The use of hospital admission rates for ambulatory care sensitive conditions (ACSCs) has become an established tool for analyzing access to care [1,2]. ACSCs are conditions for which good outpatient care can potentially prevent the need for hospitalization. High rates of hospital admissions for ACSCs may provide evidence of problems with patient access to primary healthcare, inadequate skills and resources, or a mismatch in services. Thus, ACSC hospitalization rates provide a practical way of evaluating primary care delivery and thereby identifying and targeting places where it may be possible to improve access and quality in the health care delivery system. Studies have identified several factors that impact the rates of hospital admissions for.