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Table 2 Minimum detectable differences in means (standard deviation units, s.d.) for comparison of Intensive (exclusive or mostly) breastfeeding vs. Intensive (exclusive or mixed) formula infant feeding (two-sided test, significance level = 0.05, power = 0.80). [Total number of mother-infant pairs enrolled with one or more study exams; n = 466]

From: The study of women, infant feeding and type 2 diabetes after GDM pregnancy and growth of their offspring (SWIFT Offspring study): prospective design, methodology and baseline characteristics

Time:

At Birth

6-9 weeks

6 months

12 months

Sample Size

N = 466

N = 462

N = 378

N = 423

SD units

0.28

0.28

0.31

0.29