Table 3.

Adjusted hazard ratios for triple-negative breast cancer total mortality and recurrence/disease-specific mortality and tea consumption over the first 60 months after diagnosis

Characteristics	Totala	Eventsa	HR(95%CI)
			First 6 months post-diagnosisb	First 18 months post-diagnosisc	First 36 months post-diagnosisc	First 60 months post-diagnosisc
Total mortality
Tea consumption
No	456	119	1.0	1.0	1.0	1.0
Yes	62	9	0.58(0.29,1.16)	0.76(0.47,1.21)	0.47(0.29,0.79)	0.57(0.34,0.93)
Tea consumption amount, gram per month
No	456	119	1.0	1.0	1.0	1.0
<100	48	6	0.48(0.21,1.11)	0.38(0.16,0.89)	0.31(0.13,0.71)	0.36(0.16,0.83)
≥100	14	3	0.99(0.30,3.25)	1.17(0.67,2.02)	0.63(0.35,1.16)	0.76(0.42,1.36)
P for trend			0.24	0.76	0.02	0.10
Recurrence/disease-specific mortality
Tea consumption
No	456	104	1.0	1.0	1.0	1.0
Yes	62	8	0.60(0.29,1.27)	0.58(0.33,1.02)	0.46(0.26,0.83)	0.54(0.31,0.96)
Tea consumption amount, gram per month
No	456	104	1.0	1.0	1.0	1.0
<100	48	5	0.44(0.17,1.10)	0.56(0.28,1.11)	0.30(0.12,0.75)	0.40(0.17,0.93)
≥100	14	3	1.55(0.47,5.05)	0.92(0.43,1.95)	0.66(0.32,1.36)	0.72(0.35,1.47)
P for trend			0.42	0.33	0.04	0.10

Note: Abbreviations: CI, confidence interval; HR, hormone receptor; MET, metabolic equivalent; TNM, tumor-node-metastasis

^aThe numbers of total and events refer to baseline survey.

^bAdjusted for age at diagnosis (continuous variable), education (<middle school, middle school, high school, >high school), marital status, Charlson comorbidity index (0, ≥1), menopausal status(yes, no), BMI at baseline (<18,18–24.99,25–29.99, ≥30), exercise participation at baseline (yes, no), soy protein intake (Q1–Q4), chemotherapy (yes, no), radiotherapy (yes, no), and TNM stage (I, II, III, unknown).

^cAdjusted for the same variables as above, but tea consumption was treated as a time-dependent variable.