Table 3: Summary of adverse events in the safety population.

	Atezolizumab (n=609)	Docetaxel (n=578)
All adverse events	573 (94%)	555 (96%)
Treatment-related adverse events	390 (64%)	496 (86%)
Grade 3 or 4 adverse events	227 (37%)	310 (54%)
Treatment-related grade 3 or 4 adverse events	90 (15%)	247 (43%)
All deaths	10 (2%)	14 (2%)
Treatment-related death	0	1 (<1%)*
Serious adverse events	194 (32%)	181 (31%)
Adverse events leading to withdrawal from treatment	46 (8%)	108 (19%)
Adverse events leading to dose modification, delay, or interruption	152 (25%)	210 (36%)

^*One death due to a respiratory tract infection.