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Currently, chronic obstructive pulmonary disease (COPD) represents the fourth cause of death worldwide with significant economic burden. Comorbidities increase in number and severity with age and are identified as important determinants that influence the prognosis. In this observational study, we retrospectively analyzed data collected from the RePoSI register. We aimed to investigate comorbidities and outcomes in a cohort of hospitalized elderly patients with the clinical diagnosis of COPD. Socio-demographic, clinical characteristics and laboratory findings were considered. The association between variables and in-hospital, 3-month and 1-year follow-up were analyzed. Among 4696 in-patients, 932 (19.8%) had a diagnosis of COPD. Patients with COPD had more hospitalization, a significant overt cognitive impairment, a clinically significant disability and more depression in comparison with non-COPD subjects. COPD patients took more drugs, both at admission, in-hospital stay, discharge and 3-month and 1-year follow-up. 14 comorbidities were more frequent in COPD patients. Cerebrovascular disease was an independent predictor of in-hospital mortality. At 3-month follow-up, male sex and hepatic cirrhosis were independently associated with mortality. ICS-LABA therapy was predictor of mortality at in-hospital, 3-month and 1-year follow-up. This analysis showed the severity of impact of COPD and its comorbidities in the real life of internal medicine and geriatric wards.

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Overall prevalence of malnutrition was 30.7%, with higher rates in the northern macroarea (36.7%) than in central (28.0%), southern (26.9%) and island (16.7%) ones (p < 0.0001). This discrepancy appeared to be mainly related to the prevalence of overweight/obesity. By a multivariate model, malnutrition was significantly lower in males (p < 0.05) and surgical wards (p < 0.002), associated with geography (p < 0.05) and consistently higher in patients aged ≥65 years (p < 0.01), presenting with malignancies (p < 0.005) and having multidrug therapy (p < 0.05). The prevalence of hospital malnutrition is high also in Italy. It presents with different geographical distribution also according to overweight prevalence. This evidence should be considered when designing national nutritional policies.

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