Table 1.

Baseline characteristics of propensity matched cohort.

Characteristic	Metformin users (n = 178)	Non-metformin users (n = 124)	p-value
Age, mean and standard deviation years	75.6 ± 5.4	76.5 ± 5.4	0.15
Female gender, %	36	36	0.49
Black, %	71	70	0.19
Diabetes, %	100	100	1.0
Hypertension, %	55	55	0.31
Charlson score, mean and standard deviation	3.97 ± 1.18	4.19 ± 1.37	0.14
Heart failure, %	49	50	0.43