Impact evaluation of biomedical waste segregation among junior residents of a South Indian medical college: a quasi experimental study

Ranganath T. Sobagaiah, Karuna Siddappa Patange, Vishwanatha .


Background: Biomedical waste is any waste generated during the diagnosis, treatment or immunization of human beings or animals. The quantity of solid waste generated in Bangalore hospitals is from ½ to 4 kg per bed per day. But segregation is done in only 30%. Health care workers have an important responsibility to segregate the biomedical waste and dispose them. Hence this study was undertaken with the objective of assessing the impact of intervention on Biomedical waste segregation knowledge among junior doctors.  

Methods: The study design employed is a quasi experimental study with control and intervention design. The junior doctors were selected randomly. After written informed consent the participants were divided as two group of intervention and control group with 74 in each group. Data of pre-test was collected using self-administered and validated questionnaire. After a week of pre-test, training using WHO modules 3 on training of biomedical waste segregation based on IHWM was done only for the intervention group. After a period of 3 months post test was conducted for both the intervention and the control group using a pre tested self-administered questionnaire with questions very similar to the pre-test.

Results: The difference is found to be with t-test value of 1.434 and df of 37 with significant value 0.160 (>0.05) for the control group. The difference is found to be with t-test value of 3.241 and df of 35 with significant value 0.003 (<0.05) for the intervention group.

Conclusions: The knowledge of biomedical waste management was found to increase after an intervention.


Biomedical waste segregation, Quasi-experimental, Junior doctors

Full Text:



Park JE. Park’s textbook of preventive and social medicine. 25th edition. M/s Banarasidas Bhanot publishers; 2019:301-33.

Kishore J, Agarwal R, Kohli C, Sharma PK, Kamat N, Tyagi S. Status of biomedical waste management in nursing homes of Delhi, India. J Clin Diagn Res. 2014;8(3):56-8.

Madhukumar S. Study about awareness and practices about health care wastes management among hospital staff in a medical college hospital, Bangalore study about awareness and practices about health care wastes management among hospital staff in a medical college hospital, Bangalore. Int J Basic Med Sci. 2012;3(1):7-11.

Nataraj G, Baveja S, Kuyare S, Poojary A, Mehta P, Kshirsagar N, et al. Report: medical students for monitoring biomedical waste segregation practices - Why and how? Experience from a medical college. Waste Manag Res. 2008;26(3):288-90.

Gupta S, Boojh R. Report: biomedical waste management practices at Balrampur hospital, Lucknow, India. Waste Manag Res. 2006;24(6):584-91.

Radha R. Assessment of Existing Knowledge, Attitude, and Practices Regarding Biomedical Waste Management among the Health Care Workers in a Tertiary Care Rural Hospital. Int J Heal Sci Res. 2012;2(7):14-9.

Kumar R, Somrongthong R, Shaikh BT. Effectiveness of intensive healthcare waste management training model among health professionals at teaching hospitals of Pakistan: A quasi-experimental study. BMC Health Serv Res. 2015;15(1):1-7.

WHO. Training modules in health-care waste management. Available at water_sanitation_health/facilities/waste/training_modules_waste_management/en. Accessed on 9 November 2019.

Sachan R, Patel ML, Nischal A. Assessment of the knowledge, attitude and Practices regarding Biomedical Waste Management amongst the Medical and Paramedical Staff in Tertiary Health Care Centre. Int J Sci Res Public. 2012;2(7):1-6.

Verma L, Mani S, Sinha N. Biomedical waste management in nursing homes and smaller hospitals in Delhi. Waste Management. 2008;28(12):2723-34.

Pandey A, Ahuja S. Bio-Medical Waste Managment in a Tertiary Care Hospital: An Overview. J Clin Diagnostic Res. 2016;10(11):1-3.

Kumar R, Somrongthong R, Ahmed J. Impact of waste management training intervention on knowledge, attitude and practices of teaching hospital workers in Pakistan. Pakistan J Med Sci. 2016;32(3):705-10.

Elnour AM, Moussa MMR, Borgy EMD, Fadelella NEE, Mahmoud AH. Impacts of health education on knowledge and practice of hospital staff with regard to Healthcare waste management at White Nile State main hospitals, Sudan. Int J Health Sci. 2015;9(3):315-31.