Frequency and Factors Associated with Adult Immunization in Patients Visiting Family Medicine Clinics at a Tertiary Care Hospital, Karachi

Objective The goal of this study was to determine the frequency and factors associated with adult immunization in patients visiting family medicine clinics at a tertiary care hospital in Karachi. Methods A cross-sectional study was conducted from March 2014 to March 2015 in a tertiary care hospital in Karachi, Pakistan. Participants more than 18 years were invited to participate in the study. A pretested questionnaire was used to collect information. Data were entered and analyzed using IBM SPSS Statistics for Windows, version 19.0 (Armonk, NY: IBM Corp). Results A total of 340 patients were surveyed. The majority of patients were female (69.5%) with a mean age of 35.47 years. The majority were married (61.1%), and 30% of the participants had completed graduation or postgraduate education (20%). Most of the patients believed that vaccines can be used in adults to prevent disease (62.2%). Patients believed that the hepatitis B vaccine, influenza vaccine, and hepatitis A vaccine can be administered to adults (58.1%, 29.9%, 33.8%, respectively). The major sources of their information regarding vaccination in adults were friends or relatives (25%) and media (23.2%). Regarding availability of vaccines, 71.3% thought a hepatitis B vaccine is available, 54.9% thought a tuberculosis vaccine is available, and 49.3% thought a tetanus toxoid vaccine is available. Only 36.4% respondents received any vaccine in adulthood. The majority of patients (62.2%) received the hepatitis B vaccine in adulthood. The major reason given for not receiving vaccines was lack of awareness (62.4%). Conclusion Low adult vaccination coverage rates and awareness, as highlighted by the results of this study, show the dire need to address this major preventive strategy. This information can be utilized to conduct larger community-based surveys, to conduct health awareness sessions in the community, and to educate our doctors regarding the availability and benefits of adult vaccines.