Surgical Site Infections: Incidence and Risk Factors in A Tertiary Care Hospital, Western India


  • Sachin M Patel GMERS Medical College, Sola, Ahmedabad
  • Mitesh H Patel GMERS Medical College, Sola, Ahmedabad
  • Sangeeta D Patel B.J Medical College, Ahmedabad
  • Sumeeta T Soni B.J Medical College, Ahmedabad
  • Dipa M Kinariwala B.J Medical College, Ahmedabad
  • Mahendra M Vegad B.J Medical College, Ahmedabad


Surgical site infections (SSI), Risk factors, NNIS risk index


Purpose: The present study was aimed at obtaining the incidence of Surgical Site Infections (SSI) and determining various risks the factors influencing the Surgical Site Infections rate with special reference to the NNIS risk index at tertiary care hospital, Gujarat. Western India.

Methods: In this study, 200 patients who underwent various surgeries were included and various risk factors were studied. Swabs were obtained from wounds and were processed without delay using standard microbiological methods.

Results: Overall SSI rate was 16% (32/200).The most common organism isolated was Escherichia coli (35.7%, 10/28). Increase in pre-operative hospital stay, ASA (American Society of Anesthesiology) score > 2, increase in surgical wound class, emergency surgeries, longer duration of surgery were associated with increased SSI rates. NNIS risk index was calculated for all patients and it was found that SSI rate increases with increase in NNIS risk index.

Conclusion: The risk indices, like the NNIS risk index provide information about potential risk factors for development of SSI. Surveillance of surgical site infections with feedback of appropriate data to surgeons would be desirable to reduce SSI rates.


Lilani SP, Jangale N, Chowdhary A, Daver GB. Surgical site infection in clean and clean-contaminated cases. Indian J Medical Microbiology 2005; 23(4):249-252.

Anvikar A.R., Deshmukh A.B., Karyakarte R.P., Damle A.S., Patwardhan N.S., Malik A.K., et al. A one year prospective study of 3280 surgical wounds. Indian J Medical Microbiology 1999; 17(3):129-132.

Edward S. Wong. Surgical site infections. In: C. Glen Mayhall, editors. Hospital Epidemiology and Infection control. 2nd ed. Philadelphia: Lippincott Williams & Wilkins; 1999. Pp189-210.

Flavia F.E., Carlos E.F.S., Tania C.M.C., Mariangela C. Applicability of the National Nosocomial Infections Surveillance System Risk Index for the Prediction of Surgical Site Infections. A review. The Brazilian J of Infectious Diseases 2007; 11(1):134-141.

Robert Haley. Nosocomial infection in surgical patients: Developing valid measures of intrinsic patient risk. The Americal J of Medicine. 1991; 91(supp-3B):145-151.

David H.Culver, Teresa Horan. Surgical wound infection rates by wound class, operative procedure & patient risk index. Tr. American J of Medicine 1991; 91(supp 3B): 152-157.

Monica Cheesebrough. Microbiological tests. In: Monica C, editor. District Laboratory Practice in Tropical Countries. Part 2. Low price edition. Cambridge University Press, UK 2000; pp80-85.

Seyd Mansour R., Mohammad I., Ahmad S.K., Ali J. Abdominal surgical site infections: Incidence and risk factors at an Iranian teaching hospital. BMC Surgery 2005; 5(2):1-5.

Desa L.A., Sathe MJ. Factors influencing wound infection. Journal of Postgraduate Medicine 1984; 30(4):231-236.

National Academy of Science/ National Research Council. Post operative wound infections: Influence of ultraviolet irradiation of the operating room & of various other factor .Annal of Surgery. 1964; 160(supp2):1-132.




How to Cite

Patel SM, Patel MH, Patel SD, Soni ST, Kinariwala DM, Vegad MM. Surgical Site Infections: Incidence and Risk Factors in A Tertiary Care Hospital, Western India. Natl J Community Med [Internet]. 2012 Jun. 30 [cited 2023 Sep. 30];3(02):193-6. Available from:



Original Research Articles