.55 for 30-day and 1-year mortality respectively). A lack of association between BG and mortality over 30-days and 1-year was also observed when BG was analyzed in 10mg/dL increments (Figure ). Conclusions: We found no significant association between BG and mortality in a large cohort of hospitalized HF patients. While the impact of BG lowering on outcomes cannot be determined based on this study, our findings do not support resource-intensive interventions for BG monitoring and management in this patient group.

Abstract TP431: Association of Systolic Blood Pressure and Cardiovascularrisk According to Hemoglobin Concentration

Stroke ◽  
2020 ◽  
Vol 51 (Suppl_1) ◽  
Author(s):  
Jun Young Chang ◽  
Se Young Jang ◽  
Sun-uck Kwon
Keyword(s):  
Blood Pressure ◽  
Cardiovascular Risk ◽  
Systolic Blood Pressure ◽  
Cox Regression ◽  
Hemoglobin Concentration ◽  
Cardiovascular Death ◽  
Normal Range ◽  
Cox Regression Analysis ◽  
Hazard Ratios ◽  
Hb Concentration

Introduction: We evaluated whether the optimal cutoff of blood pressure to reduce cardiovascular risk is different according to hemoglobin (Hb) concentration and its changing pattern using the National Health Insurance Service-Health Screening Cohort. Methods: The study population consisted of individuals who underwent both 2002-2003 and 2004-2005 health examinations. Individuals who were diagnosed with cardiovascular disease or who died before index date of 1 January 2006 were excluded. The primary outcome of the study was the association between systolic blood pressure (SBP) and MACE (composite of myocardial infarction, stroke, and cardiovascular death) according to Hb concentration. Hazard ratios (HR) were calculated using Cox regression analysis adjusted for age and sex. Results: A total of 290573 were included in the analysis. During the follow up period from 1 January 2006 to 31 December 2013, a total of 18292 experienced MACE. There was a significant interaction between SBP and Hb concentration with regard to cardiovascular diseases (p for interaction= 0.07). Among the subjects with Hb <10, a significant increment of MACE was observed when SBP ≥140 mmHg. HR for MACE increased when SBP ≥130mmHg among the subjects with 10≤ Hb <11 and 11≤ Hb <12. HR for MACE increased when SBP ≥ 120 mmHg among the subjects with 12≤ Hb <13, 13≤ Hb <15, and 15≤ Hb. Cardiovascular risk was the lowest in SBP below 120mmHg and cut off value for increasing cardiovascular risk was 120 mmHg or above in subjects who maintain normal range of hemoglobin level and whose hemoglobin concentration changed from anemia to normal range. However, individuals who maintain anemic state and whose hemoglobin concentration changed from normal range to anemia, SBP threshold for increasing cardiovascular risk was equal or above 130 mmHg . Conclusion: The threshold of SBP which increases cardiovascular risk may be different according to the hemoglobin concentration and change pattern of hemoglobin.

Serum neurofilament light chain in pediatric MS and other acquired demyelinating syndromes

Neurology ◽  
2019 ◽  
Vol 93 (10) ◽  
pp. e968-e974 ◽  
Author(s):  
Yu Yi M. Wong ◽  
Arlette L. Bruijstens ◽  
Christian Barro ◽  
Zuzanna Michalak ◽  
Marie-José Melief ◽  
...  
Keyword(s):  
Light Chain ◽  
Cox Regression ◽  
Geometric Mean ◽  
Acute Disseminated Encephalomyelitis ◽  
Oligoclonal Bands ◽  
Neurofilament Light Chain ◽  
Neurofilament Light ◽  
Cox Regression Analysis ◽  
Hazard Ratios ◽  
Definite Multiple Sclerosis

ObjectiveTo explore the correlation between serum and CSF neurofilament light chain (NfL) and the association of NfL levels and future disease activity in pediatric patients with a first attack of acquired demyelinating syndromes (ADS).MethodsIn total, 102 children <18 years with a first attack of CNS demyelination and 23 age-matched controls were included. Clinically definite multiple sclerosis (CDMS) was set as an endpoint for analysis. CSF NfL was tested by the commercially available ELISA (UmanDiagnostics); serum NfL (sNfL) was tested with a Simoa assay. Hazard ratios (HR) were calculated with Cox regression analysis.ResultsOf the 102 patients, 47 (46%) were tested for CSF NfL. CSF and serum NfL correlated significantly in the total group (ρ 0.532, p < 0.001) and even more significantly in the subgroup of patients with future CDMS diagnosis (ρ 0.773, p < 0.001). sNfL was higher in patients than in controls (geometric mean 6.1 pg/mL, p < 0.001), and was highest in ADS presenting with encephalopathy (acute disseminated encephalomyelitis, n = 28, 100.4 pg/mL), followed by patients without encephalopathy (ADS−) with future CDMS diagnosis (n = 40, 32.5 pg/mL), and ADS− who remained monophasic (n = 34, 17.6 pg/mL). sNfL levels higher than a median of 26.7 pg/mL at baseline are associated with a shorter time to CDMS diagnosis in ADS− (p = 0.045). HR for CDMS diagnosis was 1.09 for each 10 pg/mL increase of sNfL, after correction for age, oligoclonal bands, and MRI measures (p = 0.012).ConclusionThe significant correlation between CSF and serum NfL strengthens its reliability as a peripheral marker of neuroaxonal damage. Higher sNfL levels at baseline were associated with higher probability of future CDMS diagnosis in ADS−.

Headache as a risk factor for dementia: A prospective population-based study

Cephalalgia ◽  
2013 ◽  
Vol 34 (5) ◽  
pp. 327-335 ◽  
Author(s):  
Knut Hagen ◽  
Eystein Stordal ◽  
Mattias Linde ◽  
Timothy J Steiner ◽  
John-Anker Zwart ◽  
...  
Keyword(s):  
Risk Factor ◽  
Cohort Study ◽  
Cox Regression ◽  
Subsequent Development ◽  
Population Based ◽  
Health Study ◽  
Cox Regression Analysis ◽  
Hazard Ratios ◽  
Increased Risk

Background Headache has not been established as a risk factor for dementia. The aim of this study was to determine whether any headache was associated with subsequent development of vascular dementia (VaD), Alzheimer’s disease (AD) or other types of dementia. Methods This prospective population-based cohort study used baseline data from the Nord-Trøndelag Health Study (HUNT 2) performed during 1995–1997 and, from the same Norwegian county, a register of cases diagnosed with dementia during 1997–2010. Participants aged ≥20 years who responded to headache questions in HUNT 2 were categorized (headache free; with any headache; with migraine; with nonmigrainous headache). Hazard ratios (HRs) for later inclusion in the dementia register were estimated using Cox regression analysis. Results Of 51,383 participants providing headache data in HUNT 2, 378 appeared in the dementia register during the follow-up period. Compared to those who were headache free, participants with any headache had increased risk of VaD ( n = 63) (multivariate-adjusted HR = 2.3, 95% CI 1.4–3.8, p = 0.002) and of mixed dementia (VaD and AD ( n = 52)) (adjusted HR = 2.0, 95% CI 1.1–3.5, p = 0.018). There was no association between any headache and later development of AD ( n = 180). Conclusion In this prospective population-based cohort study, any headache was a risk factor for development of VaD.

scholarly journals Mortality in Patients with Diabetic Foot Ulcers: Causes, Risk Factors, and Their Association with Evolution and Severity of Ulcer

2020 ◽  
Vol 9 (9) ◽  
pp. 3009
Author(s):  
José Antonio Rubio ◽  
Sara Jiménez ◽  
José Luis Lázaro-Martínez
Keyword(s):  
Diabetic Foot ◽  
Cox Regression ◽  
Foot Ulcers ◽  
Diabetic Foot Ulcers ◽  
Cox Regression Analysis ◽  
Kaplan Meier ◽  
Hazard Ratios ◽  
History Of

Background: This study reviews the mortality of patients with diabetic foot ulcers (DFU) from the first consultation with a Multidisciplinary Diabetic Foot Team (MDFT) and analyzes the main cause of death, as well as the relevant clinical factors associated with survival. Methods: Data of 338 consecutive patients referred to the MDFT center for a new DFU during the 2008–2014 period were analyzed. Follow-up: until death or until 30 April 2020, for up to 12.2 years. Results: Clinical characteristics: median age was 71 years, 92.9% had type 2 diabetes, and about 50% had micro-macrovascular complications. Ulcer characteristics: Wagner grade 1–2 (82.3%), ischemic (49.2%), and infected ulcers (56.2%). During follow-up, 201 patients died (59.5%), 110 (54.7%) due to cardiovascular disease. Kaplan—Meier curves estimated a reduction in survival of 60% with a 95% confidence interval (95% CI), (54.7–65.3) at 5 years. Cox regression analysis adjusted to a multivariate model showed the following associations with mortality, with hazard ratios (HRs) (95% CI): age, 1.07 (1.05–1.08); HbA1c value < 7% (53 mmol/mol), 1.43 (1.02–2.0); active smoking, 1.59 (1.02–2.47); ischemic heart or cerebrovascular disease, 1.55 (1.15–2.11); chronic kidney disease, 1.86 (1.37–2.53); and ulcer severity (SINBAD system) 1.12 (1.02–1.26). Conclusion: Patients with a history of DFU have high mortality. Two less known predictors of mortality were identified: HbA1c value < 7% (53 mmol/mol) and ulcer severity.

6116Thromboembolic risk in infection-related atrial fibrillation: is infection or atrial fibrillation the sinner?

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
A Gundlund ◽  
J B Olesen ◽  
J H Butt ◽  
M A Christensen ◽  
G H Gislason ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Hospital Admission ◽  
Cox Regression ◽  
Anticoagulation Therapy ◽  
First Year ◽  
Thromboembolic Events ◽  
Cox Regression Analysis ◽  
Hazard Ratios ◽  
Study Population ◽  
Hospital Contact

Abstract Introduction Infection-related atrial fibrillation (AF) has been associated with similar risk of thromboembolic events as AF without a concurrent infection. However, it is unknown whether the increased thromboembolic risk in this patient group is primarily associated with AF or with the infection. Purpose We compared type of infection and 1-year outcomes in patients with AF during an infection and in patients with infection without AF. Methods By crosslinking data from Danish nationwide registries, AF naïve patients admitted with an infection from 1996–2016 were identified. Patients with infection-related AF (defined as patients who developed AF during their hospital admission with infection) were matched 1:3 on age, calendar year, sex, and type of infection (gastrointestinal infection, pneumonia, urinary tract infection, sepsis, and other infections) with those who had infection without AF. Cumulative incidences of thromboembolic events were calculated using the Aalen Johansen estimator and adjusted hazard ratios (HR) of thromboembolic events and hospital contacts with AF were assessed by multivariable Cox regression analysis comparing those with infection-related AF with those with infection without AF. Results The study population comprised 30,711 patients with infection-related AF and 92,133 patients with infection without AF (median age 79 years [interquartile range 71–86] and 47.6% males in both groups). In general, patients with infection-related AF had more concurrent diseases than patients with infection without AF. During the first week after the hospital admission, 9.8% of the patients with infection-related AF and 0.1% of the patients with infection without AF initiated oral anticoagulation therapy. During the first year after the infection, 7.6% of patients with infection-related AF and 4.4% of patients with infection without AF had a thromboembolic event, while 36.1% and 1.8% had a new hospital-contact with AF. Cumulative incidences of thromboembolic events are depicted in the Figure. In the multivariable models, infection-related AF was associated with an increased 1-year risk of thromboembolic events and new hospital contacts with AF compared with infection without AF (HR 2.05, 95% confidence interval (CI) 1.94–2.17 for thromboembolic events and HR 26.06, 95% CI 24.72–27.48 for new AF episodes, respectively). Conclusion More than one third of patients with infection-related AF had a new hospital contact with AF during the first year after their infection. Further, infection-related AF was associated with a significantly increased 1-year risk of thromboembolic events compared with infection without AF. Consequently, this study suggests that AF begets AF, even if it presents during an infection. Acknowledgement/Funding None

scholarly journals Outcome and predictors for mortality in cardiogenic shock: a Dutch nationwide registry-based study of 75,407 patients with acute coronary syndrome treated by PCI

2021 ◽  
Vol 10 (Supplement_1) ◽  
Author(s):  
M Karami ◽  
WK Lagrand ◽  
S Houterman ◽  
CA Den Uil ◽  
AE Engstrom ◽  
...  
Keyword(s):  
Acute Coronary Syndrome ◽  
Cardiogenic Shock ◽  
Cox Regression ◽  
Coronary Intervention ◽  
Multivessel Disease ◽  
Cox Regression Analysis ◽  
Coronary Syndrome ◽  
Funding Sources ◽  
Nationwide Registry ◽  
Hazard Ratios

Abstract Funding Acknowledgements Type of funding sources: None. OnBehalf Netherlands Heart Registration Background It is important to gain more insight into cardiogenic shock (CS), as currently little is known on how to improve outcomes. The aim of this study was to assess the incidence, clinical outcome and predictors for mortality of CS in acute coronary syndrome (ACS) patients treated by percutaneous coronary intervention (PCI). Methods The Netherlands Heart Registration (NHR) is a nationwide registry on all cardiac interventions. We used NHR data of ACS patients treated with PCI between 2015 and 2019. CS was defined as shock present at admission. Cox regression analysis was used to calculate hazard ratios (HR) with 95% confidence intervals (CI). Results Among 75,407 ACS patients treated with PCI, 3,028 patients (4.1%) were identified with CS. The incidences of CS were respectively; 4.3%, 3.9%, 3.5% and 4.3% per year. Median follow-up duration was 9 months (IQR 0-26) for patients with CS and 22 months (IQR 12-36) for patients without CS. Thirty-day mortality was 36% for patient with CS and 3% for patients without CS (p &lt; 0.001). Factors independently associated with mortality in CS were: age (HR 1.02, 95%CI 1.02-1.03), estimated glomerular filtration rate (eGFR) (HR 0.98, 95%CI 0.98-0.99), diabetes mellitus (DM) (HR 1.25, 95%CI 1.08-1.45), multivessel disease (HR 1.22, 95%CI 1.06-1.39), prior myocardial infarction (MI) (HR 1.24, 95%CI 1.06-1.45) and out-of-hospital cardiac arrest (OHCA) (HR 1.71, 95%CI 1.50-1.94) (Table 1). Conclusion In this Dutch nationwide registry-based study of ACS patients treated by PCI, the incidence of CS was 4.1% over the 4-year study period. Predictors for mortality in CS were higher age, renal insufficiency, presence of DM, multivessel disease, prior MI and OHCA. Multivariable Cox regression analysisHR95% CIp-valueAge (years)1.021.02-1.03&lt;0.001MaleNSDiabetes mellitus1.251.08-1.45&lt;0.01Multivessel disease1.221.06-1.39&lt;0.01CTONSPrior MI1.241.06-1.45&lt;0.01Prior CABGNSeGFR (ml/min/1.73 m2)0.980.98-0.99&lt;0.001OHCA1.711.50-1.94&lt;0.001STEMINSIntervention yearNS

scholarly journals Incidence and Risk Factors for Amputation in Patients With Diabetes in Japan: A Historical Cohort Study Using a Nationwide Claims Database

2020 ◽  
Author(s):  
Masanori Kaneko ◽  
Kazuya Fujihara ◽  
Taeko Osawa ◽  
Masahiko Yamamoto ◽  
Mayuko Yamada Harada ◽  
...  
Keyword(s):  
Cox Regression ◽  
Historical Cohort ◽  
Cox Regression Analysis ◽  
Claims Database ◽  
Hazard Ratios ◽  
Patients With Diabetes ◽  
Mortality Predictors ◽  
Hba1c Levels

Abstract Background: Because amputation negatively affects the quality of life of patients with diabetes and increases the risk of cardiovascular events and mortality, predictors of amputation must be identified. However, no large cohort studies have been conducted regarding the incidence of amputation in patients with diabetes in East Asia.Methods: We analyzed data from a nationwide claims database in Japan accumulated from 2008–2016, involving 17,288 patients with diabetes aged 18–72 y (2942 women, mean age 50.2 y, HbA1c 7.2%).Results: The mean follow-up time was 5.3 years, and 16 amputations occurred (0.17/1000 person-years). Multivariate Cox regression analysis showed that age and HbA1c levels were independent predictors of amputation (hazard ratios [HRs], 1.09 and 1.43; 95% confidence intervals [CIs], 1.01–1.16 and 1.12–1.82, respectively). Compared with patients aged <60 y and with HbA1c <8%, the HR for patients aged ≥60 y and with HbA1c ≥8% was 32.1 (95% CI, 7.30–141.2).Conclusions: Improved glycemic control may lower amputation risk.

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