Table 1.

Factors included in modified frailty index.

	Domain	Coding
1	Diabetes mellitus	Insulin dependent diabetes mellitus or non-insulin dependent diabetes mellitus
2	Functional status	Partially dependent or total dependent
3	Respiratory problems	Chronic obstructive pulmonary disease or current pneumonia
4	Congestive heart failure	Congestive heart failure
5	Myocardial infarction	Prior myocardial infarction
6	Other cardiac problems	Previous percutaneous coronary intervention or coronary surgery or angina
7	Hypertension	Hypertension requiring medication
8	Peripheral vascular disease	Peripheral vascular disease or resting pain
9	Impaired sensorium	Impaired sensorium
10	Cerebrovascular disease	Transient ischemic attack or cerebrovascular accident
11	Cerebrovascular disease with neurologic deficit	Cerebrovascular disease with deficit