Two volunteers who did not complete study visits after relocation to the urban campus were excluded from data analysis, leaving a total of 39 participants.
Among these, 128 were excluded due to relocation or being lost-to-follow-up, twin delivery, death of infant or mother before 3 weeks after birth.
Of the 353 patients (68.3%%) who returned a completed form, eight were excluded due to relocation (n = 5), death (n = 1), or refusal to participate (n = 2).
Among these, 139 were excluded due to relocation or being lost-to-follow-up, twin delivery, death of the infant or mother before 3 weeks after birth, or severe malformations (additional file 1, figure S1).
At the 3-week assessment the mother-infant pairs were assessed and a total of 139 were excluded due to relocation or being lost-to-follow-up (95), stillbirth (9), twin delivery (11) or death of the infant (23) or mother (1) before 3 weeks after birth.
Among the 514 pregnant women who composed the initial cohort, 10 were excluded because of miscarriage, stillbirth, relocation, or voluntary withdrawal from the study before follow-up.
Exclusion criteria included participation in another psychological treatment programme and an inability to finish the treatment due to relocation – several people changed their accommodation unpredictably and so were excluded.
In total, 56.16% of patients (54 patients) within the control group had not completed the follow-up visits for various reasons (relocation, impairment because of age, follow-up performed elsewhere) and therefore were excluded.
Ten registered women were excluded due to miscarriage and stillbirth (n = 2), relocation (n = 1), or voluntary withdrawal (n = 7) from the study before follow-up.
During the relocation process, we isolated readings with arrival-time residuals exceeding 2 s and these observations were excluded from later stages.
