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Table 1 Baseline characteristics in unmatched and matched cohorts

From: Hospitalized patients with isolated distal deep vein thrombosis: anticoagulation therapy or not?

  Unmatched PSMa
non-AC n = 138 AC n = 288 p SD1 non-AC n = 111 AC n = 111 SD2
Age, year 67 (57–72) 67.5 (56.25–75.00) 0.500 0.036 67 (57–71) 67 (56–73) -0.033
BMI, kg/m2 22.5 (20.5–25.4) 24.03 (21.4–26.1) 0.012 0.228 22.5 (20.5–25.6) 23.5 (20.0–25.4) -0.052
Male, n (%) 84 (60.9) 135 (46.9) 0.007 -0.284 64 (57.7) 60 (54.1) -0.073
HTN, n (%) 68 (49.3) 115 (39.9) 0.068 -0.190 49 (44.1) 52 (46.8) 0.054
DM, n (%) 34 (24.6) 41 (14.2) 0.008 -0.265 20 (18.0) 19 (17.1) -0.024
RI, n (%) 22 (15.9) 28 (9.7) 0.062 -0.186 17 (15.3) 15 (13.5) -0.051
HI, n (%) 17 (12.3) 24 (8.3) 0.192 -0.132 12 (10.8) 13 (11.7) 0.028
Bedridden (≥ 3 days), n (%) 94 (68.1) 171 (59.4) 0.082 -0.182 70 (63.1) 70 (63.1) 0.000
ICU, n (%) 65 (47.1) 100 (34.7) 0.014 -0.254 46 (41.4) 49 (44.1) 0.055
Sepsis, n (%) 5 (3.6) 9 (3.1) 0.787 -0.028 4 (3.6) 7 (6.3) 0.125
AMI, n (%) 3 (2.2) 8 (2.8) 0.713 0.038 3 (2.7) 6 (5.4) 0.137
CHF, n (%) 7 (5.1) 13 (4.5) 0.799 -0.028 5 (4.5) 6 (5.4) 0.042
Stroke, n (%) 45 (32.6) 50 (17.4) 0.000 -0.357 27 (24.3) 22 (19.8) -0.109
Paraplegia, n (%) 2 (1.4) 7 (2.4) 0.724 0.073 2 (1.8) 3 (2.7) 0.061
Malignancy history, n (%) 21 (15.2) 45 (15.6) 0.967 0.011 19 (17.1) 20 (18.0) 0.024
Chemo-radiotherapy, n (%) 7 (5.1) 16 (5.6) 0.836 0.022 6 (5.4) 5 (4.5) -0.042
VTE history, n (%) 0 (0.0) 0 (0.0) - 0.000 0 (0.0) 0 (0.0) 0.000
Pregnancy, n (%) 0 (0.0) 1 (0.3) 1.000 0.078 0 (0.0) 0 (0.0) 0.000
Surgery, n (%) 56 (40.6) 192 (66.7) 0.000 0.542 53 (47.7) 53 (47.7) 0.000
WBC, 109/L 8.70 (6.52–11.01) 7.46 (5.75–10.46) 0.036 -0.112 8.64 (6.37–10.79) 7.94 (5.79–10.80) -0.041
HG, g/L 109 (95–126) 115 (99–128) 0.130 0.127 109 (96–124) 114 (96–126) 0.012
PLT, 109/L 200 (146–265) 189 (148–263) 0.983 0.012 201 (146–270) 191 (151–268) 0.026
CREA, μmol/L 65.8 (55.0–79.8) 68.6 (55.4–84.9) 0.465 0.001 66.0 (54.6–78.5) 69.7 (55.6–87.3) 0.113
D-dimer, mg/L 0.99 (0.54–2.99) 1.04 (0.48–2.84) 0.682 0.015 1.00 (0.54–2.99) 1.19 (0.57–2.87) 0.111
  1. BMI Body mass index, AC Anticoagulation, SD Standardized difference, HTN Hypertension, DM Diabetes mellitus, RI Renal insufficiency, HI Hepatic insufficiency, ICU Intensive care unit, AMI Acute myocardial infarction, CHF Congestive heart failure, VTE Venous thromboembolism, WBC White blood cell, HG Hemoglobin, PLT Platelet, CREA Creatine, PSM Propensity score matching
  2. aPropensity score of each patient was calculated by binary logistic regression model, treatment type (anticoagulation or not) was considered as dependent variable, and the independent variables contained age, male, BMI, HTN, DM, RI, HI, bedridden (≥ 3 days), ICU, stroke, malignancy history, surgery, WBC, and HG