Table 3: Comparison of clinical outcome of patients between the metformin group and no-metformin group.

Clinical outcome

Metformin group

No- metformin group

p-value

Hospitalization time (days)

16 (12-20)

17 (14-20)

0.7

In -hospital mortality, n (%)

4 (2.9)

24 (12.3)

0.01