Epidemiology of acromegaly in Italy: analysis from a large longitudinal primary care database

Abstract

Purpose

Epidemiological data are pivotal for the estimation of disease burden in populations.

Aim

Of the study was to estimate the incidence and prevalence of acromegaly in Italy along with the impact of comorbidities and hospitalization rates as compared to the general population.

Methods

Retrospective epidemiological study (from 2000 to 2014) and case control-study. Data were extracted from the Health Search Database (HSD). HSD contains patient records from about 1000 general practitioners (GPs) throughout Italy, covering a population of more than 1 million patients. It includes information about patient demographics and medical data including clinical diagnoses and diagnostic tests.

Results

At the end of the study period, 74 acromegaly patients (out of 1,066,871 people) were identified, resulting in a prevalence of 6.9 per 100,000 inhabitants [95% CI 5.4–8.5]. Prevalence was higher in females than men (p = 0.004), and showed a statistically significant trend of increase over time (p < 0.0001). Overall, incidence during the study period was 0.31 per 100,000 person-years. Hypertension and type II diabetes mellitus were the comorbidities more frequently associated with acromegaly (31.3 and 14.6%, respectively) and patients were more likely to undergo a high frequency of yearly hospitalization (≥3 accesses/year, p < 0.001) compared to sex-age matched controls.

Conclusions

This epidemiological study on acromegaly carried out using a large GP-based database, documented a disease prevalence of about 7 cases per 100,000 inhabitants. As expected, acromegaly was associated with a number of comorbidities (mainly hypertension and type II diabetes mellitus) and a high rate of patients' hospitalization.

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