A Randomized Controlled Trial of the "Psychological Training Camp & Obstetrician-Led Psychoprenatal Intervention (PICONI)" Stepwise Intervention Model for Depression and Anxiety During Pregnancy.

The intervention group used the "Psychological Training Camp \& Obstetrician-Led Psychoprenatal Intervention (PICONI)" stepwise care model, which incorporated cognitive-behavioral therapy, mindfulness,etc., with the Psychic Fitness Camp being a self-help learning experience and the Mood Scan being a perinatal clinic doctor guiding pregnant women in unhealthy thinking alternatives and behavior design. Metabolic markers of perinatal depression anxiety and the mitigating effects of the stepped care model were explored by collecting blood and urine samples from the study participants during early, mid and late pregnancy respectively, samples were collected and stored in a refrigerator at -80 degrees Celsius.