Table 9. Correlation between yolk sac diameter (mm) and all parameters using Pearson's correlation coefficient in the study group.
Parameters The Yolk sac size
R p-value
Age (years) 0.023 0.800
Parity -0.055 0.549
Body mass index 0.328 0.012*
Systolic Blood Pressure (mmHg) 0.111 0.227
Diastolic Blood Pressure (mmHg) 0.061 0.505
Gestational age (weeks) -0.305 0.025*
Gestational sac (mm) -0.054 0.561
Crown rump length (mm) -0.111 0.230

r-Pearson Correlation Coefficient
p-value>0.05 NS; *p-value <0.05 S; **p-value <0.001 HS