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Table 1 Prevalence of five hepatitis B virus serological markers 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. (%) HBsAg (+) no. (%) P value HBsAb (+) no. (%) P value HBeAg (+) no. (%) P value HBeAb (+) no. (%) P value HBcAb (+) no. (%) P value
Age (y)
  ≥ 39y 112 (53.1) 6 (5.4) 0.021* 7 (6.3) 0.342 0 (0.0) 0.469 7 (6.3) 0.027* 10 (8.9) 0.066
  < 39y 99 (46.9) 15 (15.2) 3 (3.0) 1 (1.0) 16 (16.2) 18 (18.2)
Gender
 Male 108 (51.2) 10 (9.3) 0.820 7 (6.5) 0.333 0 (0.0) 0.488 11 (10.2) 0.826 13 (12.0) 0.686
 Female 103 (48.8) 11 (10.7) 3 (2.9) 1 (1.0) 12 (11.7) 15 (14.6)
Working experience
  ≥ 9y 113 (53.6) 8 (7.1) 0.168 7 (6.2) 0.345 0 (0.0) 0.464 8 (7.1) 0.076 10 (8.8) 0.066
  < 9y 98 (46.4) 13 (13.3) 3 (3.1) 1 (1.0) 15 (15.3) 18 (18.4)
Education level
 High school 39 (18.5) 6 (15.4) 0.365 1 (2.6) 0.645 0 (0.0) 0.873 5 (12.8) 0.807 7 (17.9) 0.601
 Diploma certificate 166 (78.7) 14 (8.4) 9 (5.4) 1 (0.6) 17 (10.2) 20 (12.0)
 Bachelor’s degree or higher 6 (2.8) 1 (16.7) 0 (0.0) 0 (0.0) 1 (16.7) 1 (16.7)
Occupation
 Medical doctor 7 (3.3) 2 (28.5)   0 (0.0)   0 (0.0)   3 (42.9)   3 (42.9)  
 Nurse 169 (80.1) 17 (10.1) 0.182 9 (5.3) 0.687 1 (0.6) 0.883 18 (10.7) 0.015* 23 (13.6) 0.029*
 Others staff 35 (16.6) 2 (5.7) 1 (2.9) 0 (0.0) 2 (5.7) 2 (5.7)
Department
 Internal Medicine 21 (10.0) 1 (4.8) 0.560 1 (4.8) 0.071 0 (0.0) 0.338 2 (9.5) 0.637 2 (9.5) 0.384
 Surgical Department 47 (22.3) 8 (17.0) 1 (2.1) 0 (0.0) 8 (17.0) 9 (19.1)
 Emergency Department 16 (7.6) 1 (6.3) 1 (6.3) 0 (0.0) 1 (6.3) 1 (6.3)
 Paediatric 19 (9.0) 2 (10.5) 0 (0.0) 1 (5.3) 2 (10.5) 4 (21.1)
 Obstetrics and Gynecology 9 (4.3) 0 (0.0) 0 (0.0) 0 (0.0) 0 (0.0) 0 (0.0)
 Under Fives Clinic 6 (2.8) 0 (0.0) 1 (16.7) 0 (0.0) 0 (0.0) 0 (0.0)
 Laboratory 16 (7.6) 0 (0.0) 0 (0.0) 0 (0.0) 0 (0.0) 0 (0.0)
 OP Theatre 22 (10.4) 2 (9.0) 1 (4.5) 0 (0.0) 2 (9.0) 2 (9.0)
 Pharmacy 5 (2.4) 1 (20.0) 2 (40.0) 0 (0.0) 1 (20.0) 1 (20.0)
 Others 50 (23.7) 6 (12.0) 3 (6.0) 0 (0.0) 7 (14.0) 9 (18.0)
Hepatitis history
 YES 14 (6.6) 2 (14.3) 0.268 1 (7.1) 0.908 0 (0.0) 0.905 2 (14.3) 0.391 3 (21.4) 0.429
 NO 176 (83.4) 15 (8.5) 8 (4.5) 1 (0.6) 17 (9.7) 21 (11.9)
 Unknown 21 (10.0) 4 (19.0) 1 (4.8) 0 (0.0) 4 (19.0) 4 (19.0)
HBV vaccination
 YES 37 (17.5) 1 (2.7) 0.135 6 (16.2) 0.002* 0 (0.0) 1.000 1 (2.7) 0.087 1 (2.7) 0.034*
 NO 174 (82.5) 20 (11.5) 4 (2.3) 1 (0.6) 22 (12.6) 27 (15.5)
Sharps injury
 Never 110 (52.1) 11 (10.0) 0.955 5 (4.5) 0.739 1 (1.0) 0.630 14 (12.7) 0.586 15 (13.6) 0.962
 Once 36 (17.1) 4 (11.1) 1 (2.8) 0 (0.0) 4 (11.1) 5 (13.9)
 More than once 65 (30.8) 6 (9.2) 4 (6.2) 0 (0.0) 5 (7.7) 8 (12.3)
Total 211 (100) 21 (10.0)   10 (4.7)   1 (0.5)   23 (10.9)   28 (13.3)  
  1. *Statistically significant at P < 0.05