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Table 2 Group antenatal care effectiveness outcomes (Aim 1)

From: An effectiveness-implementation hybrid type 1 trial assessing the impact of group versus individual antenatal care on maternal and infant outcomes in Malawi

Construct

Operational Measure

Time

Sourcea

1

2

3

4

H1. Less prematurity and mortality

Preterm Birth (Prim)

< 37 weeks gestational age

  

•

 

H, S

Spontaneous abortion

Pregnancy loss < 20 weeks

  

•

 

H, S

Stillbirth

Baby born with no signs of life ≤28 weeks gestation [67]

  

•

 

H, S

Low birthweight

< 2500 g, measured within 24 h of birth

  

•

 

H, S

Neonatal death

Newborn dies with 28 days after birth

  

•

•

H, S

Maternal mortality

Death in pregnancy or ≤ 42 days of end of pregnancy

 

•

•

 

H, S

H2. More positive HIV prevention outcomes

Partner HIV Test (Prim)

Proportion of partners tested during pregnancy

 

•

  

S

Women, HIV Test

Initial HIV test; If seronegative, repeated in 3rd trimester

•

•

   

HIV Knowledge

General knowledge (5 items)

•

•

   

PMTCT Knowledge

Mother-to-child transmission (4 items)

•

•

   

Sexual Health Behaviors

Condom use; Partner communication (5 yes/no items)

•

•

•

•

S

H3. Optimal secondary outcomes

Antenatal & postnatal care

Attendance; birth in a health facility (yes/no)

  

•

 

H, S

21 services received; 18 educational topics (modified)

 

•

  

Satisfaction with Care

10-items; 5-point Likert scale; Range 10–50, α =0.980

 

•

  

S

Pregnancy Knowledge

25 items based on content (modified for this study)

•

•

  

S

Healthy Behaviors

14 recommended behaviors (modified for this study)

•

•

  

S

Mental Distress

Self Reporting Questionnaire [68,69,70,71]; 20 items; α = 0.789

•

•

•

•

S

Anemia

Hemoglobin (Hb), HemoCue® (Hb < 11//dL) [72]

•

•

•

•

T

Hypertension

Blood pressure changes and symptoms

•

•

•

 

H, S

Postpartum bleeding

Bleeding (> 500 ml); hemorrhage (> 1000 ml)

  

•

 

H, S

Exclusive Breastfeeding

Exclusive breastfeeding duration, # days

   

•

S

Family Planning

Using a family planning method

   

•

S

Early repeat pregnancy

Negative test and no reported pregnancy loss

   

•

S, T

H4. Exploratory: Successful transition in continuum of HIV care (subset of HIV-infected women)

Women

Received ART medication

•

•

•

•

S

Infant

Infant HIV test, status known

  

•

•

H, S

  1. aSource: H Health record, S Self-report survey, T Medical test