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Table 5 Secondary outcomes: Milk volumes at study time points days 14 and 28 in the two postdelivery groups

From: Role of days postdelivery on breast milk production: a secondary analysis from the EMPOWER trial

Milk volume parameters

8–14 days postdelivery

N = 44

15–21 days postdelivery

N = 46

p - value*

Milk volume at start of trial (ml)

Mean (SD)

100.9 (80.9)

134.9 (105.0)

p = 0.16

Volume on study treatment day 14 (ml)

Mean (SD)

237.1 (169.6)

251.1 (191.6)

p = 0.79

Volume on study treatment day 28 (ml)

Mean (SD)

281.4 (202.3)

299.9 (237.0)

p = 0.85

Mean % volume change day 0 to day 14 (%) (SD)

256.8 (412.5)

173.1 (290.8)

p = 0.16

Mean % volume change day 15 to day 28 (%) (SD)

30.5 (42.4)

38.3 (73.7)

p = 0.90

  1. * p - values based on Wilcoxon rank sum test
  2. Ml Millilitres, SD Standard deviation