Research Article Modeling the Factors Associated with Incomplete Immunization among Children Shahla Faisal , 1,2 Faisal Maqbool Zahid , 1,2 Shahid Kamal, 3 Khawar Shahzad , 4 Abdul-Aziz Seidu, 5 and Bright Opoku Ahinkorah 6 1 Department of Statistics, Government College University, Faisalabad, Pakistan 2 Center of Data Science, Government College University, Faisalabad, Pakistan 3 College of Statistical and Actuarial Sciences, University of the Punjab, Lahore, Pakistan 4 District Headquarters (DHQ) Hospital, Faisalabad, Pakistan 5 Centre for Gender and Advocacy, Takoradi Technical University, Takoradi, Ghana 6 School of Public Health, University of Technology Sydney, Sydney, NSW 2007, Australia Correspondence should be addressed to Shahla Faisal; drshahlafaisal@gcuf.edu.pk Received 26 July 2022; Revised 13 September 2022; Accepted 27 September 2022; Published 14 October 2022 Academic Editor: Tahir Mehmood Copyright © 2022 Shahla Faisal et al. is is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Immunization is a precautionary measure that helps to stop diseases before their occurrence. Vaccine-preventable diseases are a primary cause of death among children under the age of five in many developing nations. e purpose of this study is to investigate the immunization status and associated demographic characteristics among children aged 12–23 months in Punjab, Pakistan. e study used the data from the Multiple Indicator Cluster Survey (MICS) for Punjab, Pakistan. Data were collected from caregivers using interviewer-administered questionnaires. To summarize the data, descriptive statistics are computed, and logistic regression is used to identify the significant factors that are responsible for complete immunization among the children in Punjab. Odds ratios, 95% CI, and Chi-square statistics were computed to identify the factors associated with no or partial immunization. e prevalence of complete immunization coverage was 89.1%. Women in the rich wealth quantile had the highest odds of completing the immunization for their children (AOR  2.314; 95% CI: 1.642–3.261) compared to those who are poor. ose in rural areas were more likely to fully vaccinate their children (AOR  1.54; 95% CI: 1.232–1.925) compared to those in urban areas. ose in the highest level of the educational group (AOR  2.639; 95% CI: 1.800–3.87) are more likely to complete vaccination for their children compared to those with no formal education. However, female children are less likely to complete immunization compared to male children (AOR  0.813; 95% CI: 0.687–0.963). e immunization status of children shows a significant as- sociation with maternal education, wealth status, and area of residence. 1. Introduction Vaccination is one of the simplest and most cost-effective ways available to public to improve health [1], averting at least 37 million deaths between 2000 and 2019. It is the process in which a child is vaccinated against particular diseases such as polio, tuberculosis, hepatitis B, diphtheria, tetanus, and measles. It prevents 2 to 3 million deaths of children every year all over the world. Since the expanded program on immunization began in 1974, there has been an enormous increase in immunization rates worldwide, and the gap between rich and poor countries is getting smaller [2]. A global effort to immunize children with (at the time) six-core vaccinations was initiated by WHO in May 1974 [3]. Policymakers can use return on investment analysis to improve and expand immunization programs in the world’s poorest countries [4]. To maximize the advantages of im- munization programs, decision-makers must estimate the value of the worldwide investment in immunization pro- grams [5]. e pandemic COVID-19 shows how important vaccines are in preventing disease, saving lives, and creating a wealthier future. Strong immunization systems will be Hindawi Mathematical Problems in Engineering Volume 2022, Article ID 8460837, 7 pages https://doi.org/10.1155/2022/8460837