Table 2.

Relative hazard, 95% confidence interval and p-value by dose of metformin.

Medication category	Hospitalization	Mortality	ARDS
No metformin use (n = 759)	Reference
Metformin 500–850 mg (n = 256)	0.74 (0.51–1.07)0.11	0.35 (0.17–0.71)<0.01	0.80 (0.66–1.25)0.42
Metformin 1000 mg or more (n = 123)	0.77 (0.48-1.23)0.27	0.23 (0.06–0.78)0.01	0.66 (0.33–1.30)0.23