1869. Strategies to Improve Influenza Vaccination Uptake Rates among Healthcare Workers in a Malaysian Tertiary Hospital
Session: Poster Abstract Session: Vaccines: Improving Immunization Uptake
Saturday, October 10, 2015
Room: Poster Hall
  • IDWeek Poster Flu Vac Study.pdf (1.3 MB)
  • Background: Annual influenza immunization rates of healthcare workers (HCWs) at our institution were in a decreasing trend (30-5%) over the years despite the provision of free vaccine. This study was conducted to identify strategies to improve influenza vaccine uptake rates among HCWs.

    Methods: An interventional study was conducted from January to April 2014 at an 880-bed tertiary teaching hospital. Six cohorts of 1850 HCWs were randomized based on respective departments, to 6 different interventions. Cohort 1 acted as control group of free vaccine with posters; Cohort 2-free vaccine plus educational lecture; Cohort 3-free vaccine plus educational lecture and on-site vaccine accessibility; Cohort 4-free vaccine plus educational lecture, on-site vaccine accessibility and declination statement; Cohort 5-free vaccine plus worksite vaccine delivery; Cohort 6-free vaccine plus worksite vaccine delivery and declination statement.

    Results: Influenza vaccination uptake rates increased significantly for the respective interventions (Figure 1). In logistic regression, the intervention of education, on-site or worksite vaccine accessibility and declination statement significantly increased the likelihood of the free influenza vaccine uptake compared with control group. Worksite free vaccine accessibility in cohort 5 accounted for 710 times likelihood of uptake (97.4% uptake rate) compared with control group (OR 710.7, 95% CI 281.1-1797.0, p<0.001), as we delivered the vaccine throughout the working hours from 8.00 am till 4.30 pm. In contrast, cohort 3 of educational lecture plus on-site free vaccine availability had an uptake rate of 75.7%, with increased likelihood of uptake by only 60 times (OR 60.1, 95% CI 31.5-114.6, p<0.001). The reason could be that the delivery of free vaccine on-site was within limited time of an hour post-lecture. Addition of declination statement improved the uptake rate in cohort 4 to 92.3% (OR 391.9, 95% CI 176.6-870.0, p<0.001), and in cohort 6 to 97.8% (OR 761.3, 95% CI 301.2-1924.0, p<0.001).

    Conclusion: Influenza vaccination rates among HCWs significantly improved with multiple interventions with the most successful intervention being worksite vaccine delivery of the free vaccine plus declination statement.

    Nordiah A. Jalil, MD, MSc, Noor Zetti Zainol Rashid, MBChB, MPath(Med Micro), Siti Rokiah Yusof, BNSc, Nor Rina Mahawar, BNSc, Razila Yacob, DipN, S. Norasmah S. Mustaffa, B. Pharm, Nurul Dayana Azmi, MD, Selvakumar Murthy, MD, Nik Nor Syahira Nik Mohd Rashid, MD and Li Fen Tan, MD, Hosp. Canselor Tuanku Muhriz, Universiti Kebangsaan Malaysia Med. Ctr., Kuala Lumpur, Malaysia


    N. A. Jalil, None

    N. Z. Zainol Rashid, None

    S. R. Yusof, None

    N. R. Mahawar, None

    R. Yacob, None

    S. N. S. Mustaffa, None

    N. D. Azmi, None

    S. Murthy, None

    N. N. S. Nik Mohd Rashid, None

    L. F. Tan, None

    Findings in the abstracts are embargoed until 12:01 a.m. PDT, Wednesday Oct. 7th with the exception of research findings presented at the IDWeek press conferences.