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Table 1 Comparison of general characteristics between PE and non-PE groups after cesarean section (x ± s or median [P25, P75])

From: Predictive value of D-dimer and analysis of risk factors in pregnant women with suspected pulmonary embolism after cesarean section

  PE
N = 30
Non-PE
n = 95
Coefficient P value
Age (years) 31.27 ± 5.29 31.62 ± 5.07 − 0.330 0.752a
BMI (kg/m2) 27.99 ± 4.76 26.54 ± 3.77 0.982 0.324a
Gestational age at delivery (weeks) 35.69 ± 2.66 34.48 ± 4.10 1.228 0.073a
Neonatal birth weight (g) 2750.00 ± 744.81 2264.82 ± 859.06 2.060 0.637a
Neonatal body length (cm) 47.18 ± 4.53 44.22 ± 5.60 − 1.971 0.053a
Mean arterial pressure (mmHg) 93.31 ± 19.55 101.85 ± 16.10 − 2.370 0.443a
Shock index 0.87 [0.58, 1.12] 0.70 [0.62, 0.80] − 1.931 0.042b
Apgar score at 1 min 10.00 [4.00, 10.00] 9.00 [7.00, 10.00] − 0.053 0.957b
Apgar score at 5 min 10.00 [9.00, 10.00] 10.00 [10.00, 10.00] − 0.276 0.782b
Modified Wells score 3.0 [1.5, 6.0] 3.0 [1.5, 4.5] − 1.271 0.204b
Laboratory test results within postpartum 24 h     
 D-dimer (mg/L) 3.00 [1.01, 6.91] 1.24 [7.54, 2.38] − 4.659 0.000b
 Fibrinogen (g/L) 3.50 [2.70, 4.53] 3.80 [3.20, 4.30] − 0.900 0.368b
 PDW (%) 16.95 [15.30, 17.60] 17.40 [16.20, 18.20] − 1.491 0.136b
 RDW (%) 14.50 [13.13, 17.50] 14.50 [13.50, 16.80] − 0.286 0.775b
 CK (u/L) 130.50 [58.25, 256.75] 128.50 [84.90, 221.25] − 0.225 0.822b
 CK-MB (u/L) 22.00 [13.00, 72.75] 27.00 [18.00, 44.40] − 0.384 0.701b
  1. BMI, body mass index; PDW, platelet distribution width; RDW, red cell distribution width; CK, creatine kinase; CK-MB, creatine kinase myocardial band
  2. aEvaluated using the t test
  3. bEvaluated using the Mann–Whitney U test