Table 1.

Benchmark QA resubmission rates

No. of resubmissions	Sites (n = 352)	3DCRT (n = 205)	IMRT (n = 100)	SIB (n = 119)
0	278* (79.0%)	168† (82.0%)	83† (83.0%)	98† (82.4%)
>1	74 (21.0%)	37 (18.0%)	17 (17.0%)	21 (17.6%)
1	61 (17.3%)	30 (14.6%)	15 (15.0%)	17 (14.3%)
2	12 (3.4%)	7 (3.4%)	2‡ (2.0%)	4 (3.4%)
3	1§ (0.3%)	—	—	—

Abbreviations’. 3DCRT = 3-dimensional conformai radiation therapy; IMRT = intensity-modulated radiation therapy; SIB = simultaneous integrated boost.

^*Two sites failed on first benchmark submission and never resubmitted for any modality.

^†Three, 6, and 5 sites failed on first submission and did not resubmit for 3DCRT, IMRT, and SIB, respectively.

^‡One of these 2 sites never passed the IMRT benchmark.

^§One site had one 3DCRT resubmission and 2 SIB resubmissions.