Table 1 Demographic characteristics of participants and the turnover intention(N = 276)

Gender

 Male

38(13.8)

10.83 ± 3.35

0.677

0.499

 Female

238(86.2)

10.47 ± 3.01

Age(year)

 < 30

44(15.9)

10.64 ± 2.62

0.123

0.946

 30–39

40(14.5)

10.43 ± 2.72

 40–49

108(39.1)

10.41 ± 2.97

 ≥ 50

84(30.4)

10.64 ± 3.53

Years of work

 ≤ 1 ^a

107(38.8)

10.29 ± 2.90

4.062

0.003

 > 1 and ≤ 3 ^b

56(20.3)

10.61 ± 3.08

 > 3 and ≤ 5 ^c

21(7.6)

11.35 ± 1.69

 > 5 and ≤ 10 ^d

45(16.3)

11.74 ± 3.42

 > 10 ^e

47(17.0)

9.41 ± 3.09

d > e

Educational level

 Elementary school

33(12.0)

10.79 ± 3.67

0.102

0.959

 Middle school

130(47.1)

10.46 ± 2.99

 High school

47(17.0)

10.52 ± 3.30

 College and above

66(23.9)

10.51 ± 2.71

Marital status

 Unmarried

45(16.3)

10.89 ± 2.54

1.177

0.319

 Married

227(82.2)

10.41 ± 3.15

 Divorced

3(1.1)

13.33 ± 1.53

 Widowed

1(0.4)

11.00 ± 0.00

Residence

 Countryside

196(71.0)

10.73 ± 2.98

1.799

0.073

 City

80(29.0)

10.00 ± 3.20

Monthly income (RMB)

 ≤ 3000

61(22.1)

10.32 ± 2.96

3.775

0.011

 3001–4000

113(40.9)

10.76 ± 2.91

 4001–5000

67(24.3)

11.06 ± 3.07

 > 5000

35(12.7)

9.06 ± 3.31

d < b, c

The number of nursing trainings received received

 ≤ 2

142(51.4)

10.87 ± 3.10

1.952

0.052

 > 2

134(48.6)

10.15 ± 2.98

Professional qualification certificate

 Yes

137(49.6)

10.96 ± 2.99

-2.410

0.017

 No

139(50.4)

10.08 ± 3.07

Family support

 Yes

244(88.4)

10.40 ± 3.09

1.812

0.165

 No

7(2.5)

12.14 ± 2.34

 Uncertain

25(9.1)

11.21 ± 2.70

The number of residents cared for per day

 ≤ 10

212(76.8)

10.34 ± 3.20

-2.120

0.036

 > 10

64(23.2)

11.13 ± 2.43

The extent to which knowledge meets aged care needs

 Absolutely

53(19.2)

10.75 ± 3.84

1.276

0.280

 Mostly

164(59.4)

10.70 ± 2.80

 Partly

45(16.3)

10.01 ± 2.92

 Not at all

12(4.3)

9.00 ± 3.02

 Unknown

2(0.7)

10.50 ± 0.71