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Table 4 Thrombin generation variation between the Caucasian and African-Caribbean groups

From: Changes in thrombin generation and D-dimer concentrations in women injecting enoxaparin during pregnancy and the puerperium

Parameter Ethnicity 1 sttrimester 2 ndtrimester 3 rdtrimester Within one week of delivery ≥ 8 weeks postpartum
   N = 34 v 8 N = 67 v 24 N = 75 v 27 N = 45 v 23 N = 47 v 24
Lag time (min) Caucasian 4.11 (1.74) 3.49 (0.83) 3.62 (0.98) 3.03 (1.09) 2.98 (0.57)
A-C 3.27 (0.81) 3.18 (0.74) 3.34 (0.77) 2.73 (0.61) 2.72 (0.51)
ETP (nmol/L.min) Caucasian 1296 (651)* 1806 (557)* 1784 (451) 1944 (578) 1306 (356)
A-C 2126 (754) 2129 (556) 1810 (432) 1911 (540) 1402 (336)
Peak height (nmol/L) Caucasian 193 (124)* 284 (114)* 280 (92) 379 (119) 256 (60)
A-C 323 (146) 356 (112) 301 (96) 367 (91) 286 (63)
tt Peak (min) Caucasian 8.27 (3.6) 6.83 (1.8)* 6.95 (1.9) 5.23 (1.6) 5.65 (0.9)*
A-C 6.61 (2.2) 5.89 (1.3) 6.22 (1.6) 4.88 (1.0) 5.15 (0.9)
Start tail (min) Caucasian 27.94 (7.4) 26.37 (4.3) 26.07 (4.7) 24.29 (3.8) 20.42 (2.7)
A-C 28.10 (3.1) 26.73 (3.9) 25.93 (4.2) 24.40 (4.1) 20.69 (2.8)
  1. *Significance at <0.05 level; A-C refers to the African-Caribbean population, C refers to Caucasian population. N = number of samples in each trimester (Caucasian vs African-Caribbean). Mean with SD in brackets presented.