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Table 1 Participant characteristics

From: Effectiveness of a breastfeeding program for mothers returning to work in Japan: a quasi-experimental study

Variables Program group
(n = 48)
Pamphlet group
(n = 46)
Comparison group
(n = 47)
P value
Maternal agea, y (SD) 34.0 (3.5) 34.8 (3.9) 34.2 (3.9) 0.58
Parity statusb, n (%)
 Primiparous 34 (70.8) 32 (69.6) 24 (51.1) 0.08
 Multiparous 14 (29.2) 14 (30.4) 23 (48.9)
Employment statusb, n (%)
 Full time 42 (87.5) 36 (78.3) 35 (74.5) 0.26
 Part time 6 (12.5) 10 (21.7) 12 (25.5)
Education levelc, n (%)
 University or college graguate 47 (97.9) 44 (95.7) 40 (85.1) 0.06
 Junior high or high school graduate 1 (2.1) 2 (4.3) 7 (14.9)
Smoking statusc, n (%)
 Yes 48 (100.0) 46 (100.0) 45 (97.8) 0.66
 No 0 (0.0) 0 (0.0) 1 (2.2)
 No answer    1
Previous breastfeeding experienceb, n (%)
 Yes 14 (29.2) 14 (30.4) 23 (48.9) 0.08
 No 34 (70.8) 32 (69.6) 24 (51.1)
  1. SD Standard deviation
  2. aOne-way analysis of variance, bChi-square test, cFisher’s exact test
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