Clinical Characteristics and Disease Burden of Diabetic Patients Based on Tianjin Regional Database

Boehringer Ingelheim

Status: Completed

Conditions: Diabetes

Study type: Observational

Funder types: Industry; Other

Identifiers

NCT04903496

1245-0203

Details and patient eligibility

About

The study aims to investigate the clinical characteristics, treatment, and economic burden of disease of Chinese diabetic/non-diabetic patients with/without established cardiovascular disease (CVD), chronic kidney disease (CKD), or at high cardiovascular risk, including:

• Primary objectives: describe the proportion of Chinese diabetic/non-diabetic patients with established cardiovascular disease, CKD, or at high cardiovascular risk including hypertension and hyperlipidemia
• Secondary objectives: describe the demographic characteristics of the last visit for all patients, and the demographic characteristics of inpatients over time; investigate the clinical characteristic for all patients

Enrollment: 1,233,162 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Patients in the Tianjin regional database from 01/01/2015 to 31/12/2019
• Group A: patients with diagnosis of diabetes, and with diagnosis of cardiovascular disease, heart failure, chronic kidney disease or at high cardiovascular risk
• Group B: patients with diagnosis of diabetes, but not with diagnosis of cardiovascular disease, heart failure, chronic kidney disease or at high cardiovascular risk
• Group C: patients with diagnosis of cardiovascular disease, heart failure, chronic kidney disease or at high cardiovascular risk, but not with diagnosis of diabetes
• Group D: patients without diagnosis of cardiovascular disease, heart failure, chronic kidney disease or at high cardiovascular risk, and without diagnosis of diabetes. We will randomly select a group of non-diabetic patients without any of the above diseases by matching on age and gender

Definition of diabetes, cardiovascular disease, chronic kidney disease and high cardiovascular risk:

• Diabetes: patients with at least 1 discharged diagnosis or 2 outpatient diagnosis of diabetes (the first diagnosis will be the index diagnosis, and the time interval between diagnoses is not restricted) (International classification of disease (ICD)-10 E10-E14);
• Cardiovascular disease: patients with at least 1 discharged diagnosis or 2 outpatient diagnosis of ischemic heart diseases (the first diagnosis will be the index diagnosis, and the time interval between diagnoses is not restricted) (ICD-10 I20~I25); or patients with at least 1 discharged diagnosis or 2 outpatient diagnosis of cerebrovascular diseases (the first diagnosis will be the index diagnosis, and the time interval between diagnoses is not restricted) (ICD-10 I60~I69); or patients with at least 1 discharged diagnosis or 2 outpatient diagnosis of ischemic peripheral artery disease (the first diagnosis will be the index diagnosis, and the time interval between diagnoses is not restricted) (ICD-10 E10.501, E11.603, E14.501, E14.606, E14.503, I73.9, I99.03, I99.04);
• Heart failure: patients with at least 1 discharged diagnosis or 2 outpatient diagnosis of heart failure (the first diagnosis will be the index diagnosis, and the time interval between diagnoses is not restricted) (ICD-10 I50);
• Chronic kidney disease (CKD): inpatients with at least once 1 discharged diagnosis CKD (ICD-10 N18), or inpatients with the last estimated glomerular filtration rate (eGFR, calculated by Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation) <60 mL/min/1.73 m2 or prescription of dialysis, but not with the diagnosis of acute kidney injury (ICD-10 N17); or outpatients with at least 2 diagnosis of CKD (the first diagnosis will be the index diagnosis, and the time interval between diagnoses is not restricted) or with two consecutive eGFR (calculated by CKD-EPI equation) <60 mL/min/1.73 m2 by 90 days or more;
• High cardiovascular risk: patients with at least 1 discharged diagnosis or 2 outpatient diagnosis of hypertension (the first diagnosis will be the index diagnosis, and the time interval between diagnoses is not restricted) (ICD-10 I10~I15); or at least 1 discharged diagnosis or 2 outpatient diagnosis of hyperlipidemia (ICD-10 E78.001-E78.003, E78.101, E78.203, E78.301-E78.304, E78.306, E78.401, E78.501, E78.902);

Exclusion criteria

• Patients with non-Chinese nationalities
• Duplicated storage (records with same inpatient code)

Trial design

1,233,162 participants in 4 patient groups

In- and outpatients: diabetic with risk factors (RF) [Arm A]

Description:

In- and outpatients with diagnosis of diabetes, and with diagnosis of risk factors cardiovascular disease (CVD), heart failure (HF), chronic kidney disease (CKD) or at high cardiovascular (CV) risk identified in the Tianjin regional medical database.

In- and outpatients: diabetic without RF [Arm B]

Description:

In- and outpatients with diagnosis of diabetes, but not with diagnosis of risk factors CVD, HF, CKD or at high CV risk identified in the Tianjin regional medical database.

In- and outpatients: non-diabetic with RF [Arm C]

Description:

In- and outpatients without diabetes but with diagnosis of risk factors CVD, HF, CKD or at high CV risk identified in the Tianjin regional medical database.

In- and outpatients: non-diabetic without RF [Arm D]

Description:

In- and outpatients without diabetes and without diagnosis of risk factors CVD, HF, CKD or at high CV risk identified in the Tianjin regional medical database.