Association of Premenstrual Syndrome with Calcium Intake and Dysmenorrhea: A Cross-Sectional Study of High School Female Students in Karachi
Objectives:To determine the prevalence of PMS among adolescent high school girls in Karachi and to evaluate its association with dysmenorrhea and dietary calcium intake.Methods:A cross-sectional study was conducted from April 2025 to December 2025 among 185 unmarried female students aged 14–19 years from selected high...