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Table 2 Risk factors for current and exposure to HBV infection among health care workers [4, 15, 16]

From: Seroepidemiology of HBV infection among health-care workers in South Sulawesi, Indonesia

Variable

Overall

Current HBV infection

Exposure to HBV infection

 

(N = 467)

HBsAg+ (%)a

OR (IC 95)

p-valueb

Anti-HBc + (%)a

OR (IC 95)

p-valueb

Gender

 Male

89

7.9

1.38 (0.57–3.34)

0.412

28.1

1.92 (1.12–3.27)

0.016

 Female (Ref)

378

5.8

1

 

16.9

1

 

Age group (Years)

       

  < 20–29 (Ref)

300

7.3

1

 

15.7

1

 

 30–39

127

1.6d

0.20 (0.47–0.87)

0.018

19.7e

1.32 (0.77–2.26)

0.311

  ≥ 40

40

12.5d

1.81 (0.64–5.07)

0.344c

42.5e

3.98 (1. 98–8.01)

< 0.001

Marital status

 Married/Separated

277

6.9

1.31 (0.60–2.89)

0.500

21.7

1.52 (0.93–2.47)

0.093

 Single (Ref)

188

5.3

1

 

21.54

1

 

Type of Work

 Administration (Ref)

89

7.9

1

 

13.5

1

 

 Non-intervention

297

4.7

0.58 (0.23–1.48)

0.250

16.5f

1.27 (0.64–2.51)

0.494

 Intervention

81

9.9

1.28 (0.44–3.71)

0.644

34.6f

3.39 (1.58–7.26)

< 0.001

Length of service (years)

  < 5 (Ref)

271

16.6

1

 

16.6

1

 

 5–9

155

5.2

0.76 (0.33–1.80)

0.539

18.7g

1.16 (0.69–1.93)

0.581

  ≥ 10

41

7.3

1.11 (0.31–3.95)

0.872

36.6g

2.90 (1.42–5.90)

0.002

Needlestick injury

 Yes

160

4.4

0.53 (0.22–1.27)

0.149

24.4

1.71 (1.05–2.77)

0.029

 No (Ref)

277

7.9

1

 

15.9

1

 

Other work-related injuries

 Yes

41

0.0

0.00 (−)

0.580c

26.8

1.55 (0.73–3.28)

0.252

 No (Ref)

282

29.2

1

 

19.1

1

 

Hepatitis B vaccination history

 Unvaccinated/unknown

322

7.5

1.12 (0.33–3.91)

0.850

18.9

1.87 (0.71–4.94)

0.200

 Vaccinated (Ref)

45

6.7

1

 

11.1

1

 

Blood recipient

       

 Yes

11

0.0

0.00 (−)

1.000c

27.3

1.59 (0.42–6.11)

0.498c

 No (Ref)

445

6.5

1

 

19.1

1

 

History of jaundice

 Yes

21

9.5

1.59 (0.35–7.17)

0.636

28.8

1.69 (0.64–4.49)

0.286

 No (Ref)

434

6.2

1

 

19.1

1

 

Family history of liver disease

 Yes

30

6.7

1.06 (0.24–4.67)

1.000c

30.0

1.91 (0.84–4.35)

0.115

 No (Ref)

410

6.3

1

 

18.3

1

 
  1. OR odds ratio, CI confidence interval
  2. aThe percentage of samples in each variable
  3. bChi square test, except
  4. cby Fisher exact test; significant p values (< 0.05) are in bold
  5. dRisk of current HBV infection for age group ≥40 y.o. vs 30–39 y.o: OR 8.93 (95% CI, 1.66–48.01; p = 0.0093)
  6. eRisk of exposure to HBV infection for age group ≥40 y.o. vs 30–39 y.o: OR 3.02 (95% CI: 1.40–6.48; p = 0.004)
  7. fRisk of exposure to HBV infection for type of work Intervention vs non-intervention: OR 2.67 (95% CI: 1.54–4.64; p < 0.001)
  8. gRisk of exposure to HBV infection for length of service ≥10 years vs 5–9 years: OR = 2.51 (95% CI: 1.18–5.32; p = 0.015)
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BMC Infectious Diseases

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