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Table 3 Prevalence of four hepatitis B virus infection status by socio-demographic characteristics of the study participants

From: Prevalence and associated knowledge of hepatitis B infection among healthcare workers in Freetown, Sierra Leone

Characteristic Tested no. (%) Susceptible no. (%) P value Current infection no. (%) P value Past infection no. (%) P value Immune due to vaccination no. (%) P value
Age (y)    0.337   0.018*   0.506   0.506
  ≥ 39y 112 (53.1) 94 (83.9)   6 (5.4)   6 (5.4)   6 (5.4)  
  < 39y 99 (46.9) 78 (78.8) 15 (15.2) 3 (3.0) 3 (3.0)
Gender    0.989   0.730   0.744   0.499
 Male 108 (51.2) 88 (81.5)   10 (9.3)   4 (3.7)   6 (5.6)  
 Female 103 (48.8) 84 (81.6) 11 (10.7) 5 (4.9) 3 (2.9)
Working experience    0.452   0.419   0.509   0.736
  ≥ 9y 113 (53.6) 90 (79.6)   13 (11.5)   6 (5.3)   4 (3.5)  
  < 9y 98 (46.4) 82 (83.7) 8 (8.2) 3 (3.1) 5 (5.1)
Education level    0.933   0.365   0.716   0.716
 High school 39 (18.5) 31 (79.5)   6 (15.4)   1 (2.6)   1 (2.6)  
 Diploma certificate 166 (78.7) 136 (81.9) 14 (8.4) 8 (4.8) 8 (4.8)
 Bachelor’s degree or higher 6 (2.8) 5 (83.3) 1 (16.7) 0 (0.0) 0 (0.0)
Occupation    0.736   0.894   0.311   0.780
 Medical doctor 7 (3.3) 6 (85.7)   1 (14.3)   0 (0.0)   0 (0.0)  
 Nurse 169 (80.1) 136 (80.5)   17 (10.1)   9 (5.3)   7 (4.1)  
 Other staff 35 (16.6) 30 (85.7) 3 (8.6) 0 (0.0) 2 (5.7)
Department    0.000*   0.560   0.738   0.007*
 Internal medicine 21 (10.0) 18 (85.7)   1 (4.8)   1 (4.8)   1 (4.8)  
 Surgical Department 47 (22.3) 36 (76.6) 8 (17.0) 3 (6.4) 0 (0.0)
 Emergency Department 16 (7.6) 14 (87.5) 1 (6.3) 0 (0.0) 1 (6.3)
 Pediatric 19 (9.0) 15 (78.9) 2 (10.5) 2 (10.5) 0 (0.0)
 Obstetrics and Gynecology 9 (4.3) 0 (0.0) 0 (0.0) 0 (0.0) 0 (0.0)
 Under Fives Clinic 6 (2.8) 5 (83.3) 0 (0.0) 0 (0.0) 1 (16.7)
 Laboratory 16 (7.6) 16 (100.0) 0 (0.0) 0 (0.0) 0 (0.0)
 OP Theatre 22 (10.4) 19 (40.9) 2 (9.0) 0 (0.0) 1 (4.5)
 Pharmacy 5 (2.4) 2 (40.0) 1 (20.0) 0 (0.0) 2 (40.0)
 Others 50 (23.7) 38 (76.0) 6 (12.0) 3 (6.0) 3 (6.0)
Hepatitis history    0.355   0.854   0.110   0.393
 YES 14 (6.6) 10 (71.4)   2 (14.3)   2 (14.3)   0 (0.0)  
 NO 176 (83.4) 143 (81.3) 17 (9.7) 7 (4.0) 9 (5.1)
 Unknown 21 (10.0) 19 (90.5) 2 (9.5) 0 (0.0) 0 (0.0)
HBV vaccination    0.588   0.135   1.000   0.001*
 YES 37 (17.5) 29 (78.4)   1 (2.7)   1 (2.7)   6 (16.2)  
 NO 174 (82.5) 143 (82.2) 20 (11.5) 8 (4.6) 3 (1.7)
Sharps injury    0.025*   0.351   0.670   0.063
 Never 110 (52.1) 82 (74.5)   14 (12.7)   6 (5.5)   8 (7.3)  
 Once 36 (17.1) 32 (88.9) 2 (5.6) 1 (2.8) 1 (2.8)
 More than once 65 (30.8) 58 (89.2) 5 (7.7) 2 (3.1) 0 (0.0)
Total 211 (100) 172 (81.5)   21 (10.0)   9 (4.3)   9 (4.3)  
  1. *Statistically significant at P < 0.05