Samples genotyped for polymorphisms in the SERT gene
| Sample set | Female Caucasian samples |
|---|---|
| IBS patients | |
| North-American phase III clinical trials (diarrhoea predominant) | 194 |
| Controls | |
| Commercial samples | |
| Coriell | 48 |
| DNA Sciences Laboratories | 125 |
| GlaxoSmithKline samples | 275 |
| Total | 448 |