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Table 2 Univariable and multivariable analysis of S. stercoralis infection on simple logistic regression and GEE

From: Current high prevalences of Strongyloides stercoralis and Opisthorchis viverrini infections in rural communities in northeast Thailand and associated risk factors

Characteristics

SR (n = 273)a

BN (n = 253)a

Total (n = 526)

Crude OR

(95%CI)

Adjusted OR

(95%CI)

Total No.

Positive No. (%)

Total No.

Positive No. (%)

Total No.

Positive No. (%)

Gender (N)

273

61 (22.3)

253

60 (23.7)

526

121 (23.0)

  

 Female

144

20 (7.3)

128

13 (5.1)

272

33 (6.3)

1

1

 Male

129

41 (15.0)

125

47 (18.6)

254

88 (16.7)

3.8 (2.45 to 5.99)#

4.0 (2.52 to 6.24)#

Age (N)

273

61 (22.3)

253

60 (23.7)

526

121 (23.0)

  

  < 30

18

0 (0)

10

1 (0.4)

28

1 (0.2)

1

1

 30–39

17

1 (0.4)

12

1 (0.4)

29

2 (0.4)

2.0 (0.17 to 23.38)

1.9 (0.16 to 22.64)

 30–49

45

12 (4.4)

51

8 (3.2)

96

20 (3.8)

7.1 (0.91 to 55.51)

7.7 (0.97 to 61.43)

 50–59

68

20 (7.3)

59

14 (5.5)

127

34 (6.5)

9.9 (1.29 to 75.47) +

10.8 (1.38 to 84.11) +

  ≥ 60

125

28 (10.3)

121

36 (14.2)

246

64 (12.2)

9.5 (1.26 to 71.29) +

10.0 (1.31 to 76.43) +

Education level (N)

273

61 (22.3)

253

60 (23.7)

526

121 (23.0)

  

 Diploma, bachelor degree or higher

17

0 (0)

12

2 (0.8)

29

2 (0.4)

1

 

 Grade 7–12

57

11 (4.0)

59

13 (5.1)

116

24 (4.6)

3.5 (0.78 to 15.86)

 

 Primary school or no formal education

199

50 (18.3)

182

45 (17.8)

381

95 (18.0)

4.5 (1.04 to 19.21)+

 

Occupation (N)

273

61 (22.3)

253

60 (23.7)

526

121 (23.0)

  

 Low risk of contact with S. stercolaris

24

2 (0.7)

8

0 (0)

32

2 (0.4)

1

 

 Moderate risk of contact with S. stercolaris

93

21 (7.7)

33

3 (1.2)

126

24 (4.6)

3.5 (0.78 to 15.79)

 

 Higher risk of contact with S. stercolaris

156

38 (13.9)

212

57 (22.5)

368

95 (18.0)

5.2 (1.22 to 22.25) +

 

BMI (N)

259

56 (21.6)

245

59 (24.1)

504

115 (22.8)

  

  < 18.5

22

5 (1.9)

9

3 (1.2)

31

8 (1.6)

1

 

 18.5 to 25.99

140

34 (13.1)

136

46 (18.8)

276

73 (14.5)

1.0 (0.44 to 2.41)

 

 26 to 29.99

78

13 (5.0)

79

5 (2.0)

157

25 (5.0)

0.5 (0.21 to 1.35)

 

  ≥ 30

19

4 (1.5)

21

5 (2.0)

40

9 (1.8)

0.8 (0.27 to 2.49)

 

Income per month (N) $

273

61 (22.3)

253

60 (23.7)

526

121 (23.0)

  

  ≥ 250 $

81

17 (6.2)

48

7 (2.8)

129

24 (4.6)

1

 

  < 250 $

192

44 (16.1)

205

53 (20.9)

397

97 (18.4)

1.4 (0.85 to 2.33)

 
  1. Remark: Those with a low risk of contact with S. stercoralis included students and government and private officers. Those with moderate risk of contact with S. stercoralis were employee/merchants and housewife. Those with a higher risk of contact with S. stercoralis were agriculturists. GEE: generalized estimating equation, SR: Samran sub-district; BN: Bueng Niam sub-district. Gender, age, education level, and occupation were multivariable analysis to adjust for confounder
  2. #Statistically significant difference P-value < 0.001, +Statistically significant difference P-value < 0.05
  3. aThe difference of S. stercoralis infection between SR and BN was not statistically significant
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