ArticleBMC health services research2016
Validity of a stroke severity index for administrative claims data research: a retrospective cohort study.
Article in BMC health services research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.
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Who cites it
50 citing papers in PubMed.
- Longitudinal Adherence Trajectories to Statins and Antithrombotic Therapy After Ischemic Stroke and Their Impact on Low-Density Lipoprotein Control and Cardiovascular Outcomes.Journal of the American Heart Association · 2026Article
- Association between procedure volume and 30-day mortality in stroke patients treated with EVT or IV rt-PA during the introduction period of EVT in Japan.Global health & medicine · 2025Article
- The effect of sarcopenia on prognosis in patients with mild acute ischemic stroke: a prospective cohort study.BMC neurology · 2025Article
- Impact of heart rate on eGFR decline in ischemic stroke patients.Clinical kidney journal · 2025Article
- Use of Angiotensin-Converting Enzyme Inhibitors and Angiotensin Receptor Blockers Is Associated With a Reduced Risk of Poststroke Epilepsy in Patients With Ischemic Stroke.Journal of the American Heart Association · 2024Article
- Prognosis of Patients With Ischemic Stroke With Prior Anticoagulant Therapy: Direct Oral Anticoagulants Versus Warfarin.Journal of the American Heart Association · 2024Article
- Assessment of the impact of resting heart rate on the risk of major adverse cardiovascular events after ischemic stroke: a retrospective observational study.BMC neurology · 2024Observational
- Association between repeat imaging and readmission in patients with acute ischaemic stroke: a 16-year nationwide population-based study.The British journal of radiology · 2024Article
- Cilostazol plus Aspirin vs. Clopidogrel plus Aspirin in Acute Minor Stroke or Transient Ischemic Attack.Journal of atherosclerosis and thrombosis · 2024Article
- Characteristics and risk of stroke in emergency department patients with acute dizziness.Heliyon · 2024Article
- External Validation and Recalibration of a Mortality Prediction Model for Patients with Ischaemic Stroke.Journal of clinical medicine · 2023Article
- Association between initial in-hospital heart rate and glycemic control in patients with acute ischemic stroke and diabetes mellitus.BMC endocrine disorders · 2023Article
- Development and Validation of a Novel Score for Predicting Long-Term Mortality after an Acute Ischemic Stroke.International journal of environmental research and public health · 2023Article
- Initial In-Hospital Visit-to-Visit Heart Rate Variability Is Associated with Higher Risk of Atrial Fibrillation in Patients with Acute Ischemic Stroke.Journal of clinical medicine · 2023Article
- Weekend effect on 30-day mortality for ischemic and hemorrhagic stroke analyzed using severity index and staffing level.PloS one · 2023Article
- A cross-sectional study to validate an administrative back pain severity classification tool based on the graded chronic pain scale.Scientific reports · 2022Article
- Association of Statin Therapy With Major Adverse Cardiovascular and Limb Outcomes in Patients With End-stage Kidney Disease and Peripheral Artery Disease Receiving Maintenance Dialysis.JAMA network open · 2022Article
- Development and Validation of a Novel Score for Predicting Paroxysmal Atrial Fibrillation in Acute Ischemic Stroke.International journal of environmental research and public health · 2022Article
- Initial in-hospital heart rate is associated with long-term survival in patients with acute ischemic stroke.Clinical research in cardiology : official journal of the German Cardiac Society · 2022Article
- Oral Anticoagulation Timing in Patients with Acute Ischemic Stroke and Atrial Fibrillation.Thrombosis and haemostasis · 2022Article
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Authors and funding
7 authors.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundAscertaining stroke severity in claims data-based studies is difficult because clinical information is unavailable. We assessed the predictive validity of a claims-based stroke severity index (SSI) and determined whether it improves case-mix adjustment.
methodsWe analyzed patients with acute ischemic stroke (AIS) from hospital-based stroke registries linked with a nationwide claims database. We estimated the SSI according to patient claims data. Actual stroke severity measured with the National Institutes of Health Stroke Scale (NIHSS) and functional outcomes measured with the modified Rankin Scale (mRS) were retrieved from stroke registries. Predictive validity was tested by correlating SSI with mRS. Logistic regression models were used to predict mortality.
resultsThe SSI correlated with mRS at 3 months (Spearman rho = 0.578; 95 % confidence interval [CI], 0.556-0.600), 6 months (rho = 0.551; 95 % CI, 0.528-0.574), and 1 year (rho = 0.532; 95 % CI 0.504-0.560). Mortality models with the SSI demonstrated superior discrimination to those without. The AUCs of models including the SSI and models with the NIHSS did not differ significantly.
conclusionsThe SSI correlated with functional outcomes after AIS and improved the case-mix adjustment of mortality models. It can act as a valid proxy for stroke severity in claims data-based studies.
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