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Table 3 Spearman rank correlations between serum hormone and plasma AEA levels in women within the 1st trimester of pregnancy with viable and non-viable pregnancies.

From: Modulation of the endocannabinoid system in viable and non-viable first trimester pregnancies by pregnancy-related hormones

  P4 β-hCG PAPP-A AEA
  r-values P-values n r-values P-values n r-values P-values n r-values P-values n
Viable Pregnancies
β-hCG 0.391 0.109 18          
PAPP-A 0.266 0.404 12 0.427 0.167 12       
AEA -0.247 0.323 18 -0.466 0.051 18 -0.004 0.990 15    
Gestation -0.086 0.735 18 0.386 0.114 18 0.156 0.579 15 -0.246 0.236 25
Non-viable Pregnancies
β-hCG 0.739 0.004 13          
PAPP-A 1.000 <0.0001 4 0.300 0.624 5       
AEA 0.401 0.175 13 0.052 0.865 13 0.697 0.025 10    
Gestation 0.490 0.089 13 0.750 0.003 13 -0.532 0.114 10 -0.475 0.035 20
  1. Progesterone (P4) was measured in ng/mL, β-hCG was measured in mIU/mL, PAPP-A was measured in mg/L, AEA was measured in nM and gestation was measured in weeks. The Spearman co-efficients (r) were calculated using GraphPad Prism software and significant correlations are in bold. The number of samples (n) is given for each correlation.