AWhat changed
Event-time outcomes could be analyzed with covariate effects while leaving baseline hazard unspecified.
Scientific scope
1972 sole-authored paper; proportionality and censoring assumptions apply; later diagnostics, extensions and causal inference excluded.
Evidence
The linked sources identify this contribution and its scope. WRS has not independently reconstructed the scientific claims. The record is Cox’s 1972 paper. Proportionality assumptions, diagnostics, time-varying extensions and causal interpretations require separate treatment.
Contributors
- David R. Cox · SCIENCE: Named source author of the scoped work; individual effort shares are not measured.
Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.
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