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Table 3 Sample Size Calculations

From: Family Spirit Nurture (FSN) – a randomized controlled trial to prevent early childhood obesity in American Indian populations: trial rationale and study protocol

Outcome Measures

Detectable Differences

% Mothers initiated breastfeeding

14%

% Exclusive breastfeeding through 6 months of age

15%

Mean breastfeeding duration

23 days

% Introduced SSBs

13%

Infant/Toddler Responsive Feeding Scale:

• Responsive

• Forceful

• Indulgent

• Restrictive

• Uninvolved

0.20 points

0.24 points

0.22 points

0.20 points

0.32 points

BMI z-score

0.33 (SDs)