Table 1 Baseline characteristics of the patients by blood glucose (mmol/L)
Characteristics | Total patients (n = 217) | Blood glucose Quartile(mmol/L) | P for Trend†| |||
|---|---|---|---|---|---|---|
Group 1 0.00–5.30 (n = 67) | Group 2 5.30–5.70 (n = 49) | Group 3 5.70–6.60 (n = 47) | Group 4  > 6.60 (n = 54) | |||
Demographics | ||||||
 Mean age, years (SD) | 73(11.2) | 72.2(12.5) | 72.8(12.7) | 74.5(10.0) | 73.0(9.1) | 0.58 |
 Female gender | 152(70.0) | 43(64.2) | 37(75.5) | 32(68.1) | 40(74.1) | 0.51 |
 Current Smoking | 41(18.9) | 16(23.9) | 6(12.2) | 9(19.1) | 10(18.5) | 0.47 |
 Alcohol abuse | 42(19.4) | 14(20.9) | 7(14.3) | 10(21.3) | 11(20.4) | 0.79 |
 Meantime from hospitalization to operation, days (SD) | 5.5(3.2) | 5.2(3.3) | 5.4(2.7) | 5.4(3.2) | 6.1(3.6) | 0.44 |
 Family history of VTE | 46(21.2) | 9(13.4) | 11(22.4) | 7(14.9) | 19(35.2) | 0.02 |
Comorbidity | ||||||
 Hypertension | 102(47.0) | 23(34.3) | 21(42.9) | 23(48.9) | 35(64.8) | 0.01 |
 Diabetes | 44(20.3) | 5(7.5) | 2(4.1) | 5(10.6) | 32(59.3) | < 0.001 |
 Coronary artery disease (CAD) | 33(15.2) | 14(20.9) | 10(20.4) | 4(8.5) | 5(9.3) | 0.12 |
 Cerebrovascular disease | 60(27.6) | 11(16.4) | 17(34.7) | 11(23.4) | 21(38.9) | 0.03 |
 Chronic renal failure | 17(7.8) | 7(10.4) | 3(6.1) | 3(6.4) | 4(7.4) | 0.81 |
 Chronic pulmonary disease | 22(10.1) | 10(14.9) | 3(6.1) | 6(12.8) | 3(5.6) | 0.25 |
 Malignancy | 12(5.5) | 2(3.0) | 1(2.0) | 5(10.6) | 4(7.4) | 0.20 |
Time from injury to admission | ||||||
 ≤ 12 h | 105(48.4) | 23(34.3) | 28(57.1) | 24(51.1) | 30(55.6) | 0.12 |
 12–24 h | 44(20.3) | 15(22.4) | 10(20.4) | 11(23.4) | 8(14.8) | |
 ≥ 24 h | 68(31.3) | 29(43.3) | 11(22.4) | 12(25.5) | 16(29.6) | |
Fractured limbs | ||||||
 Left | 112(51.6) | 36(53.7) | 28(57.1) | 22(46.8) | 26(48.1) | 0.70 |
 Right | 105(48.4) | 31(46.3) | 21(42.9) | 25(53.2) | 28(51.9) | |
Baseline biomarker concentrations (Mean, SD) | ||||||
 White blood cell count, × 10^9/L | 8.4(2.4) | 7.5(2.2) | 8.2(2.5) | 8.8(2.1) | 9.4(2.4) | 0.002 |
 Neutrophil count, × 10^9/L | 6.3(2.3) | 5.4(2.0) | 6.1(2.4) | 6.6(2.3) | 7.3(2.3) | 0.15 |
 Lymphocyte count, × 10^9/L | 1.3(0.6) | 1.4(0.6) | 1.3(0.5) | 1.3(0.4) | 1.4(0.7) | 0.95 |
 Platelet count, × 10^9/L | 221.3(66.0) | 207.2(69.6) | 207.3(69.7) | 226.3(65.4) | 207.1(58.0) | 0.50 |
 D-Dimer count, × ug/ml | 6.4(6.5) | 4.9(5.8) | 7.0(6.2) | 6.4(6.6) | 7.7(7.2) | 0.39 |