Table 2

In-hospital mortality and major complication rates in unmatched and propensity score-matched groups

Unmatched groupPropensity-matched group
Control (n=2101)High-dose methylprednisolone
(n=824)
p ValueControl (n=812)High-dose methylprednisolone
(n=812)
p Value
In-hospital mortality (n (%))71 (3.4)23 (2.8)0.48524 (3.0)23 (2.8)0.884
Major complications (n (%))191 (9.1)151 (18.3)<0.00196 (11.8)144 (17.7)0.001
 Respiratory complications84 (4.0)53 (6.4)0.00639 (4.8)49 (6.0)0.324
 Urinary tract infection52 (2.5)29 (3.5)0.13332 (3.9)29 (3.6)0.698
 Sepsis16 (0.8)10 (1.2)0.2736 (0.7)10 (1.2)0.330
 Gastrointestinal ulcer/bleeding66 (3.1)71(8.6)<0.00131 (3.8)68 (8.4)<0.001
 Pulmonary embolism1 (0.05)4 (0.5)0.0241 (0.1)4 (0.5)0.218
Length of stay (median (IQR))16 (6–37)27 (10–52)<0.00123 (8–46)26 (10–52)<0.001