Evidence map›Paper›PMID 39663762›Full record

ArticleClinical cardiology2024

Incidence Rate and Predictors of Intracranial Hemorrhage in Patients With Atrial Fibrillation: A Report From the Nationwide COOL-AF Registry.

Rungroj Krittayaphong, Kasem Ratanasumawong, Komsing Methavigul, Chaiyasith Wongvipaporn, Gregory Y H Lip

Abstract readMulticenter Study
In one paragraph

Article in Clinical cardiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed.

  1. Article
  2. Observational
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Rungroj KrittayaphongFaculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.ORCID http://orcid.org/0000-0001-8684-2361
Kasem RatanasumawongPolice General Hospital, Bangkok, Thailand.
Komsing MethavigulDepartment of Cardiology, Central Chest Institute of Thailand, Nonthaburi, Thailand.
Chaiyasith WongvipapornSrinakarind Hospital, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand.
Gregory Y H LipLiverpool Centre for Cardiovascular Science, University of Liverpool and Liverpool Heart & Chest Hospital, Liverpool, UK.ORCID http://orcid.org/0000-0002-7566-1626

Funding

This study was supported by Health Systems Research Institute, Grant/Award Number: 59-053; Heart Association of Thailand.
6 · The paper itself

Abstract

backgroundSpecific risk predictor scores of intracranial hemorrhage (ICH) risk in Asian subjects are lacking. We determined the incidence rate and predictors of ICH in patients with non-valvular atrial fibrillation (AF).

methodsA prospective nationwide registry of patients with AF was conducted from 27 hospitals in Thailand. The adjudicated primary outcome was the development of ICH during follow-up. Multivariable Cox proportional hazard model was performed to identify the independent predictors for ICH. A predictive model for ICH risk was developed and validated by bootstrap, calibration plot, C-statistics, and decision curve analysis using our own data.

resultsWe studied a total of 3405 patients (mean age 67.8 years; 58.2% male) with an average follow-up duration of 31.8 ± 8.7 months, during which ICH developed in 70 patients (2.06%). The incidence rate of ICH was 0.78 (0.61-0.98) per 100 person-years. Predictors of ICH were chosen from the theory-driven approaches in combination with the results of the univariable analysis. The predictive risk model had a c-index of 0.717 (0.702-0.732) with good calibration, internal validation, and clinical usefulness using decision curve analysis. The probability of ICH at 3 years for an individual patient derived from the prediction model was compared with the probability derived from HAS-BLED score by using the C-statistics. The ICH probability from the COOL-AF model was superior to the HAS-BLED score in the prediction of ICH.

conclusionThe incidence rate of ICH was 0.78 (0.61-0.98) per 100 person-years. Predictors of ICH were older age, male sex, nonsmoking, renal replacement therapy, and use of oral anticoagulants.

Indexed as

Atrial FibrillationIntracranial HemorrhagesRegistriesAgedFemaleFollow-Up StudiesHumansIncidenceMaleMiddle AgedPrognosisProspective StudiesRisk AssessmentRisk FactorsThailandTime Factorsatrial fibrillationintracranial hemorrhageoral anticoagulantswarfarin

Identifiers

PMID39663762
PMCPMC11635119

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