Table 2 Univariate analysis of syphilis seroprevalence among first-time blood donors according to their sociodemographic characteristics

Characteristics

% (n/N)

% (n/N)

OR (95% CI)

P-values

8.4 (912/10904)

2.4 (230/9747)

3.78 (3.26–4.38)

<0.001

 Female

6.3 (175/2773)

2.1 (46/2239)

3.21 (2.31–4.46)

<0.001

 Male

10.0 (737/8131)

2.5 (184/7508)

3.97 (3.37–4.68)

<0.001

 <18

4.7 (6/127)

0/15

NA

NA

 18–24

4.6 (143/3114)

1.0 (30/3042)

4.83 (3.25–7.19)

<0.001

 25–35

6.3 (282/4463)

1.7 (80/4713)

3.91 (3.02–5.02)

<0.001

 36–45

12.5 (301/2404)

5.0 (76/1525)

2.73 (2.10–3.54)

<0.001

 >45

22.6 (180/796)

9.7 (44/452)

2.71 (1.90–3.86)

<0.001

 VNRD

8.1 (347/4246)

2.0 (36/1822)

4.42 (3.12–6.25)

<0.001

 FRD

8.5 (565/6658)

2.5 (194/7925)

3.70 (3.13–4.36)

<0.001

 Healthcare workers

5.2 (3/58)

3.4 (3/89)

1.56 (0.31–8.03)

0.63

 Students

5.4 (16/298)

1.2 (31/2545)

4.60 (2.48–8.52)

<0.001

 Teachers/researchers

9.2 (9/98)

7.3 (15/206)

1.29 (0.54–3.06)

0.73

 Police and armed forces

9.1 (168/1846)

1.6 (19/1196)

6.20 (3.84–10.03)

<0.001

 Drivers

4.9 (8/162)

3.6 (22/613)

1.40 (0.61–3.20)

0.57

 Government employees

3.0 (7/234)

2.3 (10/437)

1.32 (0.50–3.51)

0.77

 Tailors and hairdressers

0/84

3.6 (10/282)

NA

NA

 Hotel and restaurant workers

0 (0/12)

9.3 (5/54)

NA

NA

 Merchants

8.3 (2/24)

3.1 (3/98)

2.88 (0.45–18.28)

0.25

 Others

8.6 (699/8088)

2.7 (112/4227)

3.48 (2.84–4.26)

<0.001