Table 2 baseline sociodemographic characteristics

Self-reported data (all participants, n = 23)

 Age (mean, sd)

33.8 (5.2)

ρ

0.50

0.014

 Gender

  Female

15 (65.2)

U

42

0.245

  Male

8 (34.8)

 Employment^a

  Full time work

13 (56.5)

Χ²

7.50

0.058

  Part time work

7 (30.4)

  Home duties

2 (8.7)

  Unemployed

1 (4.4)

 Ethnicity

  Asian or Asian British

2 (8.7)

Χ²

3.34

0.362

  Black or Black British

2 (8.7)

  Chinese

2 (8.7)

  Mixed race

1 (4.4)

  White British

16 (69.6)

 English language

  Native English speaker

19 (82.6)

U

24

0.256

  English as a second language

4 (17.4)

 Owns a smartphone

23 (100.0)

–

–

–

 Borrowed a study phone

6 (26.1)

U

48

0.834

 Past depression

5 (21.7)

U

18

0.044

 Past psychiatric medication

6 (26.1)

U

22

0.042

 Past talking therapy

6 (26.1)

U

49

0.889

Casenote data (for pregnant women with casenotes available, n = 13)^b

 Body Mass Index (mean, sd)

27.1 (9.4)

 Major obstetric complications

2 (15.4)

 Mode of delivery

  Vaginal

6 (46.2)

  Caesarean section

7 (53.9)

 Parity

  One

2 (15.4)

  Two or more

8 (61.5)

  Missing data

3 (23.1)

 Booking appointment: any depression

3 (23.1)

 Booking appointment: any anxiety/worry

5 (38.5)

 Any psychiatric history

6 (46.2)