TABLE 2

Mechanical ventilation in COVID-19 pneumonia

AuthorPatients enrolledEarly intubation n (%)Deceased n (%)Late intubation n (%)Deceased n (%)
Zuccon [79]5425 (46.3)9 (36)23 (42.6)12 (52.2)
Lee [80]4723 (48.9)13 (56.5)16 (34.0)7 (43.8)
Karagiannidis [81]10 0211318 (13.2)696 (52.8)141 (1.4)70 (49.6)
Grasselli [82]39882929 (73.4)1514 (51.7)151 (3.8)NA
Matta [83]11176 (68.5)54 (71.1)35 (31.5)20 (57.1)
Hernandez-Romieu [84]231132 (57.1)47 (35.6)42 (18.2)16 (38.1)
Mellado-Artigas [85]12261 (50)13 (21.3)23 (18.9)6 (26.1)
Pandya [86]7537 (49.3)20 (54.1)38 (50.7)18 (47.4)
Roedl [87]22366 (29.6)26 (39.4)46 (20.6)20 (43.5)
Bavishi [88]5430 (55.6)2 (6.7)24 (44.4)7 (29.2)
COVID-ICU Group [89]42442635 (62.1)957 (36.3)741 (17.5)244 (32.9)
Total49787332 (38.2)3351 (45.7)1280 (6.7)420 (37.2)

The weighted means of the different studies are summarised in the final row. NA: data not available.