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Table 1 Secondary outcomes for Pregnancy Circles Trial

From: Group antenatal care (Pregnancy Circles) for diverse and disadvantaged women: study protocol for a randomised controlled trial with integral process and economic evaluations

Domain Validated measure (if using) Baseline First follow up - 35 weeks gestation Birth – routine maternity data Second follow up - 3 months postnatal
Women’s empowerment Pregnancy-related Empowerment Scale (PRES) [28]
Women’s satisfaction with maternity care Friends and Family Test [29]
Continuity of antenatal care  
Attendance at antenatal care  
Health service usage from patient records  
Health service usage (self-reported)  
Social support The Duke-UNC Functional Social Support Questionnaire [30]
Self-efficacy Pearlin Mastery Scale [31]
Prenatal stress Revised Prenatal Distress scale [32]
Spontaneous vaginal delivery (SVD)  
Caesarean delivery  
Infant birth weight, defined as low if less than 2500 g  
Place of birth  
Breast feeding initiation  
Breast feeding continuation and exclusivity  
Postnatal depression Edinburgh Postnatal Depression Scale (EPDS) [33]
Health Literacy Health Literacy Questionnaire (HLQ) [34] (1 domain)
Postnatal symptoms Postnatal symptoms checklist (National Maternity Survey 2010) [35]
Emotional wellbeing Short Warwick-Edinburgh
Mental Wellbeing Scale (SWEMWBS) [36]
Live baby (i.e. no stillbirth after 24 completed weeks of pregnancy and no neonatal death within 28 days of the birth)  
Born at term (37 weeks and above)  
Appropriate weight for gestational age (GROW centile > 9.99 & < 90.01)  
Not admitted for neonatal intensive care  
Health related quality of life EQ5D-5 L [37]