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Open Access e-Journal Cardiometry No.16 May 2020

We should mention that Cardiometry is a fine diagnostics tool to assess heart life expectancy. Our experts, using Cardiocode in “red zones” in intensive care units, have confirmed effectiveness of noninvasive measuring of the hemodynamics data on the cardiovascular system performance in critical patients with different severity degrees. The medical staff involved had a possibility not only to monitor the state in each critical patient, but also to predict and control the progression of a disease. We are going to publish some results of this pilot study in our next issues.

We should mention that Cardiometry is a fine diagnostics tool to assess heart life expectancy. Our experts, using Cardiocode in “red zones” in intensive care units, have confirmed effectiveness of noninvasive measuring of the hemodynamics data on the cardiovascular system performance in critical patients with different severity degrees. The medical staff involved had a possibility not only to monitor the state in each critical patient, but also to predict and control the progression of a disease. We are going to publish some results of this pilot study in our next issues.

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Table 2

Eigenvalues and percentage of an interpretable dispersion of factors after Varimax rotation

Factor: 1 2 3 4 5 6 7 8

Eigenvalue 1,02 1,009 0,9981 1,015 1,021 0,9956 0,9721 0,9687

Dispersion (%) 12,75 12,61 12,48 12,69 12,77 12,45 12,15 12,11

Cumulative % 12,75 25,36 37,84 59,53 63,29 75,74 87,89 100

Table 3

Eigenvalues and percentage of an interpretable dispersion of

factors after Varimax rotation at the stage of the confirmatory

factor analysis

Factor: 1 2 3 4

Eigenvalue 1,02 1,009 0,9981 1,015

Dispersion (%) 12,75 12,61 12,48 12,69

Cumulative % 12,75 25,36 37,84 59,53

Table 4

Factor structure of the correlation relationships after Varimax

rotation at the stage of the confirmatory factor analysis

Ego-states

Number of factor

1 2 3 4

1 -0,806

2 -0,7626

3 -0,775

4 -0,756

5 0,6129 -0,5775

6 0,7088

7 0,7995

8 0,95

ric closeness to each individual factor, has been completed.

In addition to the orthogonal rotation method

(Varimax rotation), applied have been the Quartimax

rotation, Equimax rotation and Oblique rotation

methods.

The tables given below illustrate the results of various

variants for optimizing the factor structure at the

stage of the confirmatory factor analysis. The indicated

data are obtained by processing the matrix of the

Spearman rank correlation coefficients. Tables 4, 6,

and 8, according to the recommendations in paper [4],

give values of factor loading not lower than 0.5 only.

Tables 3 and 4 show the parameters of the factor

structure after using the orthogonal rotation method

(Varimax rotation), with which we sought to minimize

the number of variables with high loadings on

each factor.

Tables 5 and 6 herein present the data obtained

after applying the Quartimax rotation method, with

which we tried to minimize the number of factors, required

for a meaningful interpretation of each of the

variables used.

Tables 7 and 8 given herein indicate the results

obtained from the Equimax rotation method, which

was used to simultaneously minimize the number of

Table 5

Eigenvalues and percentage of an interpretable dispersion

of factors after Quartimax rotation at the stage of the

confirmatory factor analysis

Factor: 1 2 3 4

Eigenvalue 1,85 1, 935 1,324 0,8993

Dispersion (%) 23,13 24,19 16,55 11,24

Cumulative % 23,13 47,32 63,86 75,1

Table 6

Factor structure of the correlation relationships after

Quartimax rotation at the stage of the confirmatory factor

analysis

Ego-states

Number of factor

1 2 3 4

1 -0,8259

2 -0,7325

3 -0,7874

4 -0,7305

5 0,6031 -0,5752

6 0,7308

7 0,8187

8 0,9271

variables with large factor loadings and the number of

factors interpreting them.

We have also completed the Oblique rotation procedure,

with which we have sought to minimize the

number of factors without providing their complete

independence (orthogonality). It has turned out that

the factor structure of the correlation relationships according

to the Oblique rotation method exactly corresponds

to that structure which has been obtained

upon the Varimax rotation application.

As shown in Tables 3, 5 and 7, the hypothesis for an

applicability of employing 4 factors for describing the

optimal structure of the latent relations, provided that

the analyzed objects with eigenvalues greater than 1

are referred to as the main components of the scattering

ellipse axes, is confirmed for the Equimax rotation

method only. Therefore, at the final stage of the confirmatory

factor analysis, all the above main components

calculation procedures and all the above types of their

rotation have been performed for models containing

only 3 factors. The results from the final stage of the

confirmatory factor analysis are presented in Tables

9-14 herein.

As it is the case with all the previous stages, in order

to identify the correlation relationships, we have

58 | Cardiometry | Issue 16. May 2020

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