Table 3.

Biomarker turnaround time in days by testing method within 6 months of diagnosis

Method	Biomarker tests, n	Mean	Min	25%	Median	75%	Max
FISH	975	23.6	3	12	16	25	151
IHC	511	22.2	0	7	9	22	163
Mutation-specific IHC	6	13.8	7	8	10	12	36
NGS	2179	41.5	0	16	30	50.5	163
PCR	551	23.1	0	12	17	28	114
RNA sequencing	78	64.2	24	36	59	68.75	163
Sanger sequencing	403	14.8	6	9	11	14	138
Unspecified	77	37.8	0	13	20	29	152

Turnaround time is defined as the days elapsed from the date that the specimen was received/collected to the date of the test result. The distribution of turnaround times is restricted to those between 0 and 182 days. We excluded 49 out of 746 patients who received at least one biomarker test due to negative turnaround times or whose turnaround times were greater than 182 days

FISH fluorescence in situ hybridization, IHC immunohistochemistry, Max maximum, Min minimum, NGS next-generation sequencing, PCR polymerase chain reaction, RNA ribonucleic acid