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To systematically review the predictive validity of spontaneous early infant movements for later cerebral palsy (CP).

Cohort studies with published data to calculate predictive validity of early spontaneous movements for later CP were searched in four electronic databases: CINAHL, Embase, MEDLINE, and PsycINFO.

Forty‐seven studies met inclusion criteria. The Prechtl General Movements Assessment (GMA) during the fidgety period (10–20wks corrected age) had the strongest sensitivity: 97 per cent (95% confidence interval [CI] 93–99) and specificity: 89% (95% CI 83–93). The sensitivity and specificity of the Prechtl GMA during the writhing period (birth–6wks) was 93% (95% CI 86–96) and 59% (95% CI 45–71) respectively. Cramped‐synchronized movements in the writhing period according to Prechtl had the best specificity (sensitivity: 70% [95% CI 54–82]; specificity: 97% [95% CI 74 …