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Table 1 Independent explanatory variables

From: A three-step approach for the derivation and validation of high-performing predictive models using an operational dataset: congestive heart failure readmission case study

Variable

Values

Gender

Female, Male

Religion

Assembly Of God, Atheist, Baptist, Buddhist, Catholic, Christian, Church Of Christ, Episcopalian, Greek Orthodox, Islamic, Jehovah's Witness, Jewish, Latter Day Saints, Lutheran, Methodist, Missing, Muslim, Native, No spiritual preference/needs, Non-Denominational, Not Verified, Pentecostal, Presbyterian, Protestant, Seventh Day Adventist, Spiritual, Not Religious, Unable To Answer, Unitarian, Other

Marital status

Divorced, Legally Separated, Life/Domestic Partner, Married, Single, Unknown, Widowed

Race

African American, American Indian-Alaska, Asian, Hawaiian-Pacific Islander, Missing, Others, Patient Refused, Unknown, White Or Caucasian

Hospital service

Bone Marrow Transplant, Cardiology, Cardiothoracic Surgery, Emergency, General Surgery, Hematology/Oncology, Internal Medicine, Nephrology, Observation, Pulmonology, Rheumatology, Transplant Study, Vascular Surgery

Discharge disposition

Dsch/Xfer Court/Law Enforcement, Expired, Federal Hospital, Home Health Care Svc, Home Or Self Care, Hospice/Homem, Hospice/Medical Facility, Intermediate Care Facility, Left Against Medical Advice, Long Term Care, Psychiatric Hospital, Rehab Facility, Skilled Nursing Facility

Insurance/Finance Class

Agencies, Champus, Commercial, Facility, Grants&Studies, Medicaid, Medicare, Pehp, Self Pay, UT Misc Government, UT Workers Comp, Healthcare Network

Charlson Index Frequency (CharlsonIndexF)

Numeric values

Vital signs:

Numeric values

First Reading Weight KG (FW)

Last Reading Heart Rate (LHR)

Last Reading Systolic Blood Pressure (LSBP)

Last Reading Weight KG (LW)

Age at admission (AGE)

Numeric values

Zip code

Numeric values

Length of Stay (LOS)

Numeric values

Prior 6-month: Emergency Department Frequency (PriorEDF)

Numeric values

Prior 6-month: Mean CharlsonIndex Frequency (PriorCharlsonIndexF)

Numeric values

Prior 6-month: Mean Emergency Department Length of Stay (PriorEDLOS)

Numeric values

Clinical Classifications Software (CCS) Category for ICD-9-CM

Numeric values

1 Infectious and parasitic diseases

2 Neoplasms

3 Endocrine, nutritional and metabolic diseases, and immunity disorders

4 Diseases of the blood and blood-forming organs

5 Mental disorders

6 Diseases of the nervous system and sense organs

7 Diseases of the circulatory system

8 Diseases of the respiratory system

9 Diseases of the digestive system

10 Diseases of the genitourinary system

11 Complications of pregnancy, childbirth, and the puerperium

12 Diseases of the skin and subcutaneous tissue

13 Diseases of the musculoskeletal system and connective tissue

14 Congenital anomalies

15 Certain conditions originating in the perinatal Period

16 Injury and poisoning

17 Symptoms; signs; and Ill-defined conditions and factors influencing health status

18 Residual codes; unclassified; all E codes

32 Variables of laboratory tests:

Numeric values

Alanine Aminotransferase(ALT)-U/L

Albumin, Serum or Plasma(ALBUMIN)-g/dL

Alkaline Phosphatase (ALKPHOS)-U/L

Aspartate Aminotransferase(AST)-U/L

Basophil #(BASO)-k/uL

Basophil %(BASO%)-%

Bilirubin, total(BILIRUBIN)-mg/dL

B-Type Natriuretic Peptide (BNP)-pg/mL

Creatinine, Serum or Plasma(CREAT)-mg/dL

Eosinophil #(EOSIN)-k/uL

Eosinophil %(EOSIN%)-%

Glucose, serum or plasma(GLUC)-mg/dL

Granulocyte #(GRANULO)-k/uL

Granulocyte %(GRANULO%)-%

Hematocrit(HCT)-%

Hemoglobin(HGB)-g/dL

Lymph #(LYMPHO)-k/uL

Lymphocyte %(LYMPHO%)-%

Mean Corpuscular Hemoglobin(MCHGB)-pg

Mean Corpuscular Hgb Concentration(MCHGBCON)-g/dL

Mean Corpuscular Volume (MCVOL)-fL

Mean Platelet Volume(PLATVOL)-fL

Monocyte #(MONO)-k/uL

Monocyte %(MONO%)-%

Platelet(Platelet)-k/uL

Potassium, Serum or Plasma(POTASS)-mmol/L

Protein, total, serum or plasma(PROTEIN)-g/dL

Red Blood Cell(RBC)- M/uL

Red Cell Distribution Width(RCDW)-%

Sodium, Serum or Plasma(SODIUM)-mmol/L

Urea Nitrogen, Serum or Plasma(UREANIT)-mg/dL

White Blood Cell Count(WBC)-k/uL

  1. Explanatory variables are noted in bold and their values are noted using a normal font. The acronyms of the variables are listed in bold parentheses. The lab variable is presented in the format of name (acronym)-measure unit. The table includes the gender, religion, discharge disposition, marital status, insurance/finance class, and hospital service. It also includes the laboratory tests, Clinical Classification Software (CCS) category for ICD-9-CM diagnoses, Charlson Index frequency (CharlsonIndexF), vital sign variables, age at admission, zip code, length of stay (LOS), and the prior 6-month variables of emergency department frequency, mean Charlson Index frequency, and mean length of stay in the emergency department.