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Table 1 List of Variables entered into the Propensity Model and their Description

From: The impact of statins on health services utilization and mortality in older adults discharged from hospital with ischemic heart disease: a cohort study

Variable

Measure

Source

Outcomes and Exposures

  

Physician Visits

Continuous

PHRU physician services database

Hospitalizations

Continuous

PHRU hospitalization database

Coronary Re-vascularizaton

Continuous

ICONS (Inpatient chart)

Mortality

Yes/No

ICONS (Vital Statistics)

Demographics

  

Age

Continuous

Categorical: 66-75, 75-80, >80 (by tertiles)

PHRU (Pharmacare database)

Gender

Male, Female

ICONS (Inpatient chart)

Region of Province where Patient Resides

Northern, Eastern, Western, Southern

ICONS (Inpatient chart)

Risk Factors

  

Total blood cholesterol measured in hospital

Yes/No

ICONS (Inpatient chart)

LDL cholesterol measured in hospital

Yes/No

ICONS (Inpatient chart)

HDL cholesterol measured in hospital

Yes/No

ICONS (Inpatient chart)

Triglycerides measured in hospital

Yes/No

ICONS (Inpatient chart)

Diabetes

Yes/No

ICONS (Patient reported)

Hypertension

Yes/No

ICONS (Patient reported)

Smoking

Past, Current, Never

ICONS (Patient reported)

Family History of CVD

Yes/No

ICONS (Patient reported)

Previous PTCA

Yes/No

ICONS (Patient reported)

Previous CABG

Yes/No

ICONS (Patient reported)

Previous CHF

Yes/No

ICONS (Patient reported)

Previous Cardiac Catheterization

Yes/No

ICONS (Patient reported)

Previous Myocardial Infarction

Yes/No

ICONS (Patient reported)

Previous stroke

Yes/No

ICONS (Patient reported)

Previous TIA

Yes/No

ICONS (Patient reported)

Year of Entry into study

By Quartiles

ICONS (Inpatient chart)

Number of distinct prescription medications in 6 months pre-hospitalization

Continuous

Categorical: <3, 3-<6, 6-<9, 9 (by quartiles)

PHRU Pharmacare database

In-hospital clinical data

  

Discharge diagnosis

UA/AMI

ICONS (Health Records)

In-hospital procedures (PTCA, CABG, EST, Cardiac catheterization)

Yes/No

ICONS (Inpatient Chart)

Medications on discharge (ASA, Beta-blockers, CCB, ACE, Fibrates)

Yes/No

ICONS (Inpatient Chart)