Table 4 Socio–demographic characteristics of blood donors by HCV and Treponema pallidum seropositivity

 Male

235 (0.19, 0.17–0.21)

1.00

N/A

569 (0.46, 0.42–0.5)

1.00

N/A

 Female

179 (0.20, 0.17–0.23)

1.06 (0.87–1.28)

0.583

629 (0.71, 0.65–0.77)

1.54 (1.37–1.72)

0.000

 18–25

132 (0.23, 0.19–0.27)

1.27 (0.93–1.72)

0.128

132 (0.23, 0.19–0.27)

0.33 (0.27–0.41)

0.000

 26–35

96 (0.18, 0.14–0.22)

0.97 (0.70–1.33)

0.831

338 (0.63, 0.56–0.7)

0.89 (0.75–1.05)

0.175

 36–45

126 (0.18, 0.15–0.21)

0.99 (0.73–1.34)

0.928

499 (0.72, 0.66–0.78)

1.02 (0.88–1.20)

0.775

 >45

60 (0.18, 0.13–0.23)

1.00

N/A

229 (0.71, 0.62–0.8)

1.00

N/A

 Worker

46 (0.12, 0.09–0.15)

1.00

N/A

228 (0.59, 0.51–0.67)

1.00

N/A

 Student

66 (0.29, 0.22–0.36)

2.43 (1.67–3.54)

0.000

32 (0.14, 0.09–0.19)

0.24 (0.16–0.34)

0.000

 Farmer

59 (0.31, 0.23–0.39)

2.59 (1.76–3.82)

0.000

191 (1.00, 0.86–1.14)

1.70 (1.40–2.06)

0.000

 Merchant

38 (0.20, 0.14–0.26)

1.70 (1.11–2.62)

0.014

136 (0.73, 0.61–0.85)

1.23 (0.99–1.52)

0.056

 Office staff

18 (0.12, 0.06–0.18)

1.04 (0.60–1.79)

0.888

79 (0.55, 0.43–0.67)

0.92 (0.71–1.19)

0.526

 Doctor

18 (0.14, 0.08–0.2)

1.14 (0.66–1.96)

0.640

20 (0.15, 0.08–0.22)

0.25 (0.16–0.40)

0.000

 Govt. employee

20 (0.17, 0.1–0.24)

1.39 (0.82–2.35)

0.218

47 (0.39, 0.28–0.5)

0.66 (0.48–0.90)

0.008

 Teacher

13 (0.16, 0.07–0.25)

1.32 (0.71–2.45)

0.374

25 (0.30, 0.18–0.42)

0.51 (0.34–0.77)

0.001

 Soldier

1 (0.06, −0.06–0.18)

0.53 (0.07–3.84)

0.792

3 (0.19, −0.03–0.41)

0.32 (0.10–1.0)

0.039

 Others

135 (0.21, 0.17–0.25)

1.78 (1.27–2.48)

0.001

437 (0.69, 0.63–0.75)

1.16 (0.99–1.36)

0.071