title: A cross-sectional serosurvey on hepatitis B vaccination uptake among adult patients from GP practices in a region of South-West Poland.
abstract: BACKGROUND
  Hepatitis B is a significant health burden in Poland with nosocomial transmission being the main source of infection. Therefore, HBV vaccination is widely recommended for those not covered by the national immunisation program.
  
  
  OBJECTIVE
  To assess the coverage and influencing determinants of HBV vaccination among adult patients attending GP clinics as well as to establish serological status in terms of HBV infection.
  
  
  METHODS
  Patients who were seen consecutively in March 2013 at four randomly selected GP practices located in Zgorzelec county, in south-western part of Poland, were invited to participate and complete questionnaires on socio-demographic data and other factors related to vaccination. A pilot study was done in one urban GP practice in the city of Gryfino (Gryfino county), the results have been included in the study. Patients' immunisation status was assessed basing on vaccination cards and anti-HBs titer with the use of third-generation testing methods. In addition, serum samples were assayed for anti-HBc total.
  
  
  RESULTS
  Response rate: 99.3 %. Of 410 participants (66.1 % females, median age 56 years), 55.4 % (95%CI:50.5-60.1 %) were previously vaccinated; in those 11.5 % took 2 doses, 66.1 % - 3 doses,18.1 % - 4 doses. Elective surgery was the main reason (57.7 %) for HBV immunization, 4.8 % - were vaccinated due to recommendations by GPs. The multivariable logistic regression model revealed that living in a city (OR 2.11), and having a surgery in the past (OR 2.73) were each associated with greater odds of being vaccinated. Anti-HBc total prevalence among those unvaccinated was 13.6 % (95%CI:9.3 %-19,5 %), and 7.2 % (95%CI:4.4-11.8 %) among those vaccinated.
  
  
  CONCLUSIONS
  Low HBV immunization coverage among adult patients from GP clinics and the presence of serological markers of HBV infection among both - those unvaccinated and vaccinated call for comprehensive preventative measures against infection, including greater involvement of family doctors. Although interventions should cover the whole population, inhabitants living in the rural areas should be a group of special interest. Preoperative immunization for HBV seems to be an efficient public health tool to increase the vaccination uptake.
authors.affiliation: Department of Public Health, Pomeranian Medical University, Zolnierska 48, 71-210, Szczecin, Poland. mganczak@pum.edu.pl.
authors.forename: Maria
authors.initials: M
authors.lastname: Ganczak
authors.affiliation: Vaccination Unit, Primary Care Clinic WS SPZOZ, Warszawska 30, Zgorzelec, Poland. gabi.dd@wp.pl.
authors.forename: Gabriela
authors.initials: G
authors.lastname: Dmytrzyk-Daniłów
authors.affiliation: Faculty of Computer Science and Information Technology, West Pomeranian University of Technology, Zolnierska 49, 71-210, Szczecin, Poland. mkorzen@wi.zut.edu.pl.
authors.forename: Marcin
authors.initials: M
authors.lastname: Korzeń
authors.affiliation: Department of Computer Science and Education Quality Research, Pomeranian Medical University, Zolnierska 53, 71-210, Szczecin, Poland. szych@pum.edu.pl.
authors.forename: Zbigniew
authors.initials: Z
authors.lastname: Szych
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003428:Cross Infection / Q000097:blood / Q000453:epidemiology / Q000517:prevention & control* / Q000821:virology; D003430:Cross-Sectional Studies; D017558:Elective Surgical Procedures; D005260:Female; D058006:General Practice; D006509:Hepatitis B / Q000097:blood / Q000276:immunology / Q000517:prevention & control* / Q000821:virology; D006510:Hepatitis B Antibodies / Q000097:blood; D006514:Hepatitis B Surface Antigens / Q000097:blood; D017325:Hepatitis B Vaccines; D006515:Hepatitis B virus / Q000276:immunology; D006801:Humans; D017589:Immunization Programs; D008297:Male; D008875:Middle Aged; D010342:Patient Acceptance of Health Care; D010865:Pilot Projects; D011044:Poland / Q000453:epidemiology; D015995:Prevalence; D012698:Serologic Tests; D014611:Vaccination / Q000706:statistics & numerical data*
chemical_list: D006510:Hepatitis B Antibodies; D006514:Hepatitis B Surface Antigens; D017325:Hepatitis B Vaccines