Table 2.

Dwell Time Summary Measures from Three Microsimulation Models of Colorectal Cancer

Dwell Time*	Microsimulation Model
Summary Measure	MISCAN	CRC-SPIN	SimCRC
Time from adenoma incidence to adenoma progression to preclinical cancer (i.e., adenoma dwell time), in years
Mean	7.6	24.2	21.2
Median	6.0	23.0	19.0
Interquartile range	2–11	16–31	12–29
Time from preclinical cancer to cancer diagnosis (i.e., preclinical cancer dwell time or sojourn time), in years
Mean	3.0	1.6	4.0
Median	2.0	2.0	3.0
Interquartile range	1–4	1–2	2–5
Time from adenoma incidence to cancer diagnosis (i.e., overall dwell time), in years
Mean	10.6	25.8	25.2
Median	9.0	24.0	23.0
Interquartile range	5–14	17–33	15–33

^*All dwell times calculated among cancer cases