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This is a clinical trial registry record documenting a planned observational cohort study with no results yet reported; it describes study design and objectives only.
A single-centre retrospective cohort study with modest sample size examining real-world DOAC dosing patterns and outcomes in an underrepresented Asian population; findings on safety equivalence are not powered to exclude clinically important differences.
Large national retrospective cohort with 18-year follow-up describing mortality patterns in ischemic stroke; confirms known temporal shifts in cause-of-death profiles but is descriptive, not comparative, and provides no intervention effect.
Cross-sectional survey estimating population attributable fractions with acknowledged reverse causation bias; provides policy-relevant scenario estimates but cannot establish causality or direct clinical effects.
Meta-analysis of 3 RCTs and 8 observational studies shows apixaban and rivaroxaban associated with lower bleeding risk versus warfarin in dialysis patients with AF, but efficacy endpoints show substantial heterogeneity and RCT-only analysis lacked statistical significance; evidence is suggestive but requires dedicated large RCTs.
Large meta-analysis of 31 RCTs with 156,933 participants demonstrates consistent, statistically significant reductions across multiple cardiovascular endpoints with narrow confidence intervals; evidence quality limited by heterogeneity across trials and absence of reported adverse event data.