Table 2 Impact of interventions on infectious disease-related conditions in children and adolescents

Individual level

Wash your hands before meals (yes)

Baseline(%)

46.51

49.02

46.90

48.86

46.70

48.94

Post-intervention(%)

47.77

49.04

48.96

49.35

48.36

49.19

Change (%)

1.26

0.02

2.06

0.49

1.66

0.25

Effect for OR

0.95(0.89–1.02)

0.94(0.87–1.01)

0.94(0.90–0.99)

p-values

0.159

0.073

0.024

Wash your hands when you go home (yes)

Baseline(%)

69.56

70.08

73.69

72.30

71.59

71.17

Post-intervention(%)

73.49

72.29

76.98

75.08

75.21

73.66

Change (%)

3.93

2.21

3.29

2.78

3.62

2.49

Effect for OR

0.92(0.85–0.99)

0.97(0.89–1.05)

0.94(0.89–0.99)

p-values

0.028

0.414

0.032

Interpersonal level

No sharing of towels or bedding with others (yes)

Baseline(%)

64.95

62.38

68.25

66.44

66.60

64.40

Post-intervention(%)

63.23

61.57

66.31

66.92

64.75

64.23

Change (%)

-1.72

-0.81

-1.94

0.48

-1.85

-0.17

Effect for OR

1.04(0.92–1.19)

1.12(0.98–1.27)

1.08(0.98–1.18)

p-values

0.514

0.104

1.113

Classmates around you who are sick or not fully recovered still come to school (yes)

Baseline(%)

71.87

70.47

75.11

74.54

73.49

72.51

Post-intervention(%)

71.81

71.38

74.09

74.86

72.95

73.12

Change (%)

-0.06

0.91

-1.02

0.32

-0.54

0.61

Effect for OR

1.05(0.95–1.16)

1.08 (0.977-1.20)

1.06(0.99–1.15)

p-values

0.359

0.152

0.096

Organization level

Acquire knowledge about infectious diseases mainly from course studies and lectures (yes)

Baseline(%)

67.09

65.99

68.56

68.11

67.81

67.04

Post-intervention(%)

72.81

69.35

73.48

72.03

73.14

70.67

Change (%)

5.72

3.36

4.92

3.92

5.33

3.63

Effect for OR

0.89(0.82–0.96)

0.95(0.88–1.03)

0.92(0.87–0.97)

p-values

0.003

0.192

0.002

Acquire knowledge about infectious diseases mainly from teachers (yes)

Baseline(%)

69.71

70.96

72.61

74.91

71.14

72.92

Post-intervention(%)

74.56

73.25

79.11

79.12

76.82

76.17

Change (%)

4.85

2.29

6.50

4.21

5.68

3.25

Effect for OR

0.88(0.81–0.96)

0.89(0.82–0.97)

0.86(0.83–0.94)

p-values

0.002

0.008

0.001

Community level

When you want to spit in a public place, you spit on a tissue or handkerchief (yes)

Baseline(%)

49.77

51.54

67.36

67.20

58.43

59.26

Post-intervention(%)

54.81

54.78

72.29

71.64

63.42

63.09

Change (%)

5.04

3.24

4.93

4.44

4.99

3.83

Effect for OR

0.93(0.87-1.00)

0.98(0.90–1.05)

0.95(0.91-1.00)

p-values

0.042

0.543

0.064

Cover your cough or sneeze with a tissue or handkerchief in public places (yes)

Baseline(%)

31.52

32.13

34.48

34.75

32.98

33.43

Post-intervention(%)

34.01

33.56

38.58

36.72

36.26

35.12

Change (%)

2.49

1.43

4.10

1.97

3.28

1.69

Effect for OR

0.95(0.88–1.03)

0.91(0.85–0.98)

0.93(0.88–0.98)

p-values

0.198

0.011

0.008

Policy level

If you were sick, you will told the school teacher (yes)

Baseline(%)

38.87

41.31

35.87

37.65

37.40

39.51

Post-intervention(%)

39.21

40.70

36.12

37.47

37.69

39.11

Change (%)

0.34

-0.61

0.25

-0.18

0.29

-0.40

Effect for OR

0.96(0.89–1.03)

0.98(0.90–1.06)

0.97(0.92–1.02)

p-values

0.264

0.558

0.225

When resuming classes due to illness, submit a class resumption certificate to the teacher (yes)

Baseline(%)

34.95

35.31

33.61

33.42

34.29

34.38

Post-intervention(%)

37.80

38.21

36.82

37.36

37.32

37.79

Change (%)

2.85

2.90

3.21

3.94

3.03

3.41

Effect for OR

1.00(0.93–1.08)

1.03(0.95–1.12)

1.02(0.96–1.07)

p-values

0.946

0.416

0.536