Table 1 Clinical Characteristics of Patients Before and After Propensity Score Matching
Characteristic | Before propensity score matching | After propensity score matching | ||||
|---|---|---|---|---|---|---|
TIR < 70 (n = 224) | TIR ≥ 70 (n = 234) | P-value | TIR < 70 (n = 191) | TIR ≥ 70 (n = 191) | P-value | |
Age, median (IQR), years | 67.0 (60.0–74.0) | 67.0 (61.0–73.8) | 0.937 | 67.0 (60.0–74.0) | 67.0 (59.5–72.5) | 0.670 |
Sex, n (%) | ||||||
 Male | 148 (66.1%) | 157 (67.1%) | 0.817 | 132 (69.1%) | 130 (68.1%) | 0.826 |
 Female | 76 (33.9%) | 77 (32.9%) | 59 (30.9%) | 61 (31.9%) | ||
BMI, median (IQR), kg/m2 | 23.0 (20.9–25.0) | 22.9 (21.3–25.4) | 0.707 | 23.0 (21.0–25.0) | 22.9 (21.3–25.4) | 0.971 |
Preoperative blood glucose, n (%) | ||||||
 < 6.1 | 35 (15.6%) | 80 (34.2%) |  < 0.001 | 35 (18.3%) | 47 (24.6%) | 0.135 |
 ≥ 6.1 | 189 (84.4%) | 154 (65.8%) | 156 (81.7%) | 144 (75.4%) | ||
Preoperative HbA1c, n (%) | ||||||
 < 7.5 | 46 (20.5%) | 62 (26.5%) | 0.133 | 43 (22.5%) | 43 (22.5%) | 1.000 |
 ≥ 7.5 | 178 (79.5%) | 172 (73.5%) | 148 (77.5%) | 148 (77.5%) | ||
Preoperative WBC, median (IQR) | 9.5 (7.1–12.6) | 8.4 (6.5–11.6) | 0.004 | 9.3 (7.0–12.2) | 8.6 (6.7–11.8) | 0.164 |
Preoperative neutrophil, median (IQR) | 6.9 (5.1–10.2) | 5.9 (4.2–8.8) | 0.004 | 6.6 (4.9–9.8) | 6.1 (4.4–9.0) | 0.215 |
Preoperative lymphocyte, median (IQR) | 1.5 (1.1–1.8) | 1.5 (1.1–1.9) | 0.420 | 1.4 (1.1–1.8) | 1.5 (1.1–1.8) | 0.769 |
Preoperative platelet, median (IQR) | 267.0 (215.0–354.2) | 273.5 (214.2–344.8) | 0.961 | 268.0 (215.0–355.0) | 279.0 (218.0–346.5) | 0.916 |
Preoperative CRP, n (%) | ||||||
 < 8 | 43 (19.2%) | 57 (24.4%) | 0.181 | 38 (19.9%) | 46 (24.1%) | 0.323 |
 ≥ 8 | 181 (80.8%) | 177 (75.6%) | 153 (80.1%) | 145 (75.9%) | ||
Anemia, n (%) | ||||||
 No | 87 (38.8%) | 96 (41.0%) | 0.633 | 78 (40.8%) | 78 (40.8%) | 1.000 |
 Yes | 137 (61.2%) | 138 (59.0%) | 113 (59.2%) | 113 (59.2%) | ||
Preoperative albumin, median (IQR) | 31.6 (28.1–35.1) | 33.1 (29.4–36.6) | 0.006 | 32.2 (28.8–35.5) | 32.6 (28.7–35.4) | 0.922 |
Preoperative creatinine, median (IQR) | 81.5 (60.8–108.2) | 78.5 (59.0–108.0) | 0.678 | 82.0 (60.0–110.5) | 76.0 (59.0–105.0) | 0.286 |
Smoking, n (%) | ||||||
 No | 165 (73.7%) | 176 (75.2%) | 0.703 | 140 (73.3%) | 143 (74.9%) | 0.726 |
 Yes | 59 (26.3%) | 58 (24.8%) | 51 (26.7%) | 48 (25.1%) | ||
Drinking, n (%) | ||||||
 No | 171 (76.3%) | 178 (76.1%) | 0.946 | 144 (75.4%) | 145 (75.9%) | 0.905 |
 Yes | 53 (23.7%) | 56 (23.9%) | 47 (24.6%) | 46 (24.1%) | ||
Hypertension, n (%) | ||||||
 No | 118 (52.7%) | 93 (39.7%) | 0.006 | 95 (49.7%) | 86 (45.0%) | 0.356 |
 Yes | 106 (47.3%) | 141 (60.3%) | 96 (50.3%) | 105 (55.0%) | ||
Kidney disease, n (%) | ||||||
 No | 168 (75.0%) | 155 (66.2%) | 0.040 | 139 (72.8%) | 136 (71.2%) | 0.732 |
 Yes | 56 (25.0%) | 79 (33.8%) | 52 (27.2%) | 55 (28.8%) | ||
LEAD, n (%) | ||||||
 No | 74 (33.0%) | 73 (31.2%) | 0.673 | 61 (31.9%) | 67 (35.1%) | 0.515 |
 Yes | 150 (67.0%) | 161 (68.8%) | 130 (68.1%) | 124 (64.9%) | ||
Preoperative bacterial culture, n (%) | ||||||
 Negative | 83 (37.1%) | 103 (44.0%) | 0.129 | 72 (37.7%) | 82 (42.9%) | 0.297 |
 Positive | 141 (62.9%) | 131 (56.0%) | 119 (62.3%) | 109 (57.1%) | ||
Wagner score, n (%) | ||||||
 1–3 | 160 (71.4%) | 173 (73.9%) | 0.548 | 140 (73.3%) | 144 (75.4%) | 0.639 |
 4–5 | 64 (28.6%) | 61 (26.1%) | 51 (26.7%) | 47 (24.6%) | ||
Number of toes, n (%) | ||||||
 1 | 163 (72.8%) | 170 (72.6%) | 0.977 | 137 (71.7%) | 140 (73.3%) | 0.731 |
 2–5 | 61 (27.2%) | 64 (27.4%) | 54 (28.3%) | 51 (26.7%) | ||