Trajectories of physical activity, from young adulthood to older adulthood, and pancreatic cancer risk; a population-based case-control study in Ontario, Canada

Table 2 Odds ratio estimates for physical activity trajectories across life-course and pancreatic cancer risk among Cases and Controls from Ontario, Canada

Age-specific physical activity trajectories	Cases N = 315	%	Controls N = 1254	%	OR^a (95% CI)	OR^b (95% CI)
Group 1: Inactive at all ages	56	18	196	16	1.00	1.00
Group 2: Low activity at all ages	107	34	411	33	0.94 (65, 1.35)	1.11 (0.75, 1.66)
Group 3: High activity in young adulthood with slight decrease in older adulthood	61	19	264	21	0.80 (0.53, 1.21)	0.98 (0.62, 1.53)
Group 4: Increasingly active	15	5	57	5	0.95 (0.50, 1.80)	1.11 (0.56, 2.21)
Group 5: High activity in young adulthood with substantial decrease in older adulthood	44	14	237	19	0.71 (0.45, 1.10)	0.76 (0.47, 1.23)
Group 6: Persistent high activity	32	10	89	7	1.28 (0.77, 2.14)	1.50 (0.86, 2.62)

a. Age group and sex adjusted OR
b. Age group, sex, alcohol consumption, smoking, vegetable consumption, fruit consumption, red meat consumption, family history of pancreatic cancer, race, education adjusted OR

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