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Table 2 Details of the comparison of the mean salivary oxytocin levels (pg/mL) between the intervention and control groups (N = 42)

From: Oxytocin levels in low-risk primiparas following breast stimulation for spontaneous onset of labor: a quasi-experimental study

 

Intervention

Control

p-value

n

Mean

SD

n

Mean

SD

First day

Base

21

159.6

101.7

17

91.8

39.5

0.009

30 min

19

165.4

130.0

17

78.3

33.9

0.010

60 min

19

132.1

85.9

17

75.0

35.1

0.013

75 min

20

147.6

89.2

16

67.1

33.2

0.001

Third day

Base

15

163.8

122.2

13

79.9

42.5

0.023

30 min

14

168.5

110.2

13

76.0

26.5

0.008

60 min

14

123.3

100.7

13

74.5

33.1

0.106

75 min

16

127.0

99.4

13

72.7

25.7

0.050

  1. An independent t-test was performed for oxytocin level analyses. Welch’s t-test was conducted when the data had unequal variances. In this table, the assumption of normality was adopted in 9 out of 16 samples. The assumption of normality was possible at baseline and at 75 min on the first day and at 30 min on the third day in both groups
  2. p-value: using the two-tailed t-test
  3. SD Standard deviation