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Table 3 Diphtheria protectivity (≥0.1 IU/mL) rates of subjects by demographic characteristics

From: Seroprevalence of diphtheria toxoid IgG antibodies in the Malaysian population

 

All

Children (2–17 years old)

Adults (18–60 years old)

Variable

Protected

Susceptible

Protected

Susceptible

Protected

Susceptible

 

n

% (95% CI)

n

% (95% CI)

n

% (95% CI)

n

% (95% CI)

n

% (95% CI)

n

% (95% CI)

Overall

1424

42.9 (41.3, 44.6)

1893

57.1 (55.4, 58.7)

629

61.9 (58.9,64.8)

387

38.1 (35.2, 41.1)

795

34.6 (32.6, 36.5)

1506

65.4 (63.5, 67.4)

Sociodemographic

Gender

 

**

       

*

  

 Male

645

47.3 (44.6,49.9)

719

52.7 (50.1, 55.4)

331

62.5 (58.2, 66.5)

199

37.5 (33.5, 41.8)

314

37.6 (34.4, 41.0)

520

62.4 (59.0, 65.6)

 Female

779

39.9 (37.7, 42.1)

1174

60.1 (57.9, 62.3)

298

61.3 (56.9, 65.5)

188

38.7 (34.5, 43.1)

481

32.8 (30.4, 35.2)

986

67.2 (64.8, 69.6)

Race

 

**

       

**

  

 Malay

890

40.2 (38.2, 42.3)

1323

59.8 (57.7, 61.8)

405

595 (55.7, 63.1)

276

40.5 (36.9, 44.3)

485

31.7 (29.4, 34.0)

1047

68.3 (66.0, 70.60)

 Chinese

88

40.8 (34.5, 47.5)

129

59.2 (52.5, 65.5)

30

56.6 (43.1, 69.6)

23

43.4 (30.4, 56.9)

59

35.8 (28.8, 43.4)

106

64.2 (56.6, 71.2)

 Indian

181

53.4 (48.1, 58.6)

158

46.6 (41.4, 51.9)

72

72.7 (63.10, 80.6)

27

27.3 (19.4, 36.9)

109

45.4 (39.2, 51.8)

131

54.6 (48.2, 60.8)

 Bumiputera Sabah

175

48.7 (43.6, 53.9)

184

51.3 (46.1, 56.4)

80

64.5 (56.4, 73.2)

44

35.5 (26.8, 43.6)

95

40.4 (34.3, 46.8)

140

59.6 (53.2, 65.7)

 Bumiputera Sarawak

77

48.7 (41.0, 56.5)

81

51.3 (43.5, 59)

36

75 (60.9, 85.2)

12

25.0 (14.8, 39.1)

41

37.3 (28.8, 46.7)

69

62.7 (53.3, 71.2)

 Others

12

40.0 (24.3, 58.1)

18

60.0 (41.9, 75.7)

6

54.5 (26.8, 79.7)

5

45.5 (20.3,73.2)

6

31.6 (14.9, 54.9)

13

68.4 (45.1, 85.1)

Age groupa

2–6

214

66.3 (60.9, 71.2)

109

33.7 (28.8, 39.1)

        

7–12

257

70.2 (65.3, 74.7)

109

29.8 (25.3, 34.7)

        

13–17

158

48.3 (42.9, 53.7)

169

51.7 (46.3, 57.1)

        

18–30

341

35.6 (32.7, 38.7)

616

64.4 (61.3, 67.3)

        

31–40

193

33.2 (29.5, 37.2)

388

66.8 (62.8, 70.5)

        

41–50

148

33.4 (29.2, 37.9)

295

66.6 (62.1, 70.8)

        

51–60

113

35.3 (30.3, 40.7)

207

64.7 (59.3, 69.7)

        
  1. * Pearson’s Chi-Square test p-value <0.05
  2. ** Pearson’s Chi-Square test p-value <0.001
  3. a Extended Mantel-Haenszel chi square for linear trend= 178.1, p-value <0.001