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

Table 4 Odds ratio estimates for moderate physical activity levels throughout the life-course among Cases and Controls from Ontario, Canada stratified by sex ^a

Physical activity levels for various periods	Total population	MALE			FEMALE
Physical activity levels for various periods	Adjusted OR^b (95% CI)	Cases N = 162 (%)	Controls N = 666 (%)	Adjusted OR^c (95% CI)	Cases N = 153 (%)	Controls N = 588 (%)	Adjusted OR^c (95% CI)
Moderate activity level at age 20s and 30s
Rarely/Never or a few times per month	1.00	20	23	1.00	10	27	1.00
2–4 times per week	0.98 (0.69, 1.39)	36	31	1.43 (0.86, 2.41)	27	35	0.65 (0.39, 1.08)
> 4 times per week	0.89 (0.64, 1.25)	44	46	1.03 (0.63, 1.69)	37	38	0.75 (0.46, 1.22)
Moderate activity level at ages 40s and 50s
Rarely/Never or a few times per month	1.00	35	30	1.00	35	29	1.00
2–4 times per week	1.12 (0.80, 1.56)	36	37	1.46 (0.90, 2.37)	34	38	0.87 (0.55, 1.41)
> 4 times per week	1.12 (0.79, 1.59)	38	33	1.39 (0.98, 2.59)	29	31	0.71 (0.42, 1.20)
Age not reached		2	1		2	2
Moderate activity level 2 years ago
Rarely/Never or a few times per month	1.00	20	23	1.00	25	24	1.00
2–4 times per week	1.09 (0.75, 1.56)	33	34	1.24 (0.74, 2.10)	39	41	0.94 (0.56, 1.59)
> 4 times per week	1.33 (0.93, 1.90)	48	43	1.51 (0.92, 2.47)	37	35	1.17 (0.69, 1.99)

a. All interaction terms with physical activity, age and sex were not statistically significant
b. Age group, sex, alcohol consumption, smoking, vegetable consumption, fruit consumption, red meat consumption, family history of pancreatic cancer, race, education adjusted OR
c. Age group, alcohol consumption, smoking, vegetable consumption, fruit consumption, red meat consumption, family history of pancreatic cancer, race, education adjusted OR

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