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Table 2 Signal detection results of stratification and non-stratification

From: A stratification method based on clustering for the minimization of data masking effect in signal detection

 PositiveNegative
Stratification (Non-stratification)Stratification (Non-stratification)
Known5046 (3739)7447 (8754)
Unknown5290 (3114)19,410 (21,586)