What question did this study set out to answer?

To evaluate the diagnostic accuracy of the Archimedes spiral test for differentiating essential tremor from healthy controls.

Diagnostic Accuracy of the Archimedes Spiral Test for Essential Tremor: A Meta-Analysis

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Meta-analysis evaluates the Archimedes spiral test's diagnostic accuracy for essential tremor, indicating potential for improved protocols.

To evaluate the diagnostic accuracy of the Archimedes spiral test for differentiating essential tremor from healthy controls.
Conducted a systematic review and meta-analysis following PRISMA 2020 guidelines.
Evaluated eight studies with a total of 1,046 participants.
Assessed risk of bias using QUADAS-2 and estimated pooled diagnostic accuracy with a random-effects model.
Performed subgroup/meta-regression analyses to identify factors like digital acquisition and AI algorithms affecting accuracy.
Pooled diagnostic accuracy was found to be 0.89 (95% CI: 0.77–0.95).
Technology-assisted methods had a higher accuracy of 0.91 compared to 0.78 for manual approaches.
Exploratory analyses suggest that factors like medication withdrawal and digital recording may enhance accuracy.

Macedo et al. (2026) studied this question.

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Meta-analysis evaluates the Archimedes spiral test's diagnostic accuracy for essential tremor, indicating potential for improved protocols.