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Table 3 Comparison of differences in confidence scores between pre- and post-DVD in intervention group and control group

From: A randomised controlled trial of the effectiveness of a breastfeeding training DVD on improving breastfeeding knowledge and confidence among healthcare professionals in China

Items IG (n = 69) CG (n = 66)
Pre-
DVD
mean (SD)
Post-
DVD
mean (SD)
p-value Pre-
DVD
mean (SD)
Post-
DVD
Mean (SD)
p-value
P & A
(range 0–60)
49.93 (8.48) 53.90
(6.93)
t (68) = −4.79
p < 0.01
50.68
(8.62)
50.82
(8.89)
t (65) = −0.36
p = 0.72
HE
(range 0–20)
16.57 (3.29) 17.91 (2.51) t (68) = −4.12
p < 0.01
17.59 (2.85) 17.49 (2.77) t (67) = 0.49
p = 0.62
Total
(range 0–80)
66.49 (11.27) 71.81 (9.33) t (68) = −4.92
p < 0.01
68.33 (11.08) 68.35
(11.40)
t (65) = −0.25
p = 0.98
  1. Cases were deleted where there was missing data on the dependent variable