Table 2.

Results of the statistical analyses*.

H Score	Group 1	Group 2	Group 3	Group 4	Group 5	Group 6	Group 7	Group 8
Median	70,0000	180,0000	230,0000	80,0000	60,0000	210,0000	250,0000	280,0000
Minimum	20,00	150,00	190,00	,00	20,00	180,00	230,00	280,00
Maximum	100,00	200,00	240,00	120,00	90,00	260,00	280,00	290,00
Mean	66,7241	176,0000	215,8824	69,6552	61,7241	213,0000	254,3333	284,0000
Std. dev.	18,67430	17,88854	14,60258	31,45095	15,59967	27,10064	12,22866	5,47723
	(χ2 = 157.073; p < 0.001).
Group 1	—	<0.001	<0.001	1.00	0.015	0.001	<0.001	<0.001
Group 2	<0.001	—	<0.001	0.19	0.001	0.001	<0.001	<0.001
Group 3	<0.001	<0.001	—	<0.001	<0.001	0.47	<0.001	<0.001
Group 4	1.00	0.19	<0.001	—	0.019	<0.001	<0.001	<0.001
Group 5	0.015	0.001	<0.001	0.019	—	<0.001	<0.001	<0.001
Group 6	<0.001	<0.001	0.47	<0.001	<0.001	—	<0.001	<0.001
Group 7	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001	—	0.002
Group 8	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001	0.002	—

^*Group 1 (first trimester, ≤13 weeks of gestation), group 2 (second trimester, 14–27 weeks), group 3 (term placenta, 28–40 weeks), group 4 (non-molar hydropic abortion), group 5 (molar pregnancy), group 6 (acute placental inflammation), group 7 (intrauterine growth retardation, IUGR), and group 8 (preeclampsia).