Table 2.

HER2 testing by hospital volume of systemic treatment in 2015–2016

Hospital volume	Hospitals no.	Patients no.	HER2 tested patients no. (%)	P value
< 13 patients	17	72	49 (68.1%)	< 0.001
13–31 patients	19	157	119 (75.8%)
32–76 patients	19	231	179 (77.5%)
> 76 patients	19	302	267 (88.4%)

Hospital volume-based differences in proportion of HER2 tested patients with metastatic gastroesophageal cancer diagnosed in 2015 and 2016. Hospitals are categorized in quartiles based on the hospital volume of all gastroesophageal cancer patients treated with systemic therapy in 2015 and 2016