Diabetes 130-US hospitals for years 1999-2008
The dataset represents ten years (1999-2008) of clinical care at 130 US hospitals and integrated delivery networks. Each row concerns hospital records of patients diagnosed with diabetes, who underwent laboratory, medications, and stayed up to 14 days. The goal is to determine the early readmission of the patient within 30 days of discharge. The problem is important for the following reasons. Despite high-quality evidence showing improved clinical outcomes for diabetic patients who receive various preventive and therapeutic interventions, many patients do not receive them. This can be partially attributed to arbitrary diabetes management in hospital environments, which fail to attend to glycemic control. Failure to provide proper diabetes care not only increases the managing costs for the hospitals (as the patients are readmitted) but also impacts the morbidity and mortality of the patients, who may face complications associated with diabetes.
Characteristics
Multivariate
Subject Area
Health and Medicine
Associated Tasks
Classification, Clustering
Attribute Type
--
# Instances
101.8k
# Attributes
47
Info
The dataset represents ten years (1999-2008) of clinical care at 130 US hospitals and integrated delivery networks. It includes over 50 features representing patient and hospital outcomes. Information was extracted from the database for encounters that satisfied the following criteria. (1) It is an inpatient encounter (a hospital admission). (2) It is a diabetic encounter, that is, one during which any kind of diabetes was entered into the system as a diagnosis. (3) The length of stay was at least 1 day and at most 14 days. (4) Laboratory tests were performed during the encounter. (5) Medications were administered during the encounter. The data contains such attributes as patient number, race, gender, age, admission type, time in hospital, medical specialty of admitting physician, number of lab tests performed, HbA1c test result, diagnosis, number of medications, diabetic medications, number of outpatient, inpatient, and emergency visits in the year before the hospitalization, etc.
Introductory Paper
By Beata Strack, Jonathan DeShazo, Chris Gennings, Juan Olmo, Sebastian Ventura, Krzysztof Cios, John Clore. 2014
Published in BioMed Research International, vol. 2014
Provided by
University of California, Irvine
Creators
- John Clore
- Krzysztof Cios
- Jon DeShazo
- Beata Strack
DOI
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Features
| Attribute Name | Role | Type | Demographic | Description | Units | Missing Values |
|---|---|---|---|---|---|---|
| encounter_id | ID | Unique identifier of an encounter | no | |||
| patient_nbr | ID | Unique identifier of a patient | no | |||
| race | Feature | Categorical | Race | Values: Caucasian, Asian, African American, Hispanic, and other | yes | |
| gender | Feature | Categorical | Gender | Values: male, female, and unknown/invalid | no | |
| age | Feature | Categorical | Age | Grouped in 10-year intervals: [0, 10), [10, 20),..., [90, 100) | no | |
| weight | Feature | Categorical | Weight in pounds. | yes | ||
| admission_type_id | Feature | Categorical | Integer identifier corresponding to 9 distinct values, for example, emergency, urgent, elective, newborn, and not available | no | ||
| discharge_disposition_id | Feature | Categorical | Integer identifier corresponding to 29 distinct values, for example, discharged to home, expired, and not available | no | ||
| admission_source_id | Feature | Categorical | Integer identifier corresponding to 21 distinct values, for example, physician referral, emergency room, and transfer from a hospital | no | ||
| time_in_hospital | Feature | Integer | Integer number of days between admission and discharge | no | ||
| payer_code | Feature | Categorical | Integer identifier corresponding to 23 distinct values, for example, Blue Cross/Blue Shield, Medicare, and self-pay | yes | ||
| medical_specialty | Feature | Categorical | Integer identifier of a specialty of the admitting physician, corresponding to 84 distinct values, for example, cardiology, internal medicine, family/general practice, and surgeon | yes | ||
| num_lab_procedures | Feature | Integer | Number of lab tests performed during the encounter | no | ||
| num_procedures | Feature | Integer | Number of procedures (other than lab tests) performed during the encounter | no | ||
| num_medications | Feature | Integer | Number of distinct generic names administered during the encounter | no | ||
| number_outpatient | Feature | Integer | Number of outpatient visits of the patient in the year preceding the encounter | no | ||
| number_emergency | Feature | Integer | Number of emergency visits of the patient in the year preceding the encounter | no | ||
| number_inpatient | Feature | Integer | Number of inpatient visits of the patient in the year preceding the encounter | no | ||
| diag_1 | Feature | Categorical | The primary diagnosis (coded as first three digits of ICD9); 848 distinct values | yes | ||
| diag_2 | Feature | Categorical | Secondary diagnosis (coded as first three digits of ICD9); 923 distinct values | yes | ||
| diag_3 | Feature | Categorical | Additional secondary diagnosis (coded as first three digits of ICD9); 954 distinct values | yes | ||
| number_diagnoses | Feature | Integer | Number of diagnoses entered to the system | no | ||
| max_glu_serum | Feature | Categorical | Indicates the range of the result or if the test was not taken. Values: >200, >300, normal, and none if not measured | no | ||
| A1Cresult | Feature | Categorical | Indicates the range of the result or if the test was not taken. Values: >8 if the result was greater than 8%, >7 if the result was greater than 7% but less than 8%, normal if the result was less than 7%, and none if not measured. | no | ||
| metformin | Feature | Categorical | The feature indicates whether the drug was prescribed or there was a change in the dosage. Values: up if the dosage was increased during the encounter, down if the dosage was decreased, steady if the dosage did not change, and no if the drug was not prescribed | no | ||
| repaglinide | Feature | Categorical | The feature indicates whether the drug was prescribed or there was a change in the dosage. Values: up if the dosage was increased during the encounter, down if the dosage was decreased, steady if the dosage did not change, and no if the drug was not prescribed | no | ||
| nateglinide | Feature | Categorical | The feature indicates whether the drug was prescribed or there was a change in the dosage. Values: up if the dosage was increased during the encounter, down if the dosage was decreased, steady if the dosage did not change, and no if the drug was not prescribed | no | ||
| chlorpropamide | Feature | Categorical | The feature indicates whether the drug was prescribed or there was a change in the dosage. Values: up if the dosage was increased during the encounter, down if the dosage was decreased, steady if the dosage did not change, and no if the drug was not prescribed | no | ||
| glimepiride | Feature | Categorical | The feature indicates whether the drug was prescribed or there was a change in the dosage. Values: up if the dosage was increased during the encounter, down if the dosage was decreased, steady if the dosage did not change, and no if the drug was not prescribed | no | ||
| acetohexamide | Feature | Categorical | The feature indicates whether the drug was prescribed or there was a change in the dosage. Values: up if the dosage was increased during the encounter, down if the dosage was decreased, steady if the dosage did not change, and no if the drug was not prescribed | no | ||
| glipizide | Feature | Categorical | The feature indicates whether the drug was prescribed or there was a change in the dosage. Values: up if the dosage was increased during the encounter, down if the dosage was decreased, steady if the dosage did not change, and no if the drug was not prescribed | no | ||
| glyburide | Feature | Categorical | The feature indicates whether the drug was prescribed or there was a change in the dosage. Values: up if the dosage was increased during the encounter, down if the dosage was decreased, steady if the dosage did not change, and no if the drug was not prescribed | no | ||
| tolbutamide | Feature | Categorical | The feature indicates whether the drug was prescribed or there was a change in the dosage. Values: up if the dosage was increased during the encounter, down if the dosage was decreased, steady if the dosage did not change, and no if the drug was not prescribed | no | ||
| pioglitazone | Feature | Categorical | The feature indicates whether the drug was prescribed or there was a change in the dosage. Values: up if the dosage was increased during the encounter, down if the dosage was decreased, steady if the dosage did not change, and no if the drug was not prescribed | no | ||
| rosiglitazone | Feature | Categorical | The feature indicates whether the drug was prescribed or there was a change in the dosage. Values: up if the dosage was increased during the encounter, down if the dosage was decreased, steady if the dosage did not change, and no if the drug was not prescribed | no | ||
| acarbose | Feature | Categorical | The feature indicates whether the drug was prescribed or there was a change in the dosage. Values: up if the dosage was increased during the encounter, down if the dosage was decreased, steady if the dosage did not change, and no if the drug was not prescribed | no | ||
| miglitol | Feature | Categorical | The feature indicates whether the drug was prescribed or there was a change in the dosage. Values: up if the dosage was increased during the encounter, down if the dosage was decreased, steady if the dosage did not change, and no if the drug was not prescribed | no | ||
| troglitazone | Feature | Categorical | The feature indicates whether the drug was prescribed or there was a change in the dosage. Values: up if the dosage was increased during the encounter, down if the dosage was decreased, steady if the dosage did not change, and no if the drug was not prescribed | no | ||
| tolazamide | Feature | Categorical | The feature indicates whether the drug was prescribed or there was a change in the dosage. Values: up if the dosage was increased during the encounter, down if the dosage was decreased, steady if the dosage did not change, and no if the drug was not prescribed | no | ||
| examide | Feature | Categorical | The feature indicates whether the drug was prescribed or there was a change in the dosage. Values: up if the dosage was increased during the encounter, down if the dosage was decreased, steady if the dosage did not change, and no if the drug was not prescribed | no | ||
| citoglipton | Feature | Categorical | The feature indicates whether the drug was prescribed or there was a change in the dosage. Values: up if the dosage was increased during the encounter, down if the dosage was decreased, steady if the dosage did not change, and no if the drug was not prescribed | no | ||
| insulin | Feature | Categorical | The feature indicates whether the drug was prescribed or there was a change in the dosage. Values: up if the dosage was increased during the encounter, down if the dosage was decreased, steady if the dosage did not change, and no if the drug was not prescribed | no | ||
| glyburide-metformin | Feature | Categorical | The feature indicates whether the drug was prescribed or there was a change in the dosage. Values: up if the dosage was increased during the encounter, down if the dosage was decreased, steady if the dosage did not change, and no if the drug was not prescribed | no | ||
| glipizide-metformin | Feature | Categorical | The feature indicates whether the drug was prescribed or there was a change in the dosage. Values: up if the dosage was increased during the encounter, down if the dosage was decreased, steady if the dosage did not change, and no if the drug was not prescribed | no | ||
| glimepiride-pioglitazone | Feature | Categorical | The feature indicates whether the drug was prescribed or there was a change in the dosage. Values: up if the dosage was increased during the encounter, down if the dosage was decreased, steady if the dosage did not change, and no if the drug was not prescribed | no | ||
| metformin-rosiglitazone | Feature | Categorical | The feature indicates whether the drug was prescribed or there was a change in the dosage. Values: up if the dosage was increased during the encounter, down if the dosage was decreased, steady if the dosage did not change, and no if the drug was not prescribed | no | ||
| metformin-pioglitazone | Feature | Categorical | The feature indicates whether the drug was prescribed or there was a change in the dosage. Values: up if the dosage was increased during the encounter, down if the dosage was decreased, steady if the dosage did not change, and no if the drug was not prescribed | no | ||
| change | Feature | Categorical | Indicates if there was a change in diabetic medications (either dosage or generic name). Values: change and no change | no | ||
| diabetesMed | Feature | Categorical | Indicates if there was any diabetic medication prescribed. Values: yes and no | no | ||
| readmitted | Target | Categorical | Days to inpatient readmission. Values: <30 if the patient was readmitted in less than 30 days, >30 if the patient was readmitted in more than 30 days, and No for no record of readmission. | no |