[Table/Fig-3]:

t-Test Results for Three Trimesters for Correlation Coefficient

Trimester	Sample size	Correlation between placental thickness & gestational age	P value (1 tailed test)
First Trimester	32	0.609	0.000<0.001
Second Trimester	89	0.812	0.000<0.001
Third Trimester	90	0.814	0.000<0.001