Table 1.

Baseline Characteristics by Level of Exercise after Diagnosis

	Post-Diagnosis Activity*
	≤ 3	3.1 – 9	9.1 – 18	18.1 – 27	> 27
N	102	125	101	81	252
Median MET-hours/week	0.4	6.3	13.5	23.3	49.1
Median age (years)	72	69	69	68	69
Mean body mass index (kg/m2)	25.9	26.2	25.6	24.7	25.6
Change in body mass index	−0.3	−0.1	−0.2	0	0
Stage of disease at diagnosis (%)
I/II	58	54	62	57	62
III	21	26	24	23	16
Missing (not metastatic)	21	20	14	20	22
Site of disease (%)
Colon	77	79	77	81	76
Rectal	23	21	23	19	24
Grade of differentiation (%)
Well/moderate	61	52	69	64	60
Poorly/undifferentiated	7	12	10	9	8
Missing	32	36	21	27	32
Smoking status (%)
Never smoker	37	34	33	43	33
Past smoker	49	48	58	44	56
Current smoker	4	7	6	3	3
Missing	10	11	3	10	8
Year of diagnosis (%)
Prior to 1990	15	18	20	15	14
1990–2000	64	58	64	64	57
After 2000	21	24	16	21	29
Median time to physical activity measurement (months)	15	15	17	17	17

^*by total metabolic equivalent tasks (METS) – hours per week