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Table 3 Demographic characteristics associated with Hepatitis B virus infection among HCWs at KCMC Moshi, Tanzania 2016/17

From: Seroprevalence of hepatitis B virus infection and associated factors among healthcare workers in northern Tanzania

Variable Total Serology n (%) χ2* p-value
Negative Positive   
Age (years)     0.278 0.93**
20–29 88 84 (95.4) 4 (4.6)   
30–39 164 154 (93.9) 10 (6.1)   
40+ 187 176 (94.1) 11 (5.9)   
Sex     0.432 0.51
Male 166 155 (93.4) 11 (6.6)   
Female 273 259 (94.9) 14 (5.1)   
Education level     1.835 0.30**
Primary 26 24 (92.3) 2 (7.7)   
Secondary 67 61 (91.0) 6 (9.0)   
Tertiary 342 325 (95.0) 17 (5.0)   
Marital status     4.212 0.14**
Single 140 128 (91.4) 12 (8.6)   
Married/Cohabiting 272 259 (95.2) 13 (4.8)   
Widow/Divorced 27 27 (100) 0 (0)   
Religion     3.992 0.05
Christian 375 357 (95.2) 18 (4.8)   
Muslim 63 56 (88.9) 7 (11.1)   
Area of residence     1.001 0.32
Rural 186 173 (93.0) 13 (7.0)   
Urban 253 241 (95.3) 12 (4.7)   
Department     2.653 0.47**
Surgical 193 183 (94.8) 10 (5.2)   
Non-surgical 129 122 (96.1) 5 (3.9)   
Outpatient/Emergency 21 19 (90.5) 2 (9.5)   
Administrative/Supportive 42 39 (92.9) 3 (7.1)   
Laboratory/Pathology 56 51 (91.1) 5 (8.9)   
Specialty     3.076 0.48**
Doctor 130 123 (94.6) 7 (5.4)   
Nurse 135 130 (96.3) 5 (3.7)   
Laboratory 37 33 (89.2) 4 (10.8)   
Other health professions 56 52 (92.9) 5 (7.1)   
Administrative/ Supportive staff 81 76 (93.8) 5 (6.2)   
Work in clinical area     1.229 0.32**
Yes 348 326 (93.7) 22 (6.3)   
No 91 88 (96.7) 3 (3.3)   
Years of practice     2.756 0.13**
< 5 91 89 (97.8) 2 (2.2)   
≥5 339 316 (93.2) 23 (6.8)   
  1. *Chi-square; **p-value by Fisher’s exact estimation