Table 2 Comparison of work stress scores of postpartum nurses with different characteristics

Age (years)

1.318^a

0.177

 26–30

86(19.20)

90.79 ± 19.45

 31–35

228(50.89)

91.21 ± 18.18

  ≥ 36

134(29.91)

88.76 ± 17.57

Degree

0.870^a

0.420

 Junior college and below

53(11.83)

92.45 ± 20.64

 Undergraduate course

381(85.04)

90.30 ± 18.06

 Master’s degree or above

14(3.13)

85.36 ± 15.97

Professional title

1.028^a

0.359

 Junior Nurse

20(4.46)

92.80 ± 20.85

 Senior Nurse

244(54.46)

89.29 ± 19.09

 Chief nurse or above

184(41.07)

91.61 ± 16.13

Section

1.390^a

0.237

 Internal Medicine

138(30.80)

92.61 ± 17.78

 Surgery

99(22.10)

90.12 ± 18.50

 Department of Obstetrics and Gynecology

98(21.88)

88.21 ± 19.83

 Acute and critical illness

54(12.05)

92.39 ± 17.04

 Other departments

59(13.17)

87.51 ± 16.57

Mode of appointment

0.328^b

0.743

 Nurse with fixed-term contract

285(63.62)

90.61 ± 19.63

 Nurse with continuing/permanent appointment

163(36.38)

90.02 ± 16.29

Monthly household income

5.652^a

0.004

  < 10,000 yuan

171(38.17)

93.91 ± 19.54

 10,000 to 20,000 yuan

220(49.11)

88.77 ± 16.76

  > 20,000 yuan

57(12.72)

86.16 ± 18.24

Is there any intention to leave?

9.502^b

0.000

 Yes

122(27.23)

102.66 ± 18.15

 No

326(72.77)

85.81 ± 16.09

Maternity leave time (days)

3.895^a

0.021

  ≤ 90

12(2.68)

80.25 ± 14.78

 91–158

371(82.81)

89.95 ± 18.32

 >158

65(14.51)

94.82 ± 17.56

Return to work time

8.028^a

0.000

  < 1 month

26(5.80)

103.96 ± 19.55

 2–3 months

75(16.74)

101.64 ± 17.54

 4–6 months

140(31.25)

91.74 ± 17.83

 7–9 months

146(32.59)

84.19 ± 14.52

 10–12 months

61(13.62)

82.57 ± 17.00

The mode of pregnancy of this birth

0.101^b

0.920

 Natural conception

445(99.33)

90.41 ± 18.34

 Assisted reproduction

3(0.67)

89.33 ± 3.86

Fetal sex

-0.574^b

0.566

 Boy

260(58.04)

89.98 ± 17.90

 Girl

188(41.96)

90.98 ± 18.79

Age of one child (years)

1.288^a

0.288

 1–5

257(57.37)

91.57 ± 19.41

 6–10

144(32.14)

88.97 ± 17.80

  ≥ 11

47(10.49)

88.38 ± 13.28

Depressive symptoms

39.487^a

0.000

 No

176(39.29)

82.42 ± 16.28

 Mild

154(34.38)

90.75 ± 16.91

 Moderate

87(19.42)

98.00 ± 14.94

 Heavy

31(6.92)

112.61 ± 16.23