Table 1.

Patient characteristics

		14-Day Readmission
Study variable	Total (N = 1,137)	Yes (n = 95)	No (n = 1,042)	OR (95% CI)	p-value
HRR	1.0 ± 0.2; 1.0 (0.4–1.4)	1.0 ± 0.2; 1.0 (0.6–1.3)	1.0 ± 0.2; 1.0 (0.4–1.4)	0.88 (0.23, 3.38)	0.857
< Optimal threshold (< 0.81)	175 (15.4)	19 (20.0)	156 (15.0)	1.00 (reference)
≥ Optimal threshold (≥ 0.81)	962 (84.6)	76 (80.0)	886 (85.0)	0.70 (0.41–1.20)	0.195
HMR	2.3 ± 2.0; 2.1 (0.7–47.0)	2.1 ± 0.6; 2.0 (0.8–3.8)	2.4 ± 2.1; 2.1 (0.7–47.0)	0.73 (0.53-1.00)	0.048
< Optimal threshold (< 2.18)	618 (54.4)	62 (65.3)	556 (53.4)	1.00 (reference)
≥ Optimal threshold (≥ 2.18)	519 (45.6)	33 (34.7)	486 (46.6)	0.61 (0.39–0.95)	0.027
HLR	1.9 ± 0.5; 1.9 (0.7–3.9)	1.9 ± 0.5; 1.8 (0.8–3.6)	1.9 ± 0.5; 1.9 (0.7–3.9)	0.89 (0.59–1.34)	0.568
< Optimal threshold (< 1.93)	615 (54.1)	58 (61.1)	557 (53.5)	1.00 (reference)
≥ Optimal threshold (≥ 1.93)	522 (45.9)	37 (38.9)	485 (46.5)	0.73 (0.48–1.13)	0.156
Demography
Age, years	70.2 ± 8.6; 71.0 (29.0-101.0)	70.4 ± 8.6; 71.0 (29.0-101.0)	69.0 ± 8.9; 70.0 (39.0–89.0)	0.98 (0.96–1.01)	0.143
20–49	15 (1.3)	4 (4.2)	11 (1.1)	1.00 (reference)
50–59	104 (9.1)	10 (10.5)	94 (9.0)	0.29 (0.08–1.09)	0.067
60–69	396 (34.8)	33 (34.7)	363 (34.8)	0.25 (0.08–0.83)	0.023
70–79	472 (41.5)	42 (44.2)	430 (41.3)	0.27 (0.08–0.88)	0.030
80+	150 (13.2)	6 (6.3)	144 (13.8)	0.11 (0.03–0.47)	0.003
Sex
Male	288 (25.3)	31 (32.6)	257 (24.7)	1.00 (reference)
Female	849 (74.7)	64 (67.4)	785 (75.3)	0.68 (0.43–1.06)	0.089

AST, aspartate aminotransferase; HRR, hemoglobin-to-RDW ratio; HMR, hemoglobin-to-monocyte ratio; HLR, hemoglobin-to-leukocyte ratio; OR, odds ratio; RBC, red blood cells; RDW, red cell distribution width; CI, confidence; WBC, white blood cells

Continuous variables are presented as mean  ±  standard deviation; median (minimum-maximum)

Categorical variables are presented as counts (percentage)

p-value < 0.05 are shown in bold