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. Author manuscript; available in PMC: 2020 Nov 1.
Published in final edited form as: J Trauma Acute Care Surg. 2019 Nov;87(5):1052–1060. doi: 10.1097/TA.0000000000002398

Table 3. Aggregation of native and estradiol pre-treated platelets after ADP or PAF stimulation by sex.

Data presented as median (25–75 interquartile range). P value reflective of Wilcoxon signed rank test.

Stimulant ± Estradiol ESC (%)
ADP (Untreated) ADP (Estradiol) p value PAF (Untreated) PAF (Estradiol) p value
By Sex
Females (n=9) 35.6 (34.9−39.6) 34.7 (32.6−40.8) 0.30 37.0 (30.6−40.3) 37.6 (28.6−42.4) 0.82
Males (n=12) 35.8 (32.7−39.4) 34.9 (30.6−37.8) 0.42 34.0 (29.9−40.2) 33.5 (28.0−38.2) 0.13
By Sex and Age
Premenopausal females (n=4) 35.6 (31.4−38.8) 35.0 (30.8−38.6) 0.12 33.2 (28.2−37.0) 32.8 (22.8−38.5) 0.89
Postmenopausal females (n=5) 35.9 (34.9−40.0) 33.7 (32.6−42.4) 0.62 39.6 (35.2−41.6) 41.1 (33.4−44.7) 0.31
Young males (n=6) 35.0 (31.0−39.4) 34.0 (29.9−36.2) 0.44 31.2 (30.2−40.8) 31.7 (29.0−37.8) 0.16
Older males (n=6) 37.0 (30.8−40.1) 37.2 (28.8−39.2) 0.84 37.2 (23.2−40.0) 36.4 (22.5−38.6) 0.56

ADP=adenosine diphosphate, PAF=platelet activating factor, ESC=extent shape change