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Table 2 Protective antibody status in relation to exposure route through natural infection versus vaccination by hospital department of employment and profession

From: Health care workers in Pearl River Delta Area of China are not vaccinated adequately against hepatitis B: a retrospective cohort study

Factor Number Portion of group with detectable protective antibodies, ratio (%) χ 2 P
Vaccinated Infected naturally
N = 601 N = 107
Department Infectious diseases 106 42/61 (68.8 %) 15/17 (88.2 %) 1.743656 .0406
General medicine 367 80/145 (55.2 %) 44/71 (62.0 %) 0.927921 .1767
Surgery 305 104/186 (55.9 %) 25/40 (62.5 %) 0.695803 .2433
Ob/gyn 88 34/56 (60.7 %) 5/20 (25.0 %) −2.74299 .0030
Pediatrics 56 24/33 (72.7 %) 3/8 (37.5 %) −1.82574 .0339
Dentistry 44 12/22 (54.5 %) 5/9 (55.6 %) 0.051297 .4795
Emergency 88 23/37 (62.2 %) 3/6 (50.0 %) −0.56521 .2860
Nephrology 23 4/13 (30.8 %) 0/2 (0.0 %) −1.09545 .1367
Other 343 33/48 (68.8 %) 7/9 (77.7 %) 0.322184 .3737
Profession Doctor 405 151 (77.8 %) 27 (46.6 %) −4.68522 2E-6
Dentist 18 8 (57.1 %) 1 (25.0 %) −1.13389 .1284
Nurse 542 192 (61.7 %) 60 (61.2 %) −0.09085 .4638
Technician 123 17 (40.5 %) 12 (70.6 %) 2.095346 .0181
Other 332 31 (60.8 %) 7 (77.78 %) 0.334633 .3690
  vaccination coverage/Infected naturally rates 1420 42.32 % 7.53 % −6.35622 2E-7