Baseline demographic, lifestyle and clinical characteristics of study participants included at various study follow-up phases.^*

<p>Abbreviations: BMI, body mass index (calculated as weight in kilograms divided by height in meters squared); MDD, major depressive disorder; OCP, oral contraceptive pill.</p>*<p>All values expressed as mean (SD), unless otherwise specified.</p>‡<p>Calcium intake calculated from dietary and supplement sources.</p>§<p>Index of physical fitness, meters covered in 12-minut