Prediction of CD4+ Cells Counts in HIV/AIDS Patients based on Sets and Probability Theories.

Abstract:

BACKGROUND:Previous studies have developed methodologies for predicting the number of CD4+ cells from the total leukocyte and lymphocytes count based on mathematical methodologies, obtaining percentages of effectiveness prediction higher than 90% with a value of less than 5000 leukocytes. OBJECTIVE:To improve the methodology probabilities prediction in 5000-9000 leukocytes ranges. METHOD:from sets A, B, C and D defined in a previous study, and based on CD4+ prediction established on the total number of leukocytes and lymphocytes, induction was performed using data from 10 patients with HIV, redefining the sets A and C that describe the lymphocytes behavior relative to leukocytes. Subsequently, we evaluated with previous research prediction probabilities parameters from a sample of 100 patients, calculating the belonging probability to each sample and organized in predetermined ranges leukocytes, of each of the sets defined, their unions and intersections. Then the same procedure was performed with the new sets and the probability values obtained with the refined method were compared with respect to previously defined, by measures of sensitivity (SENS) and Negative Predictive Value (NPV) for each range. RESULTS:probabilities with values greater than 0.83 were found in five of the nine ranges inside the new sets. The probability for the set A∪C increased from 0.06 to 0.18 which means increases between 0.06 and 0.09 for the intersection (A∪C) ∩ (B∪D), making evident the prediction improvement with new sets defined. CONCLUSION:The results show that the new defined sets achieved a higher percentage of effectiveness to predict the CD4+ value cells, which represents a useful tool that can be proposed as a substitute for clinical values obtained by the flow cytometry.

journal_name

Curr HIV Res

journal_title

Current HIV research

authors

Rodriguez J,Prieto S,Correa C,Melo M,Dominguez D,Olarte N,Suárez D,Aragón L,Torres F,Santacruz F

doi

10.2174/1570162X17666190306125819

subject

Has Abstract

pub_date

2018-01-01 00:00:00

pages

416-424

issue

6

eissn

1570-162X

issn

1873-4251

pii

CHR-EPUB-97093

journal_volume

16

pub_type

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