Table 1.

Distribution of missing data reasons among patients with at least one baseline and post-baseline assessment based on imaging and at least one assessment after 12 weeks.

	Number of patients (% within study)
	N9741	N9841	N0026
No missing data (complete data)	182 (38%)	90 (34%)	39 (44%)
Missing data, reason
(1) Inconsistently measured lesions	18 (4%)	5 (2%)	1 (1%)
(2) Missed assessment	276 (57%)	168 (63%)	48 (54%)
(3) Combination of (1) and (2)	8 (2%)	2 (1%)	1 (1%)
Total	484 (100%)	265 (100%)	89 (100%)