Correction of the name of author: A systematic review of the role of vitamin D and calcium in premenstrual syndrome

The name of 3rd author was published incorrectly. The authors apologize for any inconvenience that it may have caused.

A systematic review of the role of vitamin D and calcium in premenstrual syndrome

Premenstrual syndrome (PMS) is a common disorder that affects millions of women of reproductive age worldwide. In recent years, there has been a focus on finding accessible, acceptable, and cost-effective therapeutic approaches with minimal side effects to treat the symptoms of PMS. This systematic review aimed to investigate the role of calcium and vitamin D in Premenstrual syndrome. The PubMed, EMBASE, Web of Science, Scopus, Science Direct, and Google Scholar databases were systematically searched for relevant articles from clinical trial, case-control, and cross-sectional studies. The Strengthening the Reporting of Observational Studies in Epidemiology checklist was used to assess the quality of the selected papers. A total of 28 eligible high-quality papers were reviewed. Low serum levels of calcium and vitamin D during the luteal phase of the menstrual cycle were found to cause or exacerbate the symptoms of PMS. Therefore, the administration of calcium and vitamin D supplements or the use of a diet rich in these two substances can restore serum levels and eliminate or reduce the symptoms of PMS. Calcium and vitamin D supplementation are recommended as an inexpensive, low-risk, acceptable, and accessible approach to eliminate or reduce the symptoms of PMS.

Evaluation of factors associated with sexual function in infertile women

Background: Infertility is a major and problem influencing different aspects of couples life, especially those of women. Sexual dysfunction is the silent partner of infertility. This study aimed to identify the above-mentioned factors to make necessary decisions and perform efficient interventions to improve the sexual health of infertile women. This study investigated the factors influencing sexual dysfunction in infertile women in Mashhad, Iran

Materials and Methods: This cross-sectional study was conducted on 85 infertile women visiting governmental Infertility Clinic and Research Center in Mashhad, Iran. The convenience sampling method was used in this study. The research tools included a demographic and infertility information form, a sexual self-efficacy questionnaire based on Schwarzer's General Self-Efficacy Scale, Female Sexual Function Index [FSFI], and Evaluation and Nurturing Relationship Issues, Communication, and Happiness [ENRICH] Marital Satisfaction Scale. The descriptive statistical tests and logistic regression method were used to analyze data

Results: The mean age of women was 31.18 +/- 5.56 years old. The majority of participants [36.7%] had higher educations, and 60% of them were housewives. Most of their husbands [49.4%] were self-employed. The mean period of infertility awareness was 6.02 +/- 4.47 years, and the mean period of infertility treatment was 4.11 +/- 4.46 years. The following variables influenced the sexual function of infertile women: sexual self-efficacy, sexual satisfaction, marital satisfaction, the educational level of both wife and husband, income, satisfaction with spouse appearance, and the high costs of infertility treatment

Conclusion: The findings indicated that some factors such as sexual self-efficacy, marital satisfaction, sexual satisfac- tion, education, and cost of infertility treatment are associated with sexual function in infertile women