BackgroundIn Pakistan, health system is facing unprecedented challenges to deal with the healthcare demand of the growing ageing population. Using conceptual framework, this study analyzes the factors associated with outpatient services utilization by the elderly population Methods This study used a sample of 5,319 individuals aged 60 and above extracted from the Pakistan Social and Living Standards Measurement Survey 2014-15. We modified the Anderson’s Behavioral model to accommodate available information on the elderly healthcare utilization. The behavioral factors, including predisposing, enabling and need factors, associated with the use of outpatient service were analyzed using exploratory data analysis and binary logistic regressions. The utilization of outpatient service in the study refers to the visits to private and government hospitals.ResultsOut of total 5,319 participants, 72.4% of participants visited outpatient services in private hospitals for their healthcare needs. Multivariate analysis showed that older age-group (80 years and above) and participants from urban were 35% and 53% times more likely to visit outpatient services in private hospitals, respectively. The elderly persons from Khyber Pakhtunkhwa were three times (AOR: 3.29, CI 2.5-4.8) more likely to visit government hospitals than their peers in Punjab. Participants who attended school (AOR: 1.21, CI 0.82-1.31) were more likely to utilize outpatient service in private hospitals. Elders from rich (AOR: 1.04, CI 0.84-1.13) and richest (AOR: 1.29, CI 0.89-1.87) wealth quintiles were more likely to visit private hospitals. The likelihood of the utilization of outpatient service in private hospitals increased by 17% with the increase in the frequency of consultation by three times and more.ConclusionsOur findings underscore a dire need for expanding the outreach of healthcare services, particularly government hospital facilities, for the elderly population. Moreover, the knowledge generated through this research may be employed to make particular behavioral interventions in areas, such as, age, caregiving for elderly living without spouse, poor, and elderly without social security or pension, and education.