Susan R Johnson

BACKGROUND: Moderate to severe premenstrual syndrome (PMS) affects 8-20 percent of premenopausal women. Previous studies suggest that high dietary vitamin D intake may reduce risk. However, vitamin D status is influenced by both dietary vit…

Iron, potassium, zinc, and other minerals might impact the development of premenstrual syndrome (PMS) through multiple mechanisms, but few studies have evaluated these relations. We conducted a case-control study nested within the prospecti…

BACKGROUND: Thiamine, riboflavin, niacin, vitamin B-6, folate, and vitamin B-12 are required to synthesize neurotransmitters that are potentially involved in the pathophysiology of premenstrual syndrome (PMS). OBJECTIVE: The objective was …

BACKGROUND: Moderate to severe premenstrual syndrome (PMS) affects 8%-20% of premenopausal women and causes substantial levels of impairment, but few modifiable risk factors for PMS have been identified. Adiposity may impact risk through th…

BACKGROUND: Relatively little is known about factors that influence the initial development of premenstrual syndrome (PMS) and premenstrual dysphoric disorder (PMDD), although these conditions are common in reproductive age women and are as…

Moderate to severe premenstrual syndrome (PMS) affects as many as 20% of premenopausal women. Although smoking may be more common in women with PMS, it is unknown whether smoking is involved in PMS etiology. In 1991-2001, the authors conduc…

OBJECTIVE: To describe the prevalence, severity, course and predictive factors of primary dysmenorrhoea in women of all reproductive ages. DESIGN: Prospective mailed surveys in 1985 and 1991. SETTING: University of Iowa, College of Nursin…