Covariate	Full Sample (n=234)	Possible (n=47)	Probable (n=5)	Unlikely (n=128)	Unrelated (n=90)	Nested p-value
Adverse event severity grade						0.88
Mean (sd)	1.8 (0.8)	2.0 (1.0)	1.6 (0.8)	1.5 (0.7)	2.0 (0.9)
Median (Min,Max)	1.5 (1.0, 5.0)	2 (1, 4)	1.0 (1.0, 2.8)	1 (1, 3)	2 (1, 5)
Adverse event onset date						0.26
Mean (sd)	2017-11-03 (161.1 days)	2017-09-20 (135.7 days)	2018-03-20 (177.8 days)	2017-10-15 (161.7 days)	2018-01-03 (163.3 days)
Median (Min,Max)	2017-10-05 (2016-05-02, 2019-01-13)	2017-09-02 (2017-03-18, 2018-11-15)	2018-02-02 (2017-10-03, 2018-11-24)	2017-10-01 (2016-05-02, 2019-01-13)	2018-01-03 (2017-03-14, 2019-01-08)