Table 5 Comparison of knowledge on COVID-19 prevention and control measures between the two groups

Stay at home after the outbreak to prevent infection

160 (80)

172 (86.00)

37 (18.5)

21 (10.50)

1 (0.5)

5 (2.50)

2 (1.00)

2 (1.00)

−1.467

0.142

Wear a mask when you go out

177 (88.5)

198 (99.00)

17 (8.5)

2 (1.00)

5 (2.5)

0 (0)

1 (0.5)

0 (0)

−4.343

<0.001

Wash hands frequently

163 (81.5)

188 (94.00)

37 (18.5)

11 (5.50)

0 (0)

1 (0.50)

0 (0)

0 (0)

−3.779

<0.001

When you have a fever, cough and other symptoms, you will see a doctor in time

158 (79)

184 (92.00)

27 (13.5)

12 (6.00)

10 (5)

4 (2.00)

5 (2.5)

0 (0)

−3.742

<0.001

Monitor body temperature

83 (41.5)

145 (72.50)

79 (39.5)

35 (17.50)

31 (15.5)

19 (9.50)

7 (3.5)

1 (0.50)

−5.963

<0.001

Open the window for ventilation to keep the air fresh

130 (65)

184 (92.00)

66 (33)

15 (7.50)

3 (1.5)

1 (0.50)

1 (0.5)

0 (0)

−6.550

<0.001

Have a reasonable rest and do not stay up late

128 (64)

156 (78.00)

53 (26.5)

29 (14.50)

11 (5.5)

13 (6.50)

8 (4)

2 (1.00)

−2.955

0.003

Proper exercise

101 (50.5)

147 (73.50)

65 (32.5)

26 (13.00)

31 (15.5)

25 (12.50)

3 (1.5)

2 (1.00)

−4.174

<0.001

Home environment disinfection

73 (36.5)

123 (61.50)

88 (44)

43 (21.50)

33 (16.5)

30 (15.00)

6 (3)

4 (2.00)

−4.113

<0.001

Reduce the environment of de-sealing and poor ventilation

129 (64.5)

177 (88.50)

37 (18.5)

20 (10.00)

12 (6.00)

3 (1.50)

22 (11)

0 (0)

−5.973

<0.001

Reduce de-sealing and poor ventilation in the environment

136 (68)

181 (90.50)

32 (16)

15 (7.50)

10 (5)

3 (1.50)

22 (11)

1 (0.50)

−5.752

<0.001

Avoid direct contact with public facilities that may be infected, such as elevator buttons, stair handrails, etc.

126 (63)

161 (80.50)

38 (19)

31 (15.50)

16 (8)

8 (4.00)

20 (10)

0 (0)

−4.360

<0.001

Take the initiative to isolate after contact with high-risk groups

150 (75)

189 (94.50)

20 (10)

9 (4.50)

18 (9)

1 (0.50)

12 (6)

1 (0.50)

−5.551

<0.001

Cover nose and mouth when coughing or spraying sneezing

151 (75.5)

188 (94.00)

37 (18.5)

12 (6.00)

8 (4)

0 (0)

4 (2)

0 (0)

−5.228

<0.001

Keep warm and avoid catching cold

157 (78.5)

190 (95.00)

39 (19.5)

10 (5.00)

2 (1)

0 (0)

2 (1)

0 (0)

−4.887

<0.001