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Table 2 The methods and measures of data collection at baseline and 6, 12, and 24 months of age

From: A 3-Arm randomised controlled trial of Communicating Healthy Beginnings Advice by Telephone (CHAT) to mothers with infants to prevent childhood obesity

Phase

Phase 1 Study

Phase 2 Study

Time

Baseline

6 months

12 months

24 months

Methods

CATI

CATI

CATI

Face-to-face interview

Main Domains/Measures

 Family demographics

X

   

 Mother’s knowledge and intention regarding breastfeeding

X

   

 Mother’s dietary behaviours

X

 

X

X

 Mother’s physical activity and screen time

Xa

 

X

X

 Mother’s height and weight

Xa

 

X

X

 Breastfeeding

 

X

X

X

 Introduction of solids

 

X

  

 Tummy timeb

 

X

  

 Infant feeding practices

 

X

X

 

 Parent-child interaction

 

X

X

 

 Child’s eating habits

  

X

X

 Child’s physical activity and screen time

  

X

X

 Child’s sleep patterns

  

X

X

 Child’s length and weight

 

X

X

X

  1. a before pregnancy
  2. b a colloquial term used to encourage parents to ensure that their babies spend time in the prone position
  3. CATI computer assisted telephone interviewing