Modification of the association between recreational physical activity and survival after breast cancer by promoter methylation in breast cancer-related genes

Table 2 Age-adjusted HRs and 95% CIs for the association between lifetime recreational physical activity and 15-year all-cause and breast cancer-specific mortality among a population-based sample of 1254 women with a first primary breast cancer, Long Island Breast Cancer Study Project

	All-cause mortality			Breast cancer-specific mortality
Recreational physical activity^a
Inactive	129/294	1.00	Reference	55/294	1.00	Reference
<6.36 h/week	144/497	0.71	(0.56–0.90)	66/497	0.60	(0.42–0.86)
≥ 6.36 h/week	148/463	0.75	(0.59–0.94)	65/463	0.66	(0.46–0.95)

^aCleveland et al. [14] previously reported age-, BMI-, and menopausal status-adjusted associations for prediagnostic recreational physical activity (measured as metabolic equivalents of task-h/week), with follow-up though 2002

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