Predictors of COVID-19 Readmission Among Patients Previously Hospitalized for SARS-CoV-2.

Introduction: Predictors of coronavirus disease 2019 (COVID-19)-related rehospitalization remain underexplored. This study aims to identify the main risk factors associated with rehospitalizations due to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) reinfections among residents of Lombardy, northern Italy.

Methods: A retrospective observational study was conducted using two linked administrative databases covering demographic data, comorbidities, hospital records, and COVID-19 data of Lombardy residents.

2001-2021 Comparative Persistence of Oral Antipsychotics in Patients Initiating Treatment: Superiority of Clozapine in Time-to-Treatment Discontinuation.

Background: Continuous antipsychotic (AP) therapy is crucial for managing psychotic disorders, and its early interruption reflects the drug's failure. Real-world epidemiological research is essential for confirming experimental data and generating new research hypotheses.

Methods: The persistence of oral APs in a large population sample from 2000 to 2021 was analyzed by comparing AP prescriptions over this period across four Italian provinces, using dispensing data linked via a record-linkage procedure among regional healthcare utilization databases.

Burden of the COVID-19 pandemic on adolescent mental health in the Lombardy Region, Italy: a retrospective database review.

Background: Previous research has assessed the impact of the COVID-19 pandemic on adolescent mental health (MH). How the pandemic changed healthcare resource utilisation for MH conditions was investigated less, however, in particular in Italy.

Methods: Data concerning outpatient visits in child and adolescent mental health services (CAMHSs), access to emergency departments (EDs), hospital admissions and drug prescriptions collected in administrative databases of the Lombardy Region, Italy, concerning adolescents 12-17 years old and occurring in the 2016-2021 period were analysed.

Incidence and risk of arterial and venous thrombotic events in Systemic Lupus Erythematosus patients: a population-based study.

Objectives: Current data on arterial and venous thrombotic events (ATE & VTE) and cardiovascular (CV) risk management in European systemic lupus erythematosus (SLE) population are limited. This study aimed to investigate the incidence and risk of thrombotic events and all-cause death in an Italian SLE cohort over the past decade, along with its pharmacotherapy.

Methods: Incident SLE cases between 2010 and 2019 were identified using administrative health databases of the Lombardy Region.

Association of Antipsychotic Polypharmacy and Two-Year All-Cause Mortality: A Population-Based Cohort Study of 33,221 Italian Continuous Users.

Differences in survival between patients treated with antipsychotic monotherapy vs. polytherapy are debated. This study aimed to examine the association of antipsychotic polytherapy with 2-year all-cause mortality in a population-based cohort.

Proton Pump Inhibitor Use and the Risk of Cardiovascular Complications and Death in Older Adults with Diabetes: A Population-Based Cohort Study.

Background: The unfavorable effect of proton pump inhibitors (PPIs) on cardiovascular (CV) outcomes and mortality was reported in the general population. We investigated the impact of PPIs on CV outcomes and total mortality in older people with diabetes mellitus (DM) for whom evidence is missing.

Methods: Using administrative health databases of the Lombardy Region, we analyzed the risk of myocardial infarction (MI), ischemic stroke and total mortality in individuals with DM (≥65 years of age) exposed to PPIs in 2015 and followed up to 2021.

Impact of first and second/third wave of COVID-19 pandemic on post-acute cardiovascular outcomes in Lombardy.

Background: COVID-19 has been associated with a higher risk of post-acute complications. Our aim was to analyze and compare post-acute cardiovascular complications of COVID-19 survivors of the first and second/third pandemic waves in Lombardy, in both hospitalized and non-hospitalized COVID-19 patients.

Methods And Results: We included adults aged ≥40 years infected during the first and second/third waves of COVID-19 pandemic.

Post-recovery impact of the second and third SARS-CoV-2 infection waves on healthcare resource utilization in Lombardy, Italy.

The administrative claims database of the Italian region Lombardy, the first in Europe to be hit by the SARS-CoV-2 pandemic, was employed to evaluate the impact on healthcare resource utilization following recovery from the second (mainly alpha-related variant) and third (delta-related) infection waves. 317,164 individuals recovered from the infection and became negative after the second wave, 271,180 after the third. Of them, 1571 (0.

Two years of SARS-CoV-2 pandemic and COVID-19 in Lombardy, Italy.

Lombardy, the largest and most densely populated Italian region, was severely hit in February 2020 by the first pandemic wave of SARS-CoV-2 and associated COVID-19. Since then, additional infection waves spread in the region. The aim of this study was to compare the first with the subsequent waves using the administrative database of the Lombardy Welfare directorate.

Prescribing trends of glucose-lowering drugs in older adults from 2010 to 2021: A population-based study of Northern Italy.

Aims: To describe glucose-lowering drugs prescribing pattern in a large population of older diabetics from 2010 to 2021.

Methods: Using linkable administrative health databases, we included patients aged 65-90 years treated with glucose-lowering drugs. Prevalence rate of drugs was collected within each study year.

Burden of Acute Kidney Injury among Adult Hospital Patients in the Italian Lombardy Region: A 20-Year Real-World Data Analysis.

Background: Acute kidney injury (AKI) is a frequent condition, with persistent shortage of large-scale epidemiological studies. We analyzed the population-wide healthcare system of the Italian Lombardy region over the 2000-2019 period, and evaluated AKI incidence, mortality, and related healthcare resource utilization and cost in all citizens 40 years and older.

Methods: The retrospective cohort analysis of an administrative claims database that routinely collects information about healthcare provision in a high-income region with 10 million citizens.

Post-COVID condition: dispensation of drugs and diagnostic tests as proxies of healthcare impact.

With the goal to increase knowledge on the healthcare impact of the post-COVID-19 condition we exploited the administrative claims database of Lombardy, the largest Italian region and the first after China to be heavily hit by the SARS-CoV-2 pandemic in February-May 2020. We chose to employ the dispensation of drugs and diagnostic tests as proxies of the impact of the post-COVID condition in 46,574 cases who recovered from COVID-19 and were negative at PCR testing within June 20, 2020. Data were obtained throughout the 18-month post-negativization period until December 2021 and results on the use of drugs and diagnostic tests were compared with those accrued in the same cases during the pre-COVID period in July-December 2019.

Dipeptidyl Peptidase-4 Inhibitors, Glucagon-like Peptide-1 Receptor Agonists, and Sodium-Glucose Cotransporter-2 Inhibitors and COVID-19 Outcomes.

Purpose: It has been reported that dipeptidyl peptidase-4 inhibitors (DPP-4i), glucagon-like peptide-1 receptor agonists (GLP-1 RA), and sodium-glucose cotransporter-2 inhibitors (SGLT-2i) have a role in modulation of inflammation associated with coronavirus disease 2019 (COVID-19). This study assessed the effect of these drug classes on COVID-19-related outcomes.

Methods: Using a COVID-19 linkable administrative database, we selected patients aged ≥40 years with at least 2 prescriptions of DPP-4i, GLP-1 RA, or SGLT-2i or any other antihyperglycemic drug and a diagnosis of COVID-19 from February 15, 2020, to March 15, 2021.

Palliative medicine favourably influences end-of-life cancer care intensity: a large retrospective database study.

Objectives: Hospice and home palliative care have been associated to a reduction of aggressive treatments in the end-of-life, but data in the Italian context are scanty. Therefore, we aim to investigate the role of palliative care on indicators of end-of-life intensity of care among patients with cancer in Lombardy, the largest Italian region.

Methods: Within a retrospective study using the healthcare utilisation databases of Lombardy, Italy, we selected all residents who died in 2019 with a diagnosis of cancer.

[Palliative Care in Lombardy Region: analysis of the care offer in 2019.].

Objective: The Lombardy Region has one of the most widespread and advanced models of Palliative Care (PC) in the country. However, there is a relative lack of updated data referring to the activity of the Lombardy PC network.

Methods: This work aims to describe the activity carried out in the two main PC care settings (home care and hospice) in 2019 through the analysis of the data sent by each Unit to the Lombardy Region.

Diabetes mellitus duration and mortality in patients hospitalized with acute myocardial infarction.

Background: Diabetes mellitus (DM) is associated with an increased mortality risk in patients hospitalized with acute myocardial infarction (AMI); however, no studies have investigated the impact of the duration of DM on in-hospital mortality. In this study, we evaluated in-hospital mortality in AMI patients according to DM status and its duration.

Methods: Using health administrative databases of Lombardy, DM patients≥50 years hospitalized with AMI from 2010 to 2019 were included in the analysis and were stratified according to the duration of DM: <5, 5-10, and > 10 years.

Effectiveness and safety of GLP-1 receptor agonists versus SGLT-2 inhibitors in type 2 diabetes: an Italian cohort study.

Background: GLP-1 receptor agonists (GLP-1 RA) and SGLT-2 inhibitors (SGLT-2i) have shown to reduce the risk of major adverse cardiovascular events (MACE), death and worsening nephropathy when added to standard of care. However, these two dug classes differ in efficacy and safety. We compared the effectiveness and safety profile of GLP-1 RA and SGLT-2i in a large and unselected cohort of patients with type 2 diabetes resident in Lombardy from 2015 to 2020.

Multiple Medication Adherence and Related Outcomes in Community-Dwelling Older People on Chronic Polypharmacy: A Retrospective Cohort Study on Administrative Claims Data.

Poor medication adherence compromises treatment efficacy and adversely affects patients' clinical outcomes. This study aims to assess (1) multiple medication adherence to the most common drug classes chronically prescribed to older people, (2) the factors associated, and (3) the clinical outcomes. This retrospective cohort study included 122,655 community-dwelling patients aged 65-94 years old, newly exposed to chronic polypharmacy, and recorded in the Lombardy Region (northern Italy) administrative database from 2016 to 2018.

Balancing Benefits and Harms of COVID-19 Vaccines: Lessons from the Ongoing Mass Vaccination Campaign in Lombardy, Italy.

Background. Limited evidence exists on the balance between the benefits and harms of the COVID-19 vaccines. The aim of this study is to compare the benefits and safety of mRNA-based (Pfizer-BioNTech and Moderna) and adenovirus-vectored (Oxford-AstraZeneca) vaccines in subpopulations defined by age and sex.

Impact of the post-COVID-19 condition on health care after the first disease wave in Lombardy.

Background: Lombardy was affected in the early months of 2020 by the SARS-CoV-2 pandemic with very high morbidity and mortality. The post-COVID-19 condition and related public health burden are scarcely known.

Setting And Design: Using the regional population administrative database including all the 48,932 individuals who survived COVID-19 and became polymerase-chain-reaction negative for SARS-CoV-2 by 31 May 2020, incident mortality, rehospitalizations, attendances to hospital emergency room, and outpatient medical visits were evaluated over a mid-term period of 6 months in 20,521 individuals managed at home, 26,016 hospitalized in medical wards, and 1611 in intensive care units (ICUs).

Insulin treatment in patients with diabetes mellitus and heart failure in the era of new antidiabetic medications.

Background: Coexistent heart failure (HF) and diabetes mellitus (DM) are associated with marked morbidity and mortality. Optimizing treatment strategies can reduce the number and severity of events. Insulin is frequently used in these patients, but its benefit/risk ratio is still not clear, particularly since new antidiabetic drugs that reduce major adverse cardiac events (MACEs) and renal failure have recently come into use.

Protective action of natural and induced immunization against the occurrence of delta or alpha variants of SARS-CoV-2 infection: a test-negative case-control study.

Background: The evolution of SARS-CoV-2 has led to the emergence of several new variants, and few data are available on the impact of vaccination on SARS-CoV-2 variants. We aimed to assess the association between natural (previous infection) and induced (partial or complete vaccination) exposure to SARS-CoV-2 and the onset of new infection supported by the delta variant, and of comparing it with that supported by alpha.

Methods: We performed a test-negative case-control study, by linking population-based registries of confirmed diagnoses of infection with SARS-CoV-2, vaccinations against Covid-19 and healthcare utilization databases of the Italian Lombardy Region.