Purpose: The present study was aimed at determining the effectiveness of
integrative transdiagnostic treatment on sleep quality and premenstrual
symptoms. Method: This study was carried out based on clinical trial including
pre-test, post-test, and follow-up with control group. The participants of the
study included all women in reproductive ages with a diagnosis of
premenstrual syndrome who had referred to Shahid Beheshti University of
Medical Sciences in during November 2020 to December 2021. Forty
participants were selected via purposive sampling. Twenty participants were
then assigned into each group. Experimental group participants received 8
transdiagnostic treatment sessions. To collect data, Pittsburgh Sleep Quality
Index and Premenstrual Symptoms Screening Tool were employed and
analyze the data was done by SPSS statistical software; and paired t-test, and
repeated measures analysis. Results: The mean and standard deviation of
participants' age were 30.90 ± 8.06 for experimental group and 33.25 ± 9.58 for
control group. Based on the results of repeated measures analysis, there was a
significant difference between experimental and control groups with respect
to sleep quality and PMS. Moreover, according to the results of paired t-test,
there was a significant difference between groups in post-test and follow-up
phases with regard to sleep quality and PMS. Conclusion: Therefore,
transdiagnostic treatment has significant effects on sleep quality and PMS. It is
thus suggested that gynecologists, clinics, and medical centers concerned with
PMS patients can use the results of the present study as a guide
Keywords: Premenstrual Syndrome, Sleep Quality, Integrative
Transdiagnostic Treatment