Prevalence and Bacterial Profile of Urinary Tract Infections: A Cross-Sectional Study from a Tertiary Care Hospital in Pakistan

Authors

  • Muzammil Ahmad Shah Saidu Group of Teaching Hospital, Swat, Pakistan
  • Muhammad Ayub Khan Saidu Group of Teaching Hospital, Swat, Pakistan
  • Salman Khan Saidu Group of Teaching Hospital, Swat, Pakistan
  • Rashid Ali Khan Saidu Group of Teaching Hospital, Swat, Pakistan
  • Faryal Masaud Hayatabad Medical Complex, Peshawar, Pakistan
  • Umar Rahman Khyber Teaching Hospital, Peshawar, Pakistan
  • Zeeshan Khan Saidu Group of Teaching Hospital, Swat, Pakistan

DOI:

https://doi.org/10.52206/jsmc.2025.15.4.910

Abstract

Background: Urinary tract infections (UTIs) are among the most common bacterial infections worldwide and pose a significant public health challenge. Globally, around 6 million patients attend outpatient clinics and approximately 300,000 are hospitalized annually due to UTIs.

Objective: The objective of this study was to determine the prevalence and distribution of bacterial pathogens associated with urinary tract infections in patients presenting to a tertiary care hospital in Pakistan.

Methodology: This descriptive cross-sectional study was conducted in the Department of Medicine, Saidu Group of Teaching Hospital, Swat, between February 1, 2022, and January 31, 2023. A total of 1000 patients aged 15–70 years with clinical symptoms of UTIs were included, while those with recent urological procedures, recurrent sexually transmitted infections, recent antibiotic use, or age above 70 years were excluded. Mid-stream urine samples were collected, cultured, and analyzed for bacterial growth and antibiotic susceptibility.

Results: Out of 1000 patients, 725 (72.5%) were female and 275 (27.5%) were male, with a mean age of 35 ± 4.5 years. Bacterial growth was detected in 831 (83.1%) samples, while 169 (16.9%) showed no growth. Escherichia coli was the predominant organism, isolated from 704 (70.4%) samples, followed by Klebsiella species (4.0%), Proteus species (1.9%), Pseudomonas aeruginosa (1.8%), Enterococcus species (1.7%), Citrobacter species (1.7%), and Staphylococcus species (1.6%). A statistically significant association was found between bacterial isolates and patient gender (p=0.0423).

Conclusion: The findings reveal Escherichia coli as the most prevalent uropathogen, emphasizing its critical role in UTIs across age groups and genders. Timely identification and targeted treatment may improve patient outcomes and help reduce long-term complications.

Keywords: Antimicrobial susceptibility, Bacterial prevalence, Escherichia coli, Urinary tract infection, Uropathogens.

References

Behzadi P, Urbán E, Matuz M, Benk? R, Gajdács M. The role of gram-negative bacteria in urinary tract infections: current concepts and therapeutic options. Adv Microbiol Infect Dis Public Health. 2021;15:35–69. http://doi.org/10.1007/5584_2020_566

Idrees MM, Rasool MF, Imran I, Khalid A, Saeed A, Ahmad T, et al. A cross-sectional study to evaluate antimicrobial susceptibility of uropathogens from South Punjab, Pakistan. Infect Drug Resist. 2022;15:1845–1855. http://doi.org/10.2147/IDR.S356489

Zhan ZS, Shi J, Zheng ZS, Zhu XX, Chen J, Zhou XY, et al. Epidemiological insights into seasonal, sex-specific and age-related distribution of bacterial pathogens in urinary tract infections. Exp Ther Med. 2024;27(4):140. http://doi.org/10.3892/etm.2024.12428

Kumwenda P, Semu P. Characterization of urinary tract infections among females at a tertiary hospital in Malawi: a retrospective study. BMC Infect Dis. 2025;25(1):466. http://doi.org/10.1186/s12879-025-10842-5

Smita MS. Bacterial profile of urinary tract infections and antibiotic resistance pattern in a tertiary care hospital. Online J Health Allied Sci. 2020;18(4). Available from: https://www.ojhas.org/issue72/2019-4-6.html

Tullus K, Shaikh N. Urinary tract infections in children. Lancet. 2020;395(10237):1659–1668. http://doi.org/10.1016/S0140-6736(20)30676-0

Yu Z, Wang Y, Chen Y, Huang M, Wang Y, Shen Z, et al. Antimicrobial resistance of bacterial pathogens isolated from canine urinary tract infections. Vet Microbiol. 2020;241:108540. http://doi.org/10.1016/j.vetmic.2019.108540

Muhammad A, Khan SN, Ali N, Rehman MU, Ali I. Prevalence and antibiotic susceptibility pattern of uropathogens in outpatients at a tertiary care hospital. New Microbes New Infect. 2020;36:100716. http://doi.org/10.1016/j.nmni.2020.100716

Klein RD, Hultgren SJ. Urinary tract infections: microbial pathogenesis, host–pathogen interactions and new treatment strategies. Nat Rev Microbiol. 2020;18(4):211–226. http://doi.org/10.1038/s41579-020-0324-0

Öztürk R, Murt A. Epidemiology of urological infections: a global burden. World J Urol. 2020;38:2669–2679. http://doi.org/10.1007/s00345-019-03071-4

Esther OD, Timothy OO, Oluwatosin OB, Samsudeen A. Antimicrobial susceptibility pattern of bacteria isolated from urinary tract infection in Federal Teaching Hospital Ido Ekiti. Int J Biol Pharm Sci Arch. 2021;2(2):52–59. http://doi.org/10.53771/ijbpsa.2021.2.2.0092

Rasool MS, Siddiqui F, Ajaz M, Rasool SA. Prevalence and antibiotic resistance profiles of Gram-negative bacilli associated with urinary tract infections (UTIs) in Karachi, Pakistan. Pak J Pharm Sci. 2019;32(6). Available from: http://142.54.178.187:9060/xmlui/handle/123456789/14498

Kaur R, Kaur R. Symptoms, risk factors, diagnosis and treatment of urinary tract infections. Postgrad Med J. 2021;97(1154):803–812. http://doi.org/10.1136/postgradmedj-2020-139090

Li X, Fan H, Zi H, Hu H, Li B, Huang J, et al. Global and regional burden of bacterial antimicrobial resistance in urinary tract infections in 2019. J Clin Med. 2022;11(10):2817. http://doi.org/10.3390/jcm11102817

Bhargava K, Nath G, Bhargava A, Kumari R, Aseri GK, Jain N, et al. Bacterial profile and antibiotic susceptibility pattern of uropathogens causing urinary tract infection in eastern Northern India. Front Microbiol. 2022;13:965053. http://doi.org/10.3389/fmicb.2022.965053

Zagaglia C, Ammendolia MG, Maurizi L, Nicoletti M, Longhi C. Urinary tract infections caused by uropathogenic Escherichia coli strains—new strategies for an old pathogen. Microorganisms. 2022;10(7):1425. http://doi.org/10.3390/microorganisms10071425

Mohapatra S, Panigrahy R, Tak V, JV S, KC S, Chaudhuri S, et al. Prevalence and resistance pattern of uropathogens from community settings of different regions: an experience from India. Access Microbiol. 2022;4(2):000321. http://doi.org/10.1099/acmi.0.000321

Zagaglia C, Ammendolia MG, Maurizi L, Nicoletti M, Longhi C. Urinary tract infections caused by uropathogenic Escherichia coli strains—new strategies for an old pathogen. Microorganisms. 2022;10(7):1425. http://doi.org/10.3390/microorganisms10071425

Denoble A, Reid HW, Krischak M, Rosett H, Sachdeva S, Weaver K, et al. Bad bugs: antibiotic-resistant bacteriuria in pregnancy and risk of pyelonephritis. Am J Obstet Gynecol MFM. 2022;4(2):100540. http://doi.org/10.1016/j.ajogmf.2021.100540

Shormanov IS, Solovyov AS, Tyuzikov IA, Kulikov SV. Anatomical, physiological and pathophysiological features of the lower urinary tract in gender and age aspects. Urology Reports (St Petersburg). 2021;11(3):241–256. http://doi.org/10.17816/uroved70710

Ronald A. The etiology of urinary tract infection: traditional and emerging pathogens. Am J Med. 2002;113(1):14–19. http://doi.org/10.1016/S0002-9343(02)01055-0

Tefera M, Shimelis D, Tessema S. Predominant isolates of uropathogens and their antimicrobial sensitivity in febrile children admitted to emergency unit, Tikur Anbessa Hospital. Ethiop Med J. 2017;56(1).

Amjad A, Mirza IA, Abbasi SA, Farwa U, Sattar A, Qureshi ZA, et al. Spectrum and antimicrobial susceptibility pattern of pathogens causing urinary tract infection—experience in a tertiary care setting. Infect Dis J Pak. 2021;20(2).

Sabir S, Anjum AA, Ijaz T, Ali MA, Nawaz M. Isolation and antibiotic susceptibility of E. coli from urinary tract infections in a tertiary care hospital. Pak J Med Sci. 2014;30(2):389. Available from: https://pmc.ncbi.nlm.nih.gov/articles/PMC3999016/

Shahzad KA, Ullah F, Muhammad K, Khatoon F, Qazi MH, Ahmed I. Multiple drug resistance patterns in urinary tract infection patients in Peshawar, Khyber Pakhtunkhwa (KPK), Pakistan. J Infect Mol Biol. 2013;1:67–70.

Additional Files

Published

04-11-2025

How to Cite

1.
Shah MA, Khan MA, Khan S, Khan RA, Masaud F, Rahman U, Khan Z. Prevalence and Bacterial Profile of Urinary Tract Infections: A Cross-Sectional Study from a Tertiary Care Hospital in Pakistan. J Saidu Med Coll [Internet]. 2025 Nov. 4 [cited 2026 Nov. 10];15(4):522-7. Available from: http://jsmc.pk/index.php/jsmc/article/view/910