. 2015 Oct 1;2015:510450. doi: 10.1155/2015/510450

Table 2.

Results of the Mann-Whitney U test to compare the groups' values of left heart parameters.

Parameters	Group	Mean	SD	Mean rank	Sum of ranks	Mann-Whitney U	Sig. (2-tailed)
Height (cm)	Case	127.405	18.712	32.797	1213.5	510.5	0.574
Height (cm)	Control	128.7	29.2	35.483	1064.5	510.5	0.574

Ventricular end-diastolic dimension (mm)	Case	46.584	7.713	42.568	1575	238	0
Ventricular end-diastolic dimension (mm)	Control	39.993	4.098	23.433	703	238	0

Ventricular end-systolic dimension (mm)	Case	30.181	7.451	38.716	1432.5	380.5	0.028
Ventricular end-systolic dimension (mm)	Control	26.517	3.23	28.183	845.5	380.5	0.028

Ejection fraction (%)	Case	62.514	13.715	35.986	1331.5	481.5	0.353
Ejection fraction (%)	Control	63.533	5.507	31.55	946.5	481.5	0.353

Myocardial performance index	Case	0.549	0.181	45.892	1698	115	0
Myocardial performance index	Control	0.325	0.051	19.333	580	115	0

Isovolumic contraction time (m/s)	Case	0.03	0.01	43.865	1623	190	0
Isovolumic contraction time (m/s)	Control	0.017	0.007	21.833	655	190	0

Isovolumic relaxation time (m/s)	Case	0.107	0.026	43.23	1599.5	213.5	0
Isovolumic relaxation time (m/s)	Control	0.094	0.012	22.617	678.5	213.5	0

Acceleration time (m/s)	Case	0.054	0.011	33.703	1247	544	0.888
Acceleration time (m/s)	Control	0.054	0.008	34.367	1031	544	0.888

Deceleration time (m/s)	Case	0.123	0.014	35.581	1316.5	496.5	0.456
Deceleration time (m/s)	Control	0.121	0.015	32.05	961.5	496.5	0.456

E/A velocity ratio	Case	1.657	0.757	28.757	1064	361	0.014
E/A velocity ratio	Control	1.842	0.461	40.467	1214	361	0.014

Left atrium/aorta ratio	Control	1.252	0.294	33.662	1245.5	542.5	0.875
Left atrium/aorta ratio	Case	1.203	0.15	34.417	1032.5	542.5	0.875

Preejection period (m/s)	Control	0.128	0.156	44.703	1654	159	0
Preejection period (m/s)	Case	0.094	0.101	20.8	624	159	0

Preejection period/ejection time (m/s)	Control	0.357	0.058	44.743	1655.5	157.5	0
Preejection period/ejection time (m/s)	Case	0.294	0.039	20.75	622.5	157.5	0

Ejection time (m/s)	Control	0.25	0.026	27.865	1031	328	0.004
Ejection time (m/s)	Control	0.263	0.02	41.567	1247	328	0.004

Interventricular septal dimension in diastole (mm)	Case	6.319	1.294	40.243	1489	324	0.003
Interventricular septal dimension in diastole (mm)	Control	5.43	0.887	26.3	789	324	0.003

Ventricular posterior wall dimension in diastole (mm)	Case	4.211	1.222	41.149	1522.5	290.5	0.001
Ventricular posterior wall dimension in diastole (mm)	Control	3.343	0.507	25.183	755.5	290.5	0.001

Interventricular septal dimension in systole (mm)	Case	9.276	1.761	39.365	1456.5	356.5	0.012
Interventricular septal dimension in systole (mm)	Control	8.283	1.08	27.383	821.5	356.5	0.012

Interventricular septal dimension in systole (mm)	Case	4.251	1.246	41.662	1541.5	271.5	0
Interventricular septal dimension in systole (mm)	Control	3.363	0.524	24.55	736.5	271.5	0