JPSIM Journal of Pakistan Society of Internal Medicine J Pak Soc Intern Med 2709-8729 2710-0804 Pakistan Society of Internal Medicine 10.70302/jpsim.v5i4.2470 jpsim.v5i4.2470 Original Research Correlation between Heart Rate Variability and Intelligence Quotient in Medical Students of Pakistan: An Exploratory Study Lodhi Hifza Noor noor.musa.burki@gmail.com * Baig Athar Abdullah MehruNisa Mehmood Faheem Younas Waleed Omar Naureen Rashid Latif Khan University Medical College Lahore The Central Park Medical College Lahore, House Officer at Arif Memorial Hospital Lahore *Correspondence: Hifza Noor Lodhi (noor.musa.burki@gmail.com) 09 12 2024 2024 5 4 711 715 25 03 2024 02 11 2024 Copyright © 2024 The Author(s) 2024 The Author(s) https://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Objective

To determine a correlation between autonomic systemic variability through measurement of time Domain

HRV and intelligence quotient (high and average IQ) of medical college students.

 Methodology

It was a cross sectional study conducted at The Central Park Medical College Lahore. A total of 34 MBBS

students participated. Modified Wechsler Adult Intelligence Scale (WAIS) was used to calculate the IQ of students.

Assessment of autonomic function was done by determination of HRV through variables of time-domain using Lab Chart

version 8.0 with HRV module installed. It utilized Data Acquisition System with application of ECG two limb leads.

Mann-Whitney U test used to compare median values. Spearman's correlation was used to find any correlation.

 Results

In our study population RMSDD, SDRR and pRR50% were compared with reference values and it was observed

that our study population HRV Indices were much higher than the reference values, but the difference did not reach

significance. No correlation was found between HRV of average and high IQ medical students.

 Conclusion

Time domain of Heart rate variability was much higher in the medical students as compared to the reference

values, but it did not reach statistical significance when compared between average and high IQ students.

 Keywords Heart rate variability Intelligence Quotient Ethics Statement

Ethics committee: Institutional Review Board, Central Park Medical College, Lahore, Pakistan. Approval number: CPMC/IRB-NO/1392, dated 14-03-2023.

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