. 2023 Jan 24;6(1):e2252371. doi: 10.1001/jamanetworkopen.2022.52371

Table 3. Associations of Prediagnostic Alcohol Consumption With Mortality After First Breast Cancer in the Women's Circle of Health Follow-up Study.

Total alcoholic drinks per week	All-cause mortality			Breast cancer–specific mortality
Total alcoholic drinks per week	Person-years	Total deaths	HR (95% CI)	Person-years	Breast cancer deaths	HR (95% CI)^a

Nondrinker^b	7928.6	211	1 [Reference]	7928.6	114	1 [Reference]
≤3	3870.7	81	0.83 (0.64-1.09)	3870.7	47	0.79 (0.55-1.12)
>3	1453.6	38	1.05 (0.73-1.51)	1453.6	24	1.06 (0.67-1.67)

Abbreviation: HR, hazard ratio.

^{^a}

Cox proportional hazards regression models adjusted for age at diagnosis, tumor stage, body mass index, cigarette smoking, educational level, household income, marital status, menopausal status, and physical activity. Competing risk models (Fine-Gray subdistribution hazard model) were used for breast cancer–specific mortality.

^{^b}

Defined as women who did not report drinking or drank zero alcoholic beverages per week.