Table 1.

Purposive sampling criteria to guide recruitment in phase 1b

Characteristics	Target no of participants
Age at surgery
<50 years	5–8
≥ 50 years	5–8
Sex
Male	5–8
Female	5–8
Place of residence
Local (metropolitan Sydney)	6–10
Rural/regional	4–5
Tumour
Locally advanced primary rectal cancer	5–8
Locally recurrent rectal cancer	5–8
Total sample	10–20