Table 4.

Outcomes of patients according to the use of metformin after propensity score analysis (odd ratio [CI]).

	Day 7		Day 28
	Model 1: baseline parameters	Model 2: model 1 + HbA1c	Model 1: baseline parameters	Model 2: model 1 + HbA1c
Population/exposed (%)	N = 1576 952 (60%)	N = 1090 671 (62%)	N = 1576 952 (60%)	N = 1090 671 (62%)
Composite endpoint	0.838 [0.649−1.082]	0.824 [0.592−1.147]	0.783 [0.615−0.996]	0.822 [0.607−1.113]
IMV	0.925 [0.694−1.233]	0.901 [0.618−1.311]	0.915 [0.691−1.212]	0.932 [0.643−1.351]
Death	0.688 [0.470−1.007]	0.762 [0.465−1.248]	0.710 [0.537−0.938]	0.778 [0.549−1.102]

Composite endpoint combines tracheal intubation for mechanical ventilation (IMV) and death.