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Table 2 Comparison of public and private hospitals in Addis Ababa City for total and hazardous waste generated per day using Mann–Whitney T test, 2011

From: Assessment of the health care waste generation rates and its management system in hospitals of Addis Ababa, Ethiopia, 2011

Hospital type Total HCW HW
Mean rank Sum of ranks Mean rank Sum of ranks
Public 5 15 4 12
Private 2 6 3 9
P-value 0.05 0.51