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Table 2 The accuracy and scores of knowledge and behavior before and after health education % (n)

From: The effect of health education on knowledge and behavior toward respiratory infectious diseases among students in Gansu, China: a quasi-natural experiment

Kinds

Items

Before health education

After health education

P1

P2

P3

P4

Changes

Intervention group (n = 1064)

Control group (n = 1018)

Intervention group (n = 1001)

Control group (n = 1001)

Intervention group

Control group

RID knowledge

k1. Which of the following are infectious diseases?

15.70 (167)

13.07 (133)

96.70 (968)

33.77 (338)

0.09

0.00***

0.00***

0.00***

81.01

83.64

k2. What’s the transmission way of the mumps?

61.75 (657)

40.47 (412)

41.36 (414)

1.20 (12)

0.30

0.00***

0.00***

0.69

−20.39

0.89

k3. What methods can prevent mumps?

21.52 (229)

16.60 (169)

97.30 (974)

28.87 (289)

0.00**

0.00***

0.00***

0.00***

75.78

80.70

k4. What’s the transmission way of the TB?

76.60 (815)

69.65 (709)

99.40 (995)

80.42 (805)

0.00***

0.00***

0.00***

0.00***

22.80

29.76

k5. What are the symptoms of TB?

82.43 (877)

74.95 (763)

99.90 (1000)

88.81 (889)

0.00***

0.00***

0.00***

0.00***

17.48

24.95

k6. Whether the examination and treatment of TB is free in China?

9.96 (106)

80.94 (91)

38.26 (383)

13.79 (138)

0.45

0.00***

0.00***

0.00**

28.30

−42.68

k7. Can the TB be cured?

71.81 (764)

62.28 (634)

96.00 (961)

74.93 (750)

0.00***

0.00***

0.00***

0.00***

24.20

33.73

k8. What’s the transmission way of the flu?

56.67 (603)

57.27 (583)

94.51 (946)

52.15 (522)

0.79

0.00***

0.00***

0.02*

37.83

37.24

k9. What methods can prevent flu?

22.37 (238)

16.01 (163)

16.78 (168)

11.99 (120)

0.00***

0.00**

0.00***

0.64

−5.59

−40.49

Scores of knowledge towards infectious diseases (x̄±s)

3.95 ± 1.49

3.59 ± 1.56

6.35 ± 0.76

4.31 ± 1.53

0.21

0.000***

0.00***

0.42

RID behaviors

b1. Do you wash your hands before having a meal?

48.40 (515)

34.48 (351)

67.43 (675)

38.86 (389)

0.00***

0.00***

0.00***

0.04*

19.03

32.95

b2. Do you wash your hands after you go to the toilet?

58.18 (619)

44.60 (454)

71.83 (719)

48.85 (489)

0.00***

0.00***

0.00***

0.06

13.65

27.23

b3. If you have phlegm, how do you usually deal with it?

86.75 (923)

81.14 (826)

98.70 (988)

89.11 (892)

0.07

0.00***

0.00***

0.00***

11.95

17.56

b4. Whether you cover your nose and mouth when coughing or sneezing?

48.40 (515)

38.41 (391)

71.33 (714)

47.75 (478)

0.00***

0.00***

0.00***

0.00***

22.93

32.92

b5. If you found you have a fever in school, what should you do?

25.38 (270)

13.95 (142)

64.04 (641)

17.58 (176)

0.00***

0.00***

0.00***

0.03*

38.66

50.09

b6. If you suspect yourself having TB, where will you go to see a doctor?

15.70 (167)

13.95 (142)

49.05 (491)

11.79 (118)

0.25

0.00***

0.00***

0.15

33.36

35.10

Scores of behaviors towards infectious diseases (x̄±s)

2.85 ± 1.36

2.30 ± 1.37

4.223 ± 1.443

2.56 ± 1.33

0.45

0.02*

0.01*

0.62

  1. P1 was the p-values of the comparison of knowledge and behavior towards RID between the intervention and control groups before health education; P2 was the p-values of the comparison of knowledge and behavior towards RID between the intervention and control groups after health education; P3 was the p-values of the comparison of knowledge and behavior towards RID of intervention group before-after health education; P4 was the p-values of the comparison of knowledge and behavior towards RID of control group before-after health education
  2. Inference: *** p < 0.001; ** p < 0.01; * p < 0.05