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Description of the Samples with Genome-wide Association Data and Smoking Phenotypes
| N Subjects | Mean Age (SD) | % Female | % Ever Smoked | % Current Smoker | |
|---|---|---|---|---|---|
| Discovery sample (The Netherlands) | 3497 | 43.8 (13.4) | 65 | 64.0 | 29.9 |
| GenomEUtwin (Europe and Australia) | 1648 | 48.0 (15.1) | 100 | 49.5 | 24.8 |
| Rotterdam (The Netherlands) | 5810 | 69.4 (9.1) | 59 | 63 | 23.0 |
| Leiden (The Netherlands) | 405 | 59.6 (7.2) | 57 | 72 | 13.3 |
