Table 1 Summary of the case/control populations used in the discovery and replication stages
Stages | Cases | Controls | ||
|---|---|---|---|---|
Sample size | Mean age (s.d.) | Sample size | Mean age (s.d.) | |
Discovery stage | 65 | 23.8 (1.6) | 233 | 23.4 (1.6) |
Replication stage | 34 | 26.4 (3.9) | 379 | 24.5 (2.9) |
Overall | 99 | 24.7 (2.9) | 612 | 24.1 (2.5) |