Table 2.

FIT return before and after mailed FIT programme implementation

	Intervention phase	Total ordered/mailed	Total returned 90 days n (%)	Total positive n (%)
Central California	Premailed FIT	1259	492 (39)	49 (9.9)
	Mailed FIT	3635	1277 (35)	88 (6.9)
Puget Sound	Premailed FIT	1510	725 (48)	87 (12)
	Mailed FIT	2022	672 (33)	58 (8.6)

To capture routine care, we identified ordered and returned FIT kits from 3 to 6 months prior to the implementation of the MFPs (ie, premailed FIT above). 90-day return rates are shown for the pre-MFP and post-MFP implementation.

FIT, faecal immunochemical test; MFP, mailed FIT programme.