Circadian melatonin profile in controls and PMDD women.
PMDD: premenstrual dysphoric disorder; FP: follicular phase; LP: luteal phase; DLMOn, dim light melatonin onset; DLMOff, dim light melatonin offset; AUC, area under the curve.
Values are mean ± SEM.a
indicates different than controls at the level of P = .05 when LP values compared.b
indicates different than PMDD FP at level of P = .03.