C-reactive Protein/Albumin Ratio and Acute Kidney Injury after Radical Cystectomy among Elderly Patients: A Propensity Score-Matched Analysis
Table 4
Demographic and clinical characteristics of elderly cystectomy patients dichotomized according to the optimal CRP/albumin ratio cut-off value (0.1) before and after propensity score matching.
Variable
Before propensity score matching
After propensity score matching
CRP/albumin ratio group ()
CRP/albumin ratio ≥0.1 group ()
SMD
value
CRP/albumin ratio group ()
CRP/albumin ratio group ()
SMD
value
Sex (male)
171 (83.0)
109 (80.1)
-0.072
0.567
85 (79.4)
86 (80.4)
0.023
>0.999
Age (years)
0.297
0.005
-0.011
0.932
Body mass index (kg/m2)
-0.263
0.008
-0.107
0.352
ASA physical status
0.096
0.427
0.126
0.405
≤2
180 (87.4)
114 (83.8)
5 (88.8)
90 (84.1)
3
26 (12.6)
22 (16.2)
12 (11.2)
17 (15.9)
Diabetes mellitus
53 (25.7)
26 (19.1)
-0.167
0.190
23 (21.5)
21 (19.6)
-0.047
0.851
Hypertension
108 (52.4)
67 (49.3)
-0.063
0.582
55 (51.4)
56 (52.3)
0.019
>0.999
Coronary artery disease
13 (6.3)
14 (10.3)
0.131
0.220
8 (7.5)
10 (9.3)
0.061
0.804
Cerebrovascular disease
9 (4.4)
7 (5.1)
0.035
0.796
3 (2.8)
6 (5.6)
0.126
0.508
COPD
10 (4.9)
7 (5.1)
0.013
>0.999
7 (6.5)
5 (4.7)
-0.084
0.774
Tumor stage
-0.056
0.639
-0.020
>0.999
<3
137 (66.5)
94 (69.1)
74 (69.2)
75 (70.1)
≥3
69 (33.5)
42 (30.9)
33 (30.8)
32 (29.9)
Tumor grade
0.048
0.747
0.127
0.625
2
6 (2.9)
3 (2.2)
3 (2.8)
1 (0.9)
3
200 (97.1)
133 (97.8)
104 (97.2)
106 (99.1)
Neoadjuvant chemotherapy
44 (21.4)
34 (25.0)
0.084
0.433
26 (24.3)
27 (25.2)
0.022
>0.999
White blood cells (103/μL)
0.322
<0.001
-0.015
0.856
Hemoglobin (g/dL)
-0.601
<0.001
-0.046
0.645
eGFR (mL/min/1.73m2)
-0.236
0.017
0.005
0.966
Uric acid (mg/dL)
0.099
0.327
0.061
0.660
Continuous variables are presented as the and categorical variables as number (%). CRP: C-reactive protein; SMD: standardized mean difference; ASA: American Society of Anesthesiologists; COPD: chronic obstructive pulmonary disease; eGFR: estimated glomerular filtration rate.
