When to conduct probabilistic linkage vs. deterministic linkage? A simulation study ?
We evaluated linkage methods in simulations that represent real-life challenges. Probabilistic linkage was a more accurate method in poorer quality (more errors) data. Deterministic linkage was an equally valid and faster method in high quality data. Difference in two methods narrowed as numbers of unmatchable in file increased. Both methods performed poorly if linkage rules only had low discriminative power.
probabilistic linkage deterministic linkage simulation study record linkage comparative validity