Table 1.
Genotype distribution data (upper panel) and allele frequency data (lower panel) for 5HTTLPR from TMD patients and controls.
| genotype | TMD | control |
| 5HTTLPR | n = 36 | n = 119 |
| s/s | 17 (47.2%) | 87 (73.1%) |
| s/l | 14 (38.9%) | 29 (24.4%) |
| l/l | 4 (11.1%) | 2 (1.7%) |
| s/xl | 1 (2.8%) | 1 (0.8%) |
| p value | ||
| Pearson's χ2 test | 0.0079 | |
| Fisher's exact test | 0.0044 | |
| allele | TMD | control |
| 5HTTLPR | n = 72 | n = 238 |
| s | 49 (68.1%) | 204 (85.7%) |
| l | 22 (30.5%) | 33 (13.9%) |
| xl | 1 (1.4%) | 1 (0.4%) |
| p value | ||
| Pearson's χ2 test | 0.0027 | |
| Fisher's exact test | 0.0019 | |