title: Effect of Combined Use of Calcium and Vitamin B6 on Premenstrual Syndrome Symptoms: a Randomized Clinical Trial.
abstract: BACKGROUND
  Premenstrual syndrome is one of the most common disorders in women, which includes a group of psychological and physical symptoms. The aim of this study was to examine the impact of combined use of calcium and vitamin B6 on premenstrual syndrome symptoms.
  
  
  METHODS
  This double blind randomized controlled was carried out on 76 students of Hamadan University of Medical Sciences. Students were randomly allocated to two groups. (38 people in each group). Student in intervention groups received calcium tablet (500mg) and vitamin B6 (40 mg) and student in intervention groups received only vitamin B6 twice a day for two consecutive months. The symptoms were assessed by Beck depression inventory (BDI) and daily symptom records (DSR) questionnaires. Analyses were carried out by test-retest method, Chi-square, Mann-Whitney, Independent t-test, and paired t-test using SPSS software ver.13. Results The result showed that although the severity of symptoms decreased in both groups, but this reduction was more significant in the combined calcium and vitamin B6 group.
  
  
  CONCLUSIONS
  According to the result, using of combination of calcium and vitamin B6 leads to better controlling of the premenstrual syndrome symptoms. Therefore it is recommended for women who suffer from these syndromes.
authors.affiliation: Mother and Child Care Research Center, Department of Midwifery, Faculty of Nursing and Midwifery, Hamadan University of Medical Sciences, Hamadan, Iran.
authors.forename: Seyedeh Zahra
authors.initials: SZ
authors.lastname: Masoumi
authors.affiliation: Department of Midwifery, Faculty of Nursing and Midwifery, Hamadan University of Medical Sciences, Hamadan, Iran.
authors.forename: Maryam
authors.initials: M
authors.lastname: Ataollahi
authors.affiliation: Mother and Child Care Research Center, Department of Nursing, Faculty of Nursing and Midwifery, Hamadan University of Medical Sciences, Hamadan, Iran.
authors.forename: Khodayar
authors.initials: K
authors.lastname: Oshvandi
keywords: Calcium; Menstrual cycle; Premenstrual syndrome; Vitamin B6