Figure 1. Timetable of the Stress Checklist KM, Salivary Secretory IgA Level, Cortisol Level, and Premenstrual Syndrome Assessment During the Menstrual Cycle Phase.

Abbreviations: BBT, Basal Body Temperature; SCL-KM, Stress Checklist KM; S-IgA, Secretory Immunoglobulin A. Day 1, onset of menses and start of the menstrual cycle. The preceding menstrual phase was confirmed at the start of menstruation.