. 2023 Mar 23;11:1107158. doi: 10.3389/fpubh.2023.1107158

Table 2.

Cox regression analysis between BRI and all-cause mortality and cardiovascular mortality.

		Model 1				Model 2			Model 3
		HR	95%CI	P	HR	95%CI	P	HR	95%CI	P
All-cause mortality
Q1(2.03–2.54)	1(Ref)			1(Ref)			1(Ref)
Q2(2.82–3.11)	0.87	0.83, 0.92	<0.001	0.97	0.92, 1.02	0.214	0.96	0.92, 1.01	0.158
Q3(3.36–3.67)	0.79	0.75, 0.84	<0.001	0.91	0.86, 0.96	<0.001	0.91	0.86, 0.96	<0.001
Q4(4.09–4.91)	0.87	0.83, 0.92	<0.001	0.95	0.90, 0.99	0.036	0.95	0.89, 0.99	0.039
P_trend			<0.001			0.008			0.010
Low-stable	1(Ref)			1(Ref)			1(Ref)
Moderate-stable	1.17	1.12, 1.23	<0.001	1.18	1.13, 1.23	<0.001	1.18	1.13, 1.24	<0.001
High-stable	2.09	1.99, 2.19	<0.001	1.74	1.66, 1.82	<0.001	1.74	1.66, 1.82	<0.001
CVD mortality
Q1(2.03–2.54)	1(Ref)			1(Ref)			1(Ref)
Q2(2.82–3.11)	0.83	0.77, 0.89	<0.001	0.92	0.86, 0.99	0.027	0.92	0.86, 0.98	0.018
Q3(3.36–3.67)	0.81	0.76, 0.87	<0.001	0.93	0.87, 1.01	0.056	0.93	0.87, 0.99	0.043
Q4(4.09–4.91)	0.91	0.84, 0.97	0.006	0.98	0.91, 1.05	0.597	0.98	0.91, 1.05	0.532
P_trend			0.009			0.675			0.617
Low-stable	1(Ref)			1(Ref)			1(Ref)
Moderate-stable	1.09	1.03, 1.16	0.004	1.11	1.05, 1.18	<0.001	1.12	1.05, 1.18	<0.001
High-stable	1.94	1.82, 2.07	<0.001	1.64	1.53, 1.75	<0.001	1.64	1.53, 1.75	<0.001

Data were showed by HR, 95% CI and P value. Model 1: Unadjusted. Model 2: Adjusted for age and gender. Model 3: Adjusted for age, gender, smoking, alcohol consumption, and physical activity. Q1: 1st Quartiles; Q2: 2nd Quartiles; Q3: 3rd Quartiles; Q4: 4th Quartiles. Q1 to Q4 are the quartiles of BRI at baseline.