[Table/Fig-2]:

Mean values of placental thickness in 3rd trimester 27- 40 weeks (90 subjects)& in total samples (211)

Gestation age in weeks	Sample subjects(n)	Mean with standard deviation
27	2	30.3 ± 3.81
28	3	33.61 ± 0.24
29	3	30.03 ± 0.62
30	3	36.06 ± 0.51
31	5	35.12 ± 0.31
32	8	34.13 ± 0.81
33	18	34.75 ± 0.51
34	14	35.55 ± 0.78
35	15	34.99 ± 0.65
36	4	37.6 ± 2.04
37	3	39.33 ± 6.13
38	3	40.06 ± 4.58
39	6	39.64 ± 1.29
40	3	40.2 ± 1.38
All trimester	211	28.49 ± 1.03