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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