Mortality risk factors during readmission at the Department of Medicine

Figures & data

Table 1 Factors associated with death after readmission according to univariate logistic regression analysis

Factors	Survived, n=332	Died, n=75	OR	95% CI	p-value
Male patients	191 (57.53)	46 (61.33)	1.17	0.70–1.95	0.54
Age >60 years	161 (48.49)	56 (74.67)	3.14	1.78–5.49	<0.001
Previous admission ≥14 days	56 (16.88)	20 (20.67)	1.79	0.99–3.22	0.05
Readmission ≥14 days	75 (66.96)	37 (33.04)	3.33	1.98–5.61	<0.001
Previous number of admissions in the past yeara	2 (2–3)	2 (2–3)	1.09	0.96–1.23	0.17
Fever at previous discharge	38 (11.45)	15 (20.00)	1.93	1.00–3.73	0.05
Hemoglobin <12 g/dL at previous discharge	51 (15.36)	6 (8.00)	0.47	0.19–1.10	0.10
Nursing home stay	12 (3.61)	6 (8.00)	2.31	0.84–6.39	0.10
No caregiver	1 (0.30)	1 (1.33)	4.47	0.27–72.33	0.29
Dependent status	40 (12.05)	15 (20.00)	2.35	1.15–4.79	0.01
Co-morbid diseases >5	163 (49.10)	52 (69.33)	2.34	1.37–4.0	0.002
Co-morbid diseases >5b	188 (56.63)	68 (90.67)	7.44	3.31–16.68	<0.001
No of procedures >5	48 (14.46)	14 (18.67)	1.35	0.70–2.61	0.36
No of procedures >5b	258 (77.71)	72 (96.00)	6.88	2.10–22.48	0.001
CKD	56 (16.87)	3 (4.00)	0.20	0.06–0.67	0.009
Cancer	40 (12.05)	19 (25.33)	2.47	1.33–4.57	0.004
Hematologic malignancy	32 (9.64)	7 (9.33)	0.96	0.40–2.27	0.93
Pneumonia, COPD	20 (6.02)	10 (13.33)	2.40	1.07–5.36	0.03
Rheumatic diseases	14 (4.22)	2 (2.67)	0.62	0.13–2.97	0.53
CKDb	45 (13.55)	1 (1.33)	0.08	0.10–0.63	0.01
Cancerb	42 (12.65)	16 (21.33)	1.87	0.98–3.55	0.055
Hematologic malignancyb	35 (10.54)	7 (9.33)	0.87	0.37–2.05	0.75
Pneumonia, COPDb	25 (7.53)	11 (14.67)	2.11	0.98–4.50	0.05
Rheumatic diseasesb	14 (4.22)	2 (2.67)	0.62	0.13–2.97	0.53

Notes:

a Data presented as numbers (percentage) unless median (first to third quartile ranges);

b The readmission status.

Abbreviations: CKD, chronic kidney disease; OR, odds ratio.

Table 2 Factors associated with death after readmission according to multivariate logistic regression analysis

Factors	Adjusted OR	95% CI	p-value
Age >60 years	2.43	1.31–4.48	0.004
Co-morbid diseases >5a	5.02	2.11–11.90	<0.001
Admission duration ≥14 daysa	1.93	1.08–3.43	0.02
Fever at previous discharge	2.35	1.10–4.99	0.02
Hemoglobin <12 g/dL at previous discharge	0.35	0.13–0.92	0.03
No caregiver	14.6	0.83–255.04	0.06
Procedure >5a	3.91	1.13–13.49	0.03

Note:

a Readmission status.

Abbreviation: OR, odds ratio.