scholarly journals Assessing short-term risk of ischemic stroke in relation to all prescribed medications

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Imre Janszky ◽  
Ioannis Vardaxis ◽  
Bo Henry Lindqvist ◽  
Jens Wilhelm Horn ◽  
Ben Michael Brumpton ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Odds Ratio ◽  
Crossover Design ◽  
Lasso Regression ◽  
Short Term ◽  
Case Crossover ◽  
Increased Risk ◽  
Follow Up Studies ◽  
Prescription Databases

AbstractWe examined the short-term risk of stroke associated with drugs prescribed in Norway or Sweden in a comprehensive, hypothesis-free manner using comprehensive nation-wide data. We identified 27,680 and 92,561 cases with a first ischemic stroke via the patient- and the cause-of-death registers in Norway (2004–2014) and Sweden (2005–2014), respectively, and linked these data to prescription databases. A case-crossover design was used that compares the drugs dispensed within 1 to 14 days before the date of ischemic stroke occurrence with those dispensed 29 to 42 days before the index event. A Bolasso approach, a version of the Lasso regression algorithm, was used to select drugs that acutely either increase or decrease the apparent risk of ischemic stroke. Application of the Bolasso regression algorithm selected 19 drugs which were associated with increased risk for ischemic stroke and 11 drugs with decreased risk in both countries. Morphine in combination with antispasmodics was associated with a particularly high risk of stroke (odds ratio 7.09, 95% confidence intervals 4.81–10.47). Several potentially intriguing associations, both within and across pharmacological classes, merit further investigation in focused, follow-up studies.

scholarly journals Using the Case-Crossover Design to Assess Short-Term Risks of Bleeding and Arterial Thromboembolism After Switching Between Oral Anticoagulants in a Population-Based Cohort of Patients With Atrial Fibrillation

2020 ◽  
Vol 189 (12) ◽  
pp. 1467-1477
Author(s):  
Maja Hellfritzsch ◽  
Shirley V Wang ◽  
Erik Lerkevang Grove ◽  
Joshua J Gagne ◽  
Jesper Hallas ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Ischemic Stroke ◽  
Confidence Intervals ◽  
Odds Ratio ◽  
Oral Anticoagulant ◽  
Conditional Logistic Regression ◽  
Population Based ◽  
Short Term ◽  
Arterial Thromboembolism ◽  
Case Crossover

Abstract Using nationwide Danish registries, we conducted a population-based case-crossover study evaluating the association between switching from a vitamin K antagonist (VKA) to a direct oral anticoagulant (DOAC), and vice versa, and 30-day risks of bleeding and arterial thromboembolism in patients with atrial fibrillation (AF). The case-crossover population was identified among oral anticoagulant users during 2011–2018 (n = 123,217) as patients with AF with 1) a case-defining outcome and 2) an anticoagulant switch during the 180 days preceding the outcome. Odds ratios were estimated using conditional logistic regression by comparing the occurrence of switching during the 30-day window immediately preceding the outcome to that in reference windows in the same individual 60–180 days before the outcome. The case-crossover populations for switching from VKA to DOAC and DOAC to VKA comprised 1,382 and 287 case patients, respectively. Switching from VKA to DOAC, but not from DOAC to VKA, was associated with an increased short-term risk of bleeding (odds ratio = 1.42; 95% confidence intervals: 1.13, 1.79, and 1.06; and 0.64, 1.75, respectively) and ischemic stroke (odds ratio = 1.74; 95% confidence intervals: 1.21, 2.51, and 0.92; and 0.46, 1.83, respectively). Our findings suggest that switching from VKA to DOAC is an intermittent risk factor of bleeding and ischemic stroke in patients with AF.

scholarly journals The 10-Year Study of the Impact of Particulate Matters on Mortality in Two Transit Cities in North-Eastern Poland (PL-PARTICLES)

2020 ◽  
Vol 9 (11) ◽  
pp. 3445
Author(s):  
Łukasz Kuźma ◽  
Emil Julian Dąbrowski ◽  
Anna Kurasz ◽  
Hanna Bachórzewska-Gajewska ◽  
Sławomir Dobrzycki
Keyword(s):  
Air Pollution ◽  
Cardiovascular Mortality ◽  
Odds Ratio ◽  
Crossover Design ◽  
Particulate Matters ◽  
Short Term ◽  
Respiratory Mortality ◽  
Case Crossover ◽  
North Eastern ◽  
The Impact

The detrimental influence of air pollution on mortality has been established in a series of studies. The majority of them were conducted in large, highly polluted cities—there is a lack of studies from small, relatively clean regions. The aim was to analyze the short-term impact of particulate matters (PMs) on mortality in north-eastern Poland. Time-stratified case-crossover design was performed for mortality in years 2008–2017. Daily concentrations of PM2.5 (28.4 µg/m3, interquartile range (IQR) = 25.2) vs. (12.6 µg/m3, IQR = 9.0) and PM10 (29.0 µg/m3, IQR = 18.0) vs. (21.7 µg/m3, IQR = 14.5) were higher in Łomża than Suwałki (p < 0.001). Impact of PM2.5 on mortality was recorded in Łomża (odds ratio (OR) for IQR increase 1.061, 1.017–1.105, p = 0.06, lag 0) and Suwałki (OR for IQR increase 1.044, 1.001–1.089, p = 0.004, lag 0). PM10 had an impact on mortality in Łomża (OR for IQR increase 1.028, 1.000–1.058, p = 0.049, lag 1). Cardiovascular mortality was affected by increase of PM2.5 in Łomża (1.086, 1.020–1.156, p = 0.01) and Suwałki (1.085, 1.005–1.171, p = 0.04). PM2.5 had an influence on respiratory mortality in Łomża (1.163, 1.021–1.380, p = 0.03, lag 1). In the whole studied region, despite differences in the air quality, the influence of PMs on mortality was observed.

scholarly journals Reversed L-shaped Association Between Baseline Brachial-ankle Pulse Wave Velocity and Short-Term Risk of First Stroke in Patients With Hypertension: A Population-based Cohort Study

2020 ◽  
Author(s):  
Lihua Hu ◽  
Chonglei Bi ◽  
Lishun Liu ◽  
Yun Song ◽  
Yue Zhang ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Pulse Wave Velocity ◽  
Wave Velocity ◽  
Pulse Wave ◽  
Cox Proportional Hazards ◽  
Short Term ◽  
Cvd Risk ◽  
Value Analysis ◽  
Increased Risk

Abstract Background: Brachial–ankle pulse wave velocity (baPWV) is available as a noninvasive measure of arterial stiffness. However, little information is available on the association between baPWV and the short-term risk of stroke in patients with hypertension. Therefore, our current study aimed to assess the association between baseline baPWV and short-term risk of first stroke. We were particularly interested in identifying those individuals at high risk of developing stroke among patients with hypertension.Methods: From January 1, 2017, to December 31, 2017, a total of 9787 individuals without preexisting stroke from the China Hypertension Registry Study were included in this analysis. Follow-up continued until December 31, 2018. The primary outcome was first stroke. The crude and adjusted risks of first stroke were estimated by hazard ratios (HRs) and 95% CIs using Cox proportional hazards models, without or with adjusting for pertinent covariates, respectively.Results: During a median follow-up of 20.8 months, there were 138 total first strokes including 123 first ischemic strokes and 15 first hemorrhagic strokes. Smooth curve showed that the relationship between baPWV and risk of first stroke and first ischemic stroke was curvilinear and reversed L-shaped. High baPWV levels (≥ 21.31 m/s) was associated with increased risk of first stroke (HR = 1.52; 95% CI: 1.05-2.21) and first ischemic stroke (HR = 1.53; 95% CI: 1.03-2.26) compared to low baPWV levels (< 21.31 m/s). E-value analysis suggested robustness to unmeasured confounding. Our findings may propose the applicability of baPWV measurement for prediction of stroke development, especially in subjects with a low cardiovascular (CVD) risk.Conclusions: High baPWV levels (≥ 21.31 m/s) were associated with increased the short-term risk of first stroke among Chinese hypertensive adults, compared to low baPWV levels, supporting a reversed L-shaped association. Our findings warrant additional investigation.

Prognostic Relevance of Celiac Lymph Node Involvement in Ovarian Cancer

2014 ◽  
Vol 24 (1) ◽  
pp. 48-53 ◽  
Author(s):  
Alejandra Martínez ◽  
Cristophe Pomel ◽  
Thomas Filleron ◽  
Marjolein De Cuypere ◽  
Eliane Mery ◽  
...  
Keyword(s):  
Ovarian Cancer ◽  
Overall Survival ◽  
Lymph Node ◽  
Oncologic Outcome ◽  
Progression Free Survival ◽  
Disease Spread ◽  
Short Term ◽  
Free Survival ◽  
Increased Risk

ObjectiveThe aim of the study was to report on the oncologic outcome of the disease spread to celiac lymph nodes (CLNs) in advanced-stage ovarian cancer patients.MethodsAll patients who had CLN resection as part of their cytoreductive surgery for epithelial ovarian, fallopian, or primary peritoneal cancer were identified. Patient demographic data with particular emphasis on operative records to detail the extent and distribution of the disease spread, lymphadenectomy procedures, pathologic data, and follow-up data were included.ResultsThe median follow-up was 26.3 months. The median overall survival values in the group with positive CLNs and in the group with negative CLNs were 26.9 months and 40.04 months, respectively. The median progression-free survival values in the group with metastatic CLNs and in the group with negative CLNs were 8.8 months and 20.24 months, respectively (P = 0.053). Positive CLNs were associated with progression during or within 6 months after the completion of chemotherapy (P = 0.0044). Tumor burden and extensive disease distribution were significantly associated with poor progression-free survival, short-term progression, and overall survival. In multivariate analysis, only the CLN status was independently associated with short-term progression.ConclusionsDisease in the CLN is a marker of disease severity, which is associated to a high-risk group of patients with presumed adverse tumor biology, increased risk of lymph node progression, and worst oncologic outcome.

Abstract P25: Safety of Ticagrelor in Moderate to Severe Acute Ischemic Stroke: A Single-Center Retrospective Review

Stroke ◽  
2021 ◽  
Vol 52 (Suppl_1) ◽  
Author(s):  
Stephen W English ◽  
David Landzberg ◽  
Nirav Bhatt ◽  
Michael Frankel ◽  
Digvijaya Navalkele
Keyword(s):  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Major Bleeding ◽  
Mechanical Thrombectomy ◽  
Categorical Variables ◽  
Severe Bleeding ◽  
Large Artery ◽  
Inpatient Stay ◽  
Increased Risk

Introduction: Ticagrelor with aspirin has been recently shown to reduce the risk of stroke or death compared to aspirin alone in patients with high risk TIAs and mild strokes. However, this benefit is offset by increased risk of severe bleeding. We sought to evaluate the safety of ticagrelor in patients with moderate to severe ischemic stroke. Methods: This was a retrospective cohort study of adults discharged on ticagrelor after presenting with acute ischemic stroke and NIHSS > 5 from January 2016 to December 2019 at a large, urban, academic comprehensive stroke center. Patients were excluded if they underwent carotid or intracranial angioplasty and/or stenting, or carotid endarterectomy during admission. Baseline clinical characteristics, imaging, and outcomes were reviewed. Data was organized into continuous and categorical variables. Results: Sixty-one patients met inclusion and exclusion criteria. Median age was 61 (IQR, 52-68) years; 33 (54%) were men, and 33 (54%) were African American. Median NIHSS was 11 (IQR, 8-15). Fourteen (23%) patients received IV Alteplase and 35 (57%) patients underwent mechanical thrombectomy. Five (8%) patients received both IV Alteplase and mechanical thrombectomy. Median ticagrelor start date was hospital day 1 (IQR, 0-3). Large artery atherosclerosis was presumed etiology in 53 (87%) patients. No patients experienced neurologic worsening, recurrent stroke, sICH, or major bleeding during inpatient stay. Sixty (98%) patients were on aspirin and ticagrelor at discharge. Follow-up information was available for 53 (87%) patients for a median duration of 3 (IQR, 2-6) months. Following discharge, 3 (5%) patients experienced recurrent ischemic stroke despite being compliant. One (2%) patient experienced major bleeding—gastrointestinal hemorrhage requiring transfusion—two months after hospital discharge. Conclusions: This study highlights the potential expanding role for ticagrelor in secondary stroke prevention in patients with moderate to severe stroke. Early ticagrelor use did not result in sICH during inpatient stay—and only 1 major bleeding event on follow-up—in our cohort. While further research in this area is needed, these findings present an exciting opportunity for future prospective studies.

Abstract MP86: Effects of Immediate Blood Pressure Reduction on Death and Major Disability in Acute Ischemic Stroke Patients by History of Hypertension and Use of Antihypertensive Medications

Circulation ◽  
2015 ◽  
Vol 131 (suppl_1) ◽  
Author(s):  
Tan Xu ◽  
Yonghong Zhang ◽  
Yingxian Sun ◽  
Chung-Shiuan Chen ◽  
Jing Chen ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Treatment Group ◽  
Acute Ischemic Stroke ◽  
Hospital Discharge ◽  
Odds Ratio ◽  
Recurrent Stroke ◽  
Stroke Patients ◽  
Antihypertensive Medications ◽  
History Of

Introduction: The effects of blood pressure (BP) reduction on clinical outcomes among acute stroke patient remain uncertain. Hypothesis: We tested the effects of immediate BP reduction on death and major disability at 14 days or hospital discharge and 3-month follow-up in acute ischemic stroke patients with and without a previous history of hypertension or use of antihypertensive medications. Methods: The China Antihypertensive Trial in Acute Ischemic Stroke (CATIS) randomly assigned patients with ischemic stroke within 48 hours of onset and elevated systolic BP (SBP) to receive antihypertensive treatment (N=2,038) or to discontinue all antihypertensive medications (N=2,033) during hospitalization. Randomization was stratified by participating hospitals and use of antihypertensive medications. Study outcomes were assessed at 14 days or hospital discharge and 3-month post-treatment follow-up. The primary outcome was death and major disability (modified Rankin Scale score≥3), and secondary outcomes included recurrent stroke and vascular events. Results: Mean SBP was reduced 12.7% in the treatment group and 7.2% in the control group within 24 hours after randomization (P<0.001). Mean SBP was 137.3 mmHg in the treatment group and 146.5 in the control group at day 7 after randomization (P<0.001). At 14 days or hospital discharge, the primary and secondary outcomes were not significantly different between the treatment and control groups by subgroups. At the 3-month follow-up, recurrent stroke was significantly reduced in the antihypertensive treatment group among patients with a history of hypertension (odds ratio 0.43, 95% CI 0.24-0.75, P=0.003) and among patients with a history of use of antihypertensive medications (odds ratio 0.41, 95% CI 0.20-0.84, P=0.01). All-cause mortality (odds ratio 2.84, 95% CI 1.11-7.27, P=0.03) was increased among patients without a history of hypertension. Conclusion: Immediate BP reduction lowers recurrent stroke among acute ischemic stroke patients with a previous history of hypertension or use of antihypertensive medications at 3 months. On the other hand, BP reduction increases all-cause mortality among patients without a history of hypertension.

Abstract WP200: Post-operative Infection Does not Increase Risk of Post-operative Stroke: Analysis From a Nationwide Quality Initiative Program

Stroke ◽  
2016 ◽  
Vol 47 (suppl_1) ◽  
Author(s):  
Benjamin R Kummer ◽  
Rebecca Hazan ◽  
Hooman Kamel ◽  
Alexander E Merkler ◽  
Joshua Z Willey ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Odds Ratio ◽  
Postoperative Infection ◽  
Adjusted Odds Ratio ◽  
Risk Of Infection ◽  
Postoperative Stroke ◽  
Increased Risk ◽  
Increase Risk ◽  
Initiative Program ◽  
The Relationship

Introduction: Infection has been described as a trigger for acute ischemic stroke, but the relationship between postoperative infection and the risk of postoperative stroke is unclear. We investigated the association between postoperative infection and stroke using the American College of Surgeons National Surgical Quality Initiative Program (NSQIP) database. Hypothesis: Postoperative infection is associated with an increased risk of postoperative stroke. Methods: We used the NSQIP database to identify all patients who underwent surgery between the years of 2000 and 2010 and developed a postoperative stroke within 30 days of surgery. The group was further stratified according to the presence of infection preceding stroke. Using a logistic regression model adjusted for age, race, sex, medical comorbidities, surgical type, and dichotomized functional status, we compared the risk of stroke in patients with and without preceding infections, and investigated the risk of infection following stroke. Results: 729,886 surgical patients were identified, of whom 2,703 (0.3%) developed postoperative stroke. 848 (0.12%) patients developed both postoperative stroke and infection. Among patients who had postoperative stroke, 100 (3.7%) had developed an infection prior to developing a stroke. Patients with infection prior to stroke had a lower risk of stroke than patients who did not develop infection prior to stroke (adjusted odds ratio [OR] 0.25, 95%CI 0.20-0.32). 748 patients (0.1%) developed an infection after having a postoperative stroke. These patients had a higher risk of infection (incidence rate ratio 2.76, 95%CI 2.57-2.97) and a higher odds of infection (adjusted odds ratio [OR] 3.47, 95%CI 3.18-3.78) than patients who did not have a stroke. Conclusions: We found that the presence of a preceding infection was associated with a low risk of postoperative stroke in a large surgical inpatient sample. Although the total number of strokes may have been under-reported, these results conflict with other studies that report that infection is a trigger for ischemic stroke. Further analyses using more granular data are needed to investigate the relationship between postoperative infection and the risk of postoperative stroke.

scholarly journals Acute cardiovascular events and all-cause mortality in patients with hyperthyroidism: a population-based cohort study

2017 ◽  
Vol 176 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Olaf M Dekkers ◽  
Erzsébet Horváth-Puhó ◽  
Suzanne C Cannegieter ◽  
Jan P Vandenbroucke ◽  
Henrik Toft Sørensen ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Cohort Study ◽  
Ischemic Stroke ◽  
Cardiovascular Events ◽  
Population Based ◽  
Arterial Embolism ◽  
Registration System ◽  
Increased Risk ◽  
All Cause Mortality

Objective Several studies have shown an increased risk for cardiovascular disease (CVD) in hyperthyroidism, but most studies have been too small to address the effect of hyperthyroidism on individual cardiovascular endpoints. Our main aim was to assess the association among hyperthyroidism, acute cardiovascular events and mortality. Design It is a nationwide population-based cohort study. Data were obtained from the Danish Civil Registration System and the Danish National Patient Registry, which covers all Danish hospitals. We compared the rate of all-cause mortality as well as venous thromboembolism (VTE), acute myocardial infarction (AMI), ischemic and non-ischemic stroke, arterial embolism, atrial fibrillation (AF) and percutaneous coronary intervention (PCI) in the two cohorts. Hazard ratios (HR) with 95% confidence intervals (95% CI) were estimated. Results The study included 85 856 hyperthyroid patients and 847 057 matched population-based controls. Mean follow-up time was 9.2 years. The HR for mortality was highest in the first 3 months after diagnosis of hyperthyroidism: 4.62, 95% CI: 4.40–4.85, and remained elevated during long-term follow-up (>3 years) (HR: 1.35, 95% CI: 1.33–1.37). The risk for all examined cardiovascular events was increased, with the highest risk in the first 3 months after hyperthyroidism diagnosis. The 3-month post-diagnosis risk was highest for atrial fibrillation (HR: 7.32, 95% CI: 6.58–8.14) and arterial embolism (HR: 6.08, 95% CI: 4.30–8.61), but the risks of VTE, AMI, ischemic and non-ischemic stroke and PCI were increased also 2- to 3-fold. Conclusions We found an increased risk for all-cause mortality and acute cardiovascular events in patients with hyperthyroidism.

Abstract 2646: Aortic Arch Plaques and Risk of Vascular Events in Subjects Without Prior Stroke

Circulation ◽  
2008 ◽  
Vol 118 (suppl_18) ◽  
Author(s):  
Cesare Russo ◽  
Zhezhen Jin ◽  
Ralph L Sacco ◽  
Shunichi Homma ◽  
Tatjana Rundek ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Ischemic Stroke ◽  
Aortic Arch ◽  
Proportional Hazards ◽  
Cox Proportional Hazards ◽  
Study Cohort ◽  
Vascular Events ◽  
Increased Risk ◽  
Prior Stroke

BACKGROUND: Aortic arch plaques (AAP) are a risk factor for cardiovascular embolic events. However, the risk of vascular events associated with AAP in the general population is unclear. AIM: To assess whether AAP detected by transesophageal echocardiography (TEE) are associated with an increased risk of vascular events in a stroke-free cohort. METHODS: The study cohort consisted of stroke-free subjects over age 50 from the Aortic Plaques and Risk of Ischemic Stroke (APRIS) study. AAP were assessed by multiplane TEE, and considered large if ≥ 4 mm in thickness. Vascular events including myocardial infarction, ischemic stroke and vascular death were recorded during the follow-up. The association between AAP and outcomes was assessed by univariate and multivariate Cox proportional hazards models. RESULTS: A group of 209 subjects was studied (mean age 67±9 years; 45% women; 14% whites, 30% blacks, 56% Hispanics). AAP of any size were present in 130 subjects (62%); large AAP in 50 (24%). Subjects with AAP were older (69±8 vs. 63±7 years), had higher systolic BP (146±21 vs.139±20 mmHg), were more often white (19% vs. 8%), smokers (20% vs. 9%) and more frequently had a history of coronary artery disease (26% vs. 14%) than those without AAP (all p<0.05). Lipid parameters, prevalence of atrial fibrillation and diabetes mellitus were not significantly different between the two groups. During the follow up (94±29 months) 30 events occurred (13 myocardial infarctions, 11 ischemic strokes, 6 vascular deaths). After adjustment for other risk factors, AAP of any size were not associated with an increased risk of combined vascular events (HR 1.07, 95% CI 0.44 to 2.56). The same result was observed for large AAP (HR 0.94, CI 0.34 to 2.64). Age (HR 1.05, CI 1.01 to 1.10), body mass index (HR 1.08, CI 1.01 to 1.15) and atrial fibrillation (HR 3.52, CI 1.07 to 11.61) showed independent association with vascular events. In a sub-analysis with ischemic stroke as outcome, neither AAP of any size nor large AAP were associated with an increased risk. CONCLUSIONS: In this cohort without prior stroke, the incidental detection of AAP was not associated with an increased risk of future vascular events. Associated co-factors may affect the AAP-related risk of vascular events reported in previous studies.

Abstract P050: Association Between Glycemic Control and Short-term Mortality Varies Across the Spectrum of Coronary Artery Disease

Circulation ◽  
2017 ◽  
Vol 135 (suppl_1) ◽  
Author(s):  
Sridharan Raghavan ◽  
Wenhui G Liu ◽  
P. Michael Ho ◽  
Mary E Plomondon ◽  
Anna E Baron ◽  
...  
Keyword(s):  
Coronary Artery Disease ◽  
Coronary Artery ◽  
Glycemic Control ◽  
Diabetes Management ◽  
Significant Risk ◽  
Short Term ◽  
Increased Risk ◽  
Short Term Mortality ◽  
Artery Disease

Background: Diabetes is a significant risk factor for cardiovascular disease, but optimal glycemic control strategies remain unclear. In particular, trials of intensive glycemic control have highlighted a tension between increased mortality risk and macrovascular benefits. In this study we aimed to assess whether the burden of coronary artery disease (CAD) modifies the association between glycemic control and short-term mortality. Methods: We studied veterans with diabetes who underwent elective cardiac catheterization between 2005 and 2013 in a retrospective analysis of data from the VA Clinical Assessment, Reporting, and Tracking (CART) Program. Primary exposures were time-varying HbA1c over two years of follow-up after index catheterization, categorized as <6%, 6-6.49%, 6.5-6.99%, 7-7.99%, 8-8.99%, and >=9%, and burden of CAD, categorized as no CAD, non-obstructive CAD, or obstructive CAD. Primary outcome was two-year all-cause mortality. A total of 17394 participants had, on average, five HbA1c measurements over two years of follow-up. We used multivariable Cox proportional hazards regression to estimate the association between HbA1c and mortality, adjusting for demographic and clinical covariates and CAD burden, and including a term for interaction between HbA1c and CAD burden. Results: In adjusted models with 6.5 ≤ HbA1c ≤ 6.99% as the reference category, HbA1c < 6% was associated with increased risk of mortality (HR 1.55 [1.25, 1.92]), whereas HbA1c categories above 7% were not. We observed significant interaction between glycemic control and CAD burden (interaction p=0.0005); the increased risk of short-term mortality at HbA1c < 6% was limited to individuals with non-obstructive and obstructive CAD (Figure 1). Conclusions: HbA1c below 6% was associated with increased risk of short-term mortality, but only in individuals with CAD. CAD burden may thus inform individualized diabetes management strategies, specifically treatment de-escalation in individuals with any angiographically-defined CAD.

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