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Table 3 Proportion positive with SARS-CoV-2 IgG

From: SARS-CoV-2 antibody seroprevalence in Lebanon: findings from the first nationwide serosurvey

Characteristics

N

N

Positive

Crude

p-value

Weighted*

Adjusted for test

performance

p-value

Overall

2058

329

16.0(14.4;17.6)

 

15.9(14.4;17.4)

18.5(16.8;20.2)

 

Sex

   

0.29

  

0.60

 Male

1207

188

15.6(13.6;17.6)

 

15.6(13.6;17.5)

18.0(15.8;20.2)

 

 Female

851

141

16.6(14.1;19.1)

16.4(14.0;18.7)

19.2(16.6;21.8)

 

Age groups (years)

   

0.08

  

0.08

 ≤ 19

293

45

15.4(11.3;19.5)

 

15.0(11.2;18.8)

17.8(13.2;22.2)

 

 20–29

403

47

11.7(8.6;14.8)

12.2(9.2;15.2)

13.5(10.2;16.8)

 

 30–39

366

63

17.2(13.3;21.1)

17.1(13.5;20.7)

19.9(15.8;24.0)

 

 40–49

360

69

19.2(15.1;23.3)

19.0(15.2;22.8)

22.2(17.9;26.5)

 

 50–59

320

52

16.3(12.3;20.3)

15.7(11.9;19.5)

18.8(14.5;23.1)

 

 ≥ 60

200

37

18.5(13.1;23.9)

18.6(13.5;23.7)

21.4(15.7;27.1)

 

Governorates

   

 < 0.0001

  

 < 0.0001

 Baalbek El-Hermel

112

33

29.5(21.1;37.9)

 

29.8(21.0;38.6)

34.1(25.3;42.9)

 

 North Lebanon

163

30

18.4(12.5;24.3)

18.2(12.2;24.2)

21.3(15.0;27.6)

 

 Bekaa

143

26

18.2(11.9;24.5)

18.0(11.5;24.5)

21.0(14.3;27.7)

 

 Mount Lebanon

925

167

18.1(15.6;20.6)

18.1(15.8;20.4)

20.9(18.3;23.5)

 

 South Lebanon

269

34

12.6(8.6;16.6)

12.6(9.5;15.7)

14.6(10.4;18.8)

 

 Akkar

119

13

10.9(5.3;16.5)

11.2(5.2;17.2)

12.6(6.6;18.6)

 

 Beirut

162

16

9.9(5.3;14.5)

10.1(5.3;14.9)

11.4(6.5;16.3)

 

 Nabatieh

165

10

6.1(2.4;9.8)

6.1(2.2;10.0)

7.0(3.1;10.9)

 

Comorbidities

   

0.25

  

0.39

 Yes

270

39

14.4(10.2;18.6)

 

16.2(12.1;20.3)

16.6(12.2;21.0)

 

 No

1432

233

16.3(14.4;18.2)

14.1(12.4;15.8)

18.8(16.8;20.8)

 

History of positive PCR testing for SARS-CoV-2

   

 < 0.0001

  

 < 0.0001

 Yes

60

38

63.3(51.1;75.5)

 

63.2(51.7;74.7)

73.3(62.1;84.5)

 

 No

1642

234

14.3(12.6;16.0)

14.1(12.5;15.7)

16.5(14.7;18.3)

 
  1. N number; %: percentage; IgG immunoglobulin G; CI confidence interval
  2. *Weighted by age group, sex, and governorates