Table 1 Overview of participant characteristics (Ns)

1

Urban

25-30 yrs. = 1

31-35 yrs. = 2

36-40 yrs. = 3

White British = 3

White New Zealander = 1

White European = 2

Postpartum (primiparous) = 6

2

Rural

25-30 yrs. = 1

31-35 yrs. = 1

36-40 yrs. = 1

White British = 2

White & Black African = 1

Pregnant (multiparous) = 1

Postpartum (multiparous) = 2

3

Rural

31-35 yrs. = 1

36-40 yrs. = 1

White British = 2

Pregnant (multiparous) = 1

Postpartum (multiparous) = 1

4

Urban

25-30 yrs. = 1

31-35 yrs. = 4

36-40 yrs. = 1

White British = 5

White European = 1

Postpartum (primiparous) = 5

Postpartum (multiparous) = 1

5

Urban

31-35 yrs. = 1

36-40 yrs. = 4

41-45 yrs. = 1

White British = 4

Black African = 1

White New Zealander = 1

Postpartum (primiparous) = 6