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Comparison of the 5-HTTLPR allele frequencies between the PPD and control groups.
| 5-HTTLPR allele frequencies | |||
|---|---|---|---|
|
|
|||
| Group | N | L, % (n) | S, % (n) |
| PPD | 240 | 23.33 (56) | 76.67 (184) |
| Control | 280 | 30.36 (85) | 69.64 (195) |
| Total | 520 | 27.12 (141) | 72.88 (379) |
No significant differences were found in the frequencies of the L and S alleles between the PPD and control groups (χ2=3.226 and P=0.072). PPD, postpartum depression; L, long; S, short.
