Supplementary Table 
S6
.
Representativeness of Study Participants
Cancer type(s)/subtype(s)/stage(s)/condition
Soft tissue tumors
Considerations related to:
Sex
Soft tissue tumors are slightly more common among men. However, the s
ex distribution varies considerably among different subtypes.
Age
The median age at the time of 
diagnosis of 
all 
soft tissue tumors 
is around 
5
0-70
 years
, 
but varies considerably among different subtypes
.
 Hence, certain subtypes (e.g., lipoblastoma, desmoplastic small round cell tumors) are almost exclusively seen in children and young adults, whereas others (e.g., undifferentiated pleomorphic sarcoma) are almost exclusively seen after the age of 50.
Race/ethnicity
Soft tissue tumors are equally common among different race/ethnicity groups.
Geography
The incidence of most soft tissue tumors is independent of geography.
Other considerations
Soft tissue tumors is a collective term for more than 100 distinct tumor entities,
Overall representativeness of this study
The distribution of tumor types and the age and sex distribution among the patients reflect the tumors seen at tertiary sarcoma centres.