BackgroundFollowing independence from the Soviet Union in 1991, Estonia introduced a
national insurance system, consolidated the number of health care providers, and
introduced family medicine centred primary health care (PHC) to strengthen the
health system.MethodsUsing routinely collected health billing records for 2005–2012, we examine
health system utilisation for seven ambulatory care sensitive conditions (ACSCs)
(asthma, chronic obstructive pulmonary disease [COPD], depression, Type 2
diabetes, heart failure, hypertension, and ischemic heart disease [IHD]), and by
patient characteristics (gender, age, and number of co–morbidities). The
data set contained 552 822 individuals. We use patient level data to test
the significance of trends, and employ multivariate regression analysis to
evaluate the probability of inpatient admission while controlling for patient
characteristics, health system supply–side variables, and PHC use.FindingsOver the study period, utilisation of PHC increased, whilst inpatient admissions
fell. Service mix in PHC changed with increases in phone, email, nurse, and
follow–up (vs initial) consultations. Healthcare utilisation for diabetes,
depression, IHD and hypertension shifted to PHC, whilst for COPD, heart failure
and asthma utilisation in outpatient and inpatient settings increased.
Multivariate regression indicates higher probability of inpatient admission for
males, older patient and especially those with multimorbidity, but protective
effect for PHC, with significantly lower hospital admission for those utilising
PHC services.InterpretationOur findings suggest health system reforms in Estonia have influenced the shift of
ACSCs from secondary to primary care, with PHC having a protective effect in
reducing hospital admissions.