Red blood cell distribution width to albumin ratio is correlated with prognosis of patients in coronary care unit

Table 2 The β value or hazard ratios or odds ratio for outcomes across groups of red blood cell distribution width-to-albumin ratios (95% confidence interval)

Mortality	Non-adjusted, HR	Non-adjusted, P value	Adjust I, HR	Adjust I, P value	Adjust II, HR	Adjust II, P value	PSM, OR	PSM, P value
365-day all-cause mortality
RA	1.18 (1.12, 1.25)	< 0.001	1.20 (1.13, 1.26)	< 0.001	1.08 (1.01, 1.15)	0.026	1.24 (1.10, 1.41)	< 0.001
Tertiles < 3.84	1.00		1.00		1.00		1.00
Tertiles 3.84-4.66	1.09 (0.85, 1.41)	0.478	1.09 (0.85, 1.40)	0.499	1.02 (0.79, 1.34)	0.859	1.28 (0.87, 1.87)	0.209
Tertiles > 4.66	1.62 (1.29, 2.03)	< 0.001	1.65 (1.31, 2.08)	< 0.001	1.30 (1.01, 1.69)	0.045	1.92 (1.28, 2.89)	0.002
30-day all-cause mortality
RA	1.14 (1.06, 1.22)	< 0.001	1.16 (1.08, 1.24)	< 0.001	1.01 (0.93, 1.10)	0.839
Tertiles < 3.84	1.00		1.00		1.00
Tertiles 3.84-4.66	1.03 (0.74, 1.44)	0.863	1.05 (0.75, 1.48)	0.765	0.99 (0.68, 1.43)	0.944
Tertiles > 4.66	1.40 (1.03, 1.90)	0.032	1.45 (1.06, 1.97)	0.019	1.06 (0.73, 1.52)	0.770
90-day all-cause mortality
RA	1.17 (1.10, 1.25)	< 0.001	1.19 (1.12, 1.27)	< 0.001	1.05 (0.97, 1.13)	0.198
Tertiles < 3.84	1.00		1.00		1.00
Tertiles 3.84-4.66	1.02 (0.76, 1.37)	0.879	1.03 (0.77, 1.39)	0.837	0.96 (0.70, 1.32)	0.795
Tertiles > 4.66	1.45 (1.11, 1.89)	0.007	1.49 (1.14, 1.95)	0.004	1.10 (0.81, 1.50)	0.545
Hospital LOS, β, days
RA	1.70 (1.41, 1.99)	< 0.001	1.76 (1.46, 2.06)	< 0.001	1.20 (0.85, 1.55)	< 0.001
Tertiles < 3.84	0.00		0.00		0.00
Tertiles 3.84-4.66	2.30 (1.36, 3.24)	< 0.001	2.54 (1.58, 3.51)	< 0.001	1.54 (0.52, 2.56)	0.003
Tertiles > 4.66	4.72 (3.77, 5.66)	< 0.001	4.98 (4.02, 5.94)	< 0.001	2.73 (1.61, 3.85)	< 0.001
CCU LOS, β, days
RA	0.66 (0.47, 0.86)	< 0.001	0.72 (0.52, 0.92)	< 0.001	0.23 (0.00, 0.46)	0.047
Tertiles < 3.84	0.00		0.00		0.00
Tertiles 3.84-4.66	1.07 (0.44, 1.70)	< 0.001	1.23 (0.59, 1.87)	< 0.001	0.67 (0.00, 1.34)	0.049
Tertiles > 4.66	2.20 (1.57, 2.82)	< 0.001	2.37 (1.73, 3.01)	< 0.001	0.80 (0.06, 1.53)	0.034

Non-adjusted and adjust I and II and propensity score matching were derived from Cox proportional hazards regression models. Adjust I covariates were adjusted for age, gender and ethnicity. Adjust II covariates were adjusted for age, gender, ethnicity, glucose, hematocrit, potassium, international normalized ratio, sodium, serum urea nitrogen, white blood cell, heart rate, respiratory rate, temperature, pulse oximetry-derived oxygen saturation_, coronary atherosclerotic heart disease, congestive heart failure, atrial fibrillation, chronic obstructive pulmonary disease, sequential organ failure assessment. propensity score matching further adjusted for age, ethnicity, respiratory rate, congestive heart failure, serum creatinine, serum urea nitrogen, hematocrit, hemoglobin, potassium, prothrombin time based on Supplementary Table 2. HR: Hazard ratio; PSM: Propensity score matching; OR: Odds ratio; RA: Red blood cell distribution width to albumin; LOS: Length of stay; CCU: Coronary care unit.