Procedures
depression, anxiety
We invited pregnant women at 12 to 20 weeks of gestation (baseline, T1) to participate in screening for symptoms of anxiety and depression during routine obstetric visits. Then, we invited eligible women to complete a demographic questionnaire and pregnancy-related anxiety scale. Random sequences were generated using a computerized random number generator. Random numbers were placed in opaque envelopes and assigned to participants according to the sequence of participant enrollment. Eligible participants who agreed to participate were randomized 1:1 to one of 2 groups: the digital GSH-MBI group (ie, usual perinatal care and mindfulness intervention) or the control group (ie, usual perinatal care) according to the random numbers in the envelopes. Data collectors were blinded to the treatment allocation. Women in the digital GSH-MBI group were told about the requirements and notices of the intervention and then started receiving the mindfulness intervention.