Table 2 Summary of secondary outcome measures, data collection time points and tools

1

Women’s cultural safety views and experiences

SUR

QUAL

X

X

2

Women’s experiences of (dis)respect

SUR

QUAL

X

X

3

Women’s experiences of discrimination/racism

SUR

QUAL

X

X

X

4

Women’s feelings of control during labour and birth (rated on a 0–10 scale)

SUR

QUAL

X

X

5

Smoking status at first antenatal visit (yes/no)

SUR

MEDREC

X

(At first AN visit, < 20 weeks, 20 + 1 wks - birth)

X

X

6

Experienced continuity of care measured with 3 subscale scores of the Nijmegen Continuity Questionnaire (NCQ) pregnancy adaptation

SUR

QUAL

X

X

7

Pharmacological analgesia in labour (regional [epidural/spinal] and/or narcotic analgesia, nitrous oxide gas)

MEDREC

X

8

Onset of labour (induced, no labour, spontaneous)

MEDREC

X

9

Augmentation of labour with artificial oxytocin

MEDREC

X

10

Place of birth (e.g. home, birth centre, hospital)

MEDREC

X

11

Mode of birth (non-instrumental vaginal birth, instrumental vaginal birth, caesarean section)

MEDREC

X

12

Water birth (yes/no)

MEDREC

X

13

Perineal status (intact/1st degree tear, 2nd degree tear, 3rd/4th degree tear)

MEDREC

X

14

Episiotomy (yes/no)

MEDREC

X

15

Management of third stage labour (active, physiological)

MEDREC

X

16

Postpartum hemorrhage (blood loss < 500; 500–999; 1000–1499; 1500 ml and/or with blood transfusion

MEDREC

X DC – 6 wks

17

Mother admission to hospital up to 6 weeks postpartum (yes/no)

MEDREC

X – 6 wks

18

Women who had a known midwife in labour and/or birth (yes/no)

SUR

X

19

Birthing and maternity care experiences

SUR

QUAL

X

X

X

X

20

Maternal parenting self-efficacy

SUR

QUAL

X

X

21

Low birth weight (< 2500 g, 2500 g or more)

MEDREC

X

22

Birth weight (grams, mean, sd)

MEDREC

X

23

Apgar score 5 minutes (< 7, 7 or above)

MEDREC

X

24

Admission to a separate neonatal nursery (yes/no)

MEDREC

X - DC

25

Breastfeeding status at 2 and 6 months postpartum (exclusive, mixed, formula only, other)

SUR

X

X

26

Infant admission to hospital up to 28 days of age (yes/no)

MEDREC

X – 28 days

27

Length of facility stay for mothers and infants following birth (mean, median, range)

MEDREC

DC

28

The Edinburgh Postnatal Depression Scale (EPDS) score (could also be assessed at other timepoint(s) as clinically indicated)

MEDREC

SUR

First AN visit

X

X

29

Negative Life Events Scale (NLES) (full extended version) score

SUR

X

X

30

The modified Kessler psychological distress scale (K5) score

SUR

X

X

X

31

Women’s cultural connection and identity

SUR

QUAL

X

X

X

32

The feasibility and acceptability of an established Birth Centre assessed by the proportion of eligible women in Birthing on Country care who start labour in the birth centre

MEDREC

QUAL

X

X

33

The proportion of women who transferred from the birth centre/model of care at any time and for any reason

MEDREC

X DC

34

Mean cost of care per mother/infant pair

Health economic evaluation takes a health system perspective and will conduct a cost-effectiveness analysis. Costs to be included are antenatal care, birth, postnatal care costs; readmissions costs within 6 weeks postpartum; infants’ special care nursery and readmission.

First AN visit

Until 6 weeks (mother)

28 days (baby)