Abstract TMP112: Subsequent Hemorrhage in Children With Untreated Brain Arteriovenous Malformation: Higher Risk With Unbalanced Inflow and Outflow Angioarchitecture

Stroke ◽  
2017 ◽  
Vol 48 (suppl_1) ◽  
Author(s):  
Li Ma ◽  
Yu Chen ◽  
Yuanli Zhao
Keyword(s):  
Risk Factors ◽  
Proportional Hazards ◽  
Multivariable Analysis ◽  
Venous Drainage ◽  
Cox Proportional Hazards ◽  
Arteriovenous Shunt ◽  
Increased Risk ◽  
Potential Risk Factors ◽  
Venous Ectasia

Instruction: Children with brain arteriovenous malformations (bAVM) are at risk of life-threatening hemorrhage in their early lives. Our aim was to analyze various angiographic features of bAVM in conjunction with other morphological risk factors to predict the risk of subsequent hemorrhage during follow-up in children. Methods: We identified all consecutive children admitted to our institution for bAVMs between July 2009 and September 2015. Children with at least 1 month of treatment-free follow-up after diagnosis were included in further analysis. The effects of bAVM features on hemorrhagic presentation were studied. Annual rates of AVM rupture as well as several potential risk factors for subsequent hemorrhage were analyzed using Kaplan-Meier analyses and Cox proportional hazards regression models. Results: We identified 110 patients with a mean follow-up period of 2.1 years (range, 1 month-15.4 years). The average annual risk of hemorrhage from untreated AVMs was 4.3%. Risk factors predicting hemorrhagic presentation in multivariable analysis were no generalized venous ectasia, deep venous drainage, fast arteriovenous shunt, and deep location. No generalized venous ectasia in conjunction with fast arteriovenous shunt was predictive of subsequent hemorrhage (RR, 7.55; 95%CI, 1.96-29.06). The annual rupture risk was 11.1% in bAVMs without generalized venous ectasia but with fast arteriovenous shunt. Conclusions: bAVM angiographic features suggesting unbalanced inflow and outflow might be helpful to identify children at higher risk for hemorrhage. No generalized venous ectasia and fast artriovenous shunt might be associated with an increased risk for hemorrhagic presentation and subsequent hemorrhage in pediatric patients with untreated bAVM.

Hemorrhage From Arteriovenous Malformations During Pregnancy

Neurosurgery ◽  
2012 ◽  
Vol 71 (2) ◽  
pp. 349-356 ◽  
Author(s):  
Bradley A. Gross ◽  
Rose Du
Keyword(s):  
Proportional Hazards ◽  
Proportional Hazards Model ◽  
Venous Drainage ◽  
Cox Proportional Hazards ◽  
Hazard Ratio ◽  
Cox Proportional Hazards Model ◽  
Relative Paucity ◽  
Increased Risk ◽  
Risk Of Hemorrhage

Abstract BACKGROUND: Previous hemorrhage, deep venous drainage, and deep location are established risk factors for arteriovenous malformation (AVM) hemorrhage. Although pregnancy is an assumed risk factor, there is a relative paucity of data to support this neurosurgical tenet. OBJECTIVE: To elucidate the hemorrhage rate of AVMs during pregnancy. METHODS: We reviewed the records of 54 women with an angiographic diagnosis of an AVM at our institution. Annual hemorrhage rates were calculated as the ratio of the number of bleeds to total number of patient-years of follow-up. Patient-years of follow-up were tallied assuming lesion presence from birth until AVM obliteration. The Cox proportional hazards model for hemorrhage with pregnancy as the time-dependent variable was used to calculate the hazard ratio. RESULTS: Five hemorrhages in 4 patients occurred over 62 pregnancies, yielding a hemorrhage rate of 8.1% per pregnancy or 10.8% per year. Over the remaining 2461.3 patient-years of follow-up, only 28 hemorrhages occurred, yielding an annual hemorrhage rate of 1.1%. The hazard ratio for hemorrhage during pregnancy was 7.91 (P = 2.23 × 10−4), increasing to 18.12 (P = 7.31 × 10−5) when limiting the analysis to patient follow-up up to age 40. CONCLUSION: Because of the increased risk of hemorrhage from AVMs during pregnancy, we recommend intervention in women who desire to bear children, particularly if the AVM has bled. If the AVM is discovered during pregnancy, we recommend early intervention if it has ruptured; if it is unruptured, we recommend comprehensive counseling, weighing risks of intervention against continuation of pregnancy without intervention.

scholarly journals Menopausal Vasomotor Symptoms and Risk of Incident Cardiovascular Disease Events in SWAN

2021 ◽  
Vol 10 (3) ◽  
Author(s):  
Rebecca C. Thurston ◽  
Helen E. Aslanidou Vlachos ◽  
Carol A. Derby ◽  
Elizabeth A. Jackson ◽  
Maria Mori Brooks ◽  
...  
Keyword(s):  
Risk Factors ◽  
Cardiovascular Disease ◽  
Proportional Hazards ◽  
Reproductive Factors ◽  
Cox Proportional Hazards ◽  
Vasomotor Symptoms ◽  
Cvd Risk Factors ◽  
Cvd Risk ◽  
Increased Risk

Background Cardiovascular disease (CVD) in women has unique features, including associations with reproductive factors that are incompletely understood. Vasomotor symptoms (VMS), the classic menopausal symptom, are linked to CVD risk factors and subclinical CVD. Evidence linking VMS to CVD events is limited. We tested whether frequent and/or persistent VMS were associated with increased risk for fatal and nonfatal CVD events in SWAN (Study of Women’s Health Across the Nation). Methods and Results A total of 3083 women, aged 42 to 52 years at baseline, underwent up to 16 in‐person visits over 22 years. Assessments included questionnaires on VMS frequency (0, 1–5, or ≥6 days/2 weeks), physical measures, phlebotomy, and reported CVD events (myocardial infarction, stroke, heart failure, and revascularization). A subset of events was adjudicated via medical record. Death certificates were obtained. Relationships between baseline VMS or persistent VMS over the follow‐up (proportion of visits with frequent VMS) with combined incident nonfatal and fatal CVD were tested in Cox proportional hazards models adjusted for demographics, medication use, and CVD risk factors. Participants experienced 231 CVD events over the follow‐up. Women with frequent baseline VMS had an elevated risk of subsequent CVD events (relative to no VMS; ≥6 days: hazard ratio [HR] [95% CI], 1.51 [1.05–2.17], P =0.03; 1–5 days: HR [95% CI], 1.02 [0.75–1.39], P =0.89, multivariable). Women with frequent VMS that persisted over time also had an increased CVD event risk (>33% versus ≤33% of visits: HR [95% CI], 1.77 [1.33–2.35], P <0.0001, multivariable). Conclusions Frequent and persistent VMS were associated with increased risk of later CVD events. VMS may represent a novel female‐specific CVD risk factor.

scholarly journals Elevated plasma growth and differentiation factor 15 predicts incident anemia in older adults aged 60 years and older

2020 ◽  
Author(s):  
Yuko Yamaguchi ◽  
Marta Zampino ◽  
Toshiko Tanaka ◽  
Stefania Bandinelli ◽  
Yusuke Osawa ◽  
...  
Keyword(s):  
Older Adults ◽  
Proportional Hazards ◽  
Proportional Hazards Model ◽  
Cox Proportional Hazards ◽  
Cox Proportional Hazards Model ◽  
Differentiation Factor ◽  
Hazards Model ◽  
Increased Risk ◽  
The Relationship

Abstract Background Anemia is common in older adults and associated with greater morbidity and mortality. The causes of anemia in older adults have not been completely characterized. Although elevated circulating growth and differentiation factor 15 (GDF-15) has been associated with anemia in older adults, it is not known whether elevated GDF-15 predicts the development of anemia. Methods We examined the relationship between plasma GDF-15 concentrations at baseline in 708 non-anemic adults, aged 60 years and older, with incident anemia during 15 years of follow-up among participants in the Invecchiare in Chianti (InCHIANTI) Study. Results During follow-up, 179 (25.3%) participants developed anemia. The proportion of participants who developed anemia from the lowest to highest quartile of plasma GDF-15 was 12.9%, 20.1%, 21.2%, and 45.8%, respectively. Adults in the highest quartile of plasma GDF-15 had an increased risk of developing anemia (Hazards Ratio 1.15, 95% Confidence Interval 1.09, 1.21, P&lt;.0001) compared to those in the lower three quartiles in a multivariable Cox proportional hazards model adjusting for age, sex, serum iron, soluble transferrin receptor, ferritin, vitamin B12, congestive heart failure, diabetes mellitus, and cancer. Conclusions Circulating GDF-15 is an independent predictor for the development of anemia in older adults.

scholarly journals Sex-Specific Associations between Blood Pressure and Risk of Atrial Fibrillation Subtypes in the Tromsø Study

2021 ◽  
Vol 10 (7) ◽  
pp. 1514
Author(s):  
Hilde Espnes ◽  
Jocasta Ball ◽  
Maja-Lisa Løchen ◽  
Tom Wilsgaard ◽  
Inger Njølstad ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Blood Pressure ◽  
Proportional Hazards ◽  
Cox Proportional Hazards ◽  
Pressure Management ◽  
Reference Models ◽  
Proportional Hazards Regression ◽  
Hazard Ratios ◽  
Increased Risk

The aim of this study was to explore sex-specific associations between systolic blood pressure (SBP), hypertension, and the risk of incident atrial fibrillation (AF) subtypes, including paroxysmal, persistent, and permanent AF, in a general population. A total of 13,137 women and 11,667 men who participated in the fourth survey of the Tromsø Study (1994–1995) were followed up for incident AF until the end of 2016. Cox proportional hazards regression analysis was conducted using fractional polynomials for SBP to provide sex- and AF-subtype-specific hazard ratios (HRs) for SBP. An SBP of 120 mmHg was used as the reference. Models were adjusted for other cardiovascular risk factors. Over a mean follow-up of 17.6 ± 6.6 years, incident AF occurred in 914 (7.0%) women (501 with paroxysmal/persistent AF and 413 with permanent AF) and 1104 (9.5%) men (606 with paroxysmal/persistent AF and 498 with permanent AF). In women, an SBP of 180 mmHg was associated with an HR of 2.10 (95% confidence interval [CI] 1.60–2.76) for paroxysmal/persistent AF and an HR of 1.80 (95% CI 1.33–2.44) for permanent AF. In men, an SBP of 180 mmHg was associated with an HR of 1.90 (95% CI 1.46–2.46) for paroxysmal/persistent AF, while there was no association with the risk of permanent AF. In conclusion, increasing SBP was associated with an increased risk of both paroxysmal/persistent AF and permanent AF in women, but only paroxysmal/persistent AF in men. Our findings highlight the importance of sex-specific risk stratification and optimizing blood pressure management for the prevention of AF subtypes in clinical practice.

scholarly journals Association of oral contraceptives and tubal ligation with risk of early natural menopause

2021 ◽  
Author(s):  
C R Langton ◽  
B W Whitcomb ◽  
A C Purdue-Smithe ◽  
L L Sievert ◽  
S E Hankinson ◽  
...  
Keyword(s):  
Oral Contraceptives ◽  
Proportional Hazards ◽  
Reproductive Factors ◽  
Cox Proportional Hazards ◽  
Tubal Ligation ◽  
Health Study ◽  
Early Menopause ◽  
Natural Menopause ◽  
Increased Risk

Abstract STUDY QUESTION What is the association of oral contraceptives (OCs) and tubal ligation (TL) with early natural menopause? SUMMARY ANSWER We did not observe an association of OC use with risk of early natural menopause; however, TL was associated with a modestly higher risk. WHAT IS KNOWN ALREADY OCs manipulate hormone levels, prevent ovulation, and may modify the rate of follicular atresia, while TL may disrupt the blood supply to the ovaries. These mechanisms may be associated with risk of early menopause, a condition associated with increased risk of cardiovascular disease and other adverse health outcomes. STUDY DESIGN, SIZE, DURATION We examined the association of OC use and TL with natural menopause before the age of 45 years in a population-based study within the prospective Nurses’ Health Study II (NHSII) cohort. Participants were followed from 1989 to 2017 and response rates were 85-90% for each cycle. PARTICIPANTS/MATERIALS, SETTING, METHODS Participants included 106 633 NHSII members who were premenopausal and aged 25-42 years at baseline. Use, duration and type of OC, and TL were measured at baseline and every 2 years. Menopause status and age were assessed every 2 years. Follow-up continued until early menopause, age 45 years, hysterectomy, oophorectomy, death, cancer diagnosis, or loss to follow-up. We used Cox proportional hazards models to estimate hazard ratios (HRs) and 95% CIs adjusted for lifestyle, dietary, and reproductive factors. MAIN RESULTS AND THE ROLE OF CHANCE Over 1.6 million person-years, 2579 members of the analytic cohort experienced early natural menopause. In multivariable models, the duration, timing, and type of OC use were not associated with risk of early menopause. For example, compared with women who never used OCs, those reporting 120+ months of OC use had an HR for early menopause of 1.01 (95% CI, 0.87-1.17; P for trend=0.71). TL was associated with increased risk of early menopause (HR = 1.17, 95% CI, 1.06-1.28). LIMITATIONS, REASONS FOR CAUTION Our study population is homogenous with respect to race and ethnicity. Additional evaluation of these relations in more diverse populations is important. WIDER IMPLICATIONS OF THE FINDINGS To our knowledge, this is the largest study examining the association of OC use and TL with early natural menopause to date. While TL was associated with a modest higher risk of early menopause, our findings do not support any material hazard or benefit for the use of OCs. STUDY FUNDING/COMPETING INTEREST(S) The study was sponsored by UO1CA176726 and R01HD078517 from the National Institutes of Health and Department of Health and Human Services. The work was supported by the Intramural Research Program of the Eunice Kennedy Shriver National Institute of Child Health and Human Development. The authors have no competing interests to report. TRIAL REGISTRATION NUMBER N/A

The Efficacy of Etoposide-Based Therapy in Adult Secondary Hemophagocytic Lymphohistiocytosis

2021 ◽  
pp. 1-9
Author(s):  
Leonard Naymagon ◽  
Douglas Tremblay ◽  
John Mascarenhas
Keyword(s):  
Hemophagocytic Lymphohistiocytosis ◽  
Proportional Hazards ◽  
Multivariable Analysis ◽  
Cox Proportional Hazards ◽  
Rank Test ◽  
Kaplan Meier ◽  
Hazard Ratios ◽  
Significant Difference ◽  
The Impact

Data supporting the use of etoposide-based therapy in hemophagocytic lymphohistiocytosis (HLH) arise largely from pediatric studies. There is a lack of comparable data among adult patients with secondary HLH. We conducted a retrospective study to assess the impact of etoposide-based therapy on outcomes in adult secondary HLH. The primary outcome was overall survival. The log-rank test was used to compare Kaplan-Meier distributions of time-to-event outcomes. Multivariable Cox proportional hazards modeling was used to estimate adjusted hazard ratios (HRs) with 95% confidence intervals (CIs). Ninety adults with secondary HLH seen between January 1, 2009, and January 6, 2020, were included. Forty-two patients (47%) received etoposide-based therapy, while 48 (53%) received treatment only for their inciting proinflammatory condition. Thirty-three patients in the etoposide group (72%) and 32 in the no-etoposide group (67%) died during follow-up. Median survival in the etoposide and no-etoposide groups was 1.04 and 1.39 months, respectively. There was no significant difference in survival between the etoposide and no-etoposide groups (log-rank <i>p</i> = 0.4146). On multivariable analysis, there was no association between treatment with etoposide and survival (HR for death with etoposide = 1.067, 95% CI: 0.633–1.799, <i>p</i> = 0.8084). Use of etoposide-based therapy was not associated with improvement in outcomes in this large cohort of adult secondary HLH patients.

Air Pollution Is Associated with Cognitive Deterioration of Alzheimer’s Disease

Gerontology ◽  
2021 ◽  
pp. 1-9
Author(s):  
Feng Cheng Lin ◽  
Chih Yin Chen ◽  
Chung Wei Lin ◽  
Ming Tsang Wu ◽  
Hsuan Yu Chen ◽  
...  
Keyword(s):  
Risk Factors ◽  
Air Pollution ◽  
Social Engagement ◽  
Proportional Hazards ◽  
Cox Proportional Hazards ◽  
Rank Test ◽  
Cognitive Deterioration ◽  
Clinical Dementia Rating ◽  
Severe Stage ◽  
Increased Risk

<b><i>Introduction:</i></b> Dementia is one of the major causes of disability and dependency among older people worldwide. Alz­heimer’s disease (AD), the most common cause of dementia among the elderly, has great impact on the health-care system of developed nations. Several risk factors are suggestive of an increased risk of AD, including APOE-ε4, male, age, diabetes mellitus, hypertension, and low social engagement. However, data on risk factors of AD progression are limited. Air pollution is revealed to be associated with increasing dementia incidence, but the relationship between air pollution and clinical AD cognitive deterioration is unclear. <b><i>Methods:</i></b> We conducted a case-control and city-to-city study to compare the progression of AD patients in different level of air-polluted cities. Clinical data of a total of 704 AD patients were retrospectively collected, 584 residences in Kaohsiung and 120 residences in Pingtung between 2002 and 2018. An annual interview was performed with each patient, and the Clinical Dementia Rating score (0 [normal] to 3 [severe stage]) was used to evaluate their cognitive deterioration. Air pollution data of Kaohsiung and Pingtung city for 2002–2018 were retrieved from Taiwan Environmental Protection Administration. Annual Pollutant Standards Index (PSI) and concentrations of particulate matter (PM<sub>10</sub>), sulfur dioxide (SO<sub>2</sub>), ozone (O<sub>3</sub>), nitrogen dioxide (NO<sub>2</sub>), and carbon monoxide (CO) were obtained. <b><i>Results:</i></b> The PSI was higher in Kaohsiung and compared with Pingtung patients, Kaohsiung patients were exposed to higher average annual concentrations of CO, NO<sub>2</sub>, PM<sub>10</sub>, and SO<sub>2</sub>. AD patients living in Kaohsiung suffered from faster cognitive deterioration in comparison with Pingtung patients (log-rank test: <i>p</i> = 0.016). When using multivariate Cox proportional hazards regression analysis, higher levels of CO, NO<sub>2</sub>, PM<sub>10</sub>, and SO<sub>2</sub> exposure were associated with increased risk of AD cognitive deterioration. Among all these air pollutants, high SO<sub>2</sub> exposure has the greatest impact while O<sub>3</sub> has a neutral effect on AD cognitive deterioration. <b><i>Conclusions:</i></b> Air pollution is an environment-related risk factor that can be controlled and is associated with cognitive deterioration of AD. This finding could contribute to the implementation of public intervention strategies of AD.

Abstract P169: Health Literacy and Outcomes in Heart Failure: a Prospective Community Study

Circulation ◽  
2017 ◽  
Vol 135 (suppl_1) ◽  
Author(s):  
Matteo Fabbri ◽  
Kathleen Yost ◽  
Lila Finney Rutten ◽  
Sheila Manemann ◽  
Susan Weston ◽  
...  
Keyword(s):  
Heart Failure ◽  
Health Literacy ◽  
Proportional Hazards ◽  
International Classification Of Diseases ◽  
Cox Proportional Hazards ◽  
Low Literacy ◽  
Adequate Health Literacy ◽  
Low Health Literacy ◽  
Increased Risk

Background: Growing evidence documents the association between low health literacy and poorer health outcomes. However, less is known about the relationship between health literacy and outcomes among patients with heart failure (HF). We examined the association of health literacy with risk of hospitalization and mortality in patients with HF. Methods: Residents in an 11-county region in southeastern Minnesota with incident HF from 1/01/2013 to 3/31/2015 were identified using the International Classification of Diseases, Ninth Revision code 428 (n=3715) and prospectively surveyed to measure health literacy using established screening questions. A total of 1992 patients returned a survey (response rate 54%); 1779 patients with complete clinical data and adequate follow up were retained for analysis. Health literacy, measured as a composite on three 5-point scales, was categorized as adequate (≤ 10) or low (> 10). Cox proportional hazards regression and Andersen-Gill models were used to determine the association of health literacy with mortality and hospitalization. Results: Among 1779 patients (mean age 74, 53% male), 10% had low health literacy. After a mean follow-up of 8±4 months, 72 deaths and 600 hospitalizations occurred. Low health literacy was associated with increased mortality and hospitalizations (Figure). After adjusting for age, sex, comorbidity, education and marital status, the hazard ratio for death and hospitalization in patients with low health literacy was 2.84 (95% CI: 1.63, 4.96) and 1.43 (95% CI: 1.04, 1.96) respectively, compared to patients with adequate health literacy. Conclusions: Low health literacy is associated with increased risk of hospitalization and death among patients with HF. Health literacy is critical to the self-management demands of living with heart failure. Evaluation of health literacy in the clinical setting may guide inventions to target patients with low literacy.

Abstract P323: Pulse Pressure and Incident Acute Coronary Heart Disease Events in the REasons for Geographic and Racial Differences in Stroke (REGARDS) Study

Circulation ◽  
2013 ◽  
Vol 127 (suppl_12) ◽  
Author(s):  
Stephen P Glasser ◽  
Daniel L Halberg ◽  
Charles Sands ◽  
Paul Muntner ◽  
Monika Safford
Keyword(s):  
Risk Factors ◽  
Coronary Heart Disease ◽  
Heart Disease ◽  
Racial Differences ◽  
Pulse Pressure ◽  
Proportional Hazards ◽  
Linear Trend ◽  
Cox Proportional Hazards ◽  
Cvd Risk

Background: Increased attention has been given to pulse pressure (PP) as a potential independent risk factor of cardiovascular disease. We examined the relationship between PP and incident acute coronary heart disease (CHD). Methods: We used data from the REasons for Geographic And Racial Differences in Stroke (REGARDS) national cohort study of 30,239 black and white participants aged 45 years or older and enrolled between 2003 and 2007. Baseline data included a 45-minute interview and in-home visit during which blood pressure was assessed and recorded as the average of two measurements obtained after a 5 minute seated rest. PP (SBP-DBP) was classified into 4 groups (<45, 45-54, 54.1-64, >64.1 mmHg). Telephone follow-up occurred every six months for self or proxy-reported suspected events, triggering medical record retrieval and adjudication by experts. Cox-proportional hazards models examined the association of incident CHD with PP groups, adjusting for socio-demographic and clinical risk factors. Results: This analysis included 22,909 participants free of CHD at baseline, with mean age 64.7±9.4 years; 40.4%were black, 44.6% were male and they experienced a total of 515 incident CHD events over a mean 3.4 yrs of follow-up (maximum 6 years). In unadjusted analyses, compared with PP<45 mmHg, each higher PP group had incrementally higher hazard ratios (HR) for incident CHD (HR 1.28 {95% CI 1.02-1.60}, 2.05 {1.63-2.56}, 3.82 {3.08-4.74}, p<0.001 for linear trend). This relationship persisted after fully adjusting including SBP for the highest PP group (HR 0.96 {0.75-1.21}, 1.12 {0.86-1.46}, 1.51 {1.09-2.10}, p trend <0.0001). Conclusions: High PP was associated with incident CHD, even when accounting for SBP and numerous other CVD risk factors.

scholarly journals Association of poor sleep burden in middle age and older adults with risk for delirium during hospitalization

2021 ◽  
Author(s):  
Ma Cherrysse Ulsa ◽  
Xi Zheng ◽  
Peng Li ◽  
Arlen Gaba ◽  
Patricia M Wong ◽  
...  
Keyword(s):  
Sleep Disturbances ◽  
Proportional Hazards ◽  
Time Lag ◽  
Cox Proportional Hazards ◽  
Poor Sleep ◽  
Cardiovascular Risks ◽  
Cox Proportional Hazards Models ◽  
Increased Risk ◽  
The Uk

Abstract Background Delirium is a distressing neurocognitive disorder recently linked to sleep disturbances. However, the longitudinal relationship between sleep and delirium remains unclear. This study assessed the associations of poor sleep burden, and its trajectory, with delirium risk during hospitalization. Methods 321,818 participants from the UK Biobank (mean age 58±8y[SD]; range 37-74y) reported (2006-2010) sleep traits (sleep duration, excessive daytime sleepiness, insomnia-type complaints, napping, and chronotype–a closely-related circadian measure for sleep timing), aggregated into a sleep burden score (0-9). New-onset delirium (n=4,775) was obtained from hospitalization records during 12y median follow-up. 42,291 (mean age 64±8; range 44-83y) had repeat sleep assessment on average 8y after their first. Results In the baseline cohort, Cox proportional hazards models showed that moderate (aggregate scores=4-5) and severe (scores=6-9) poor sleep burden groups were 18% (hazard ratio 1.18 [95% confidence interval 1.08-1.28], p&lt;0.001) and 57% (1.57 [1.38-1.80], p&lt;0.001), more likely to develop delirium respectively. The latter risk magnitude is equivalent to two additional cardiovascular risks. These findings appeared robust when restricted to postoperative delirium and after exclusion of underlying dementia. Higher sleep burden was also associated with delirium in the follow-up cohort. Worsening sleep burden (score increase ≥2 vs. no change) further increased the risk for delirium (1.79 [1.23-2.62], p=0.002) independent of their baseline sleep score and time-lag. The risk was highest in those under 65y at baseline (p for interaction &lt;0.001). Conclusion Poor sleep burden and worsening trajectory were associated with increased risk for delirium; promotion of sleep health may be important for those at higher risk.

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