Table 1 Sample size for discovery and replication cohorts for smoking and drinking phenotypes in GSCAN.

From: Model-based assessment of replicability for genome-wide association meta-analysis

Phenotype

Discovery N (number of contributing studies)

Replication sample size (23andMe)

CigDay

263,954 (34)

73,380

DrnkWk

537,349 (33)

403,931

SmkCes

366,740 (36)

234,398

SmkInit

651,337 (35)

599,289