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Table 3 Comparison of visitors, health care waste generation rates and categories of HCW using Kruskal-Wallis test among the surveyed hospitals, 2011

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

Name of hospital Mean Ranks
Patient flow Total HCW Non-HW HW
Amanuel 32.86 36.57 38.86 13.79
Zewditu 28.43 33.14 30.14 38.00
Gandhi memo. 28.86 19.00 17.43 20.07
Bethezata gen. 22.43 19.29 19.43 20.43
Hayat gen. 9.29 15.14 15.43 11.86
St. Yared gen. 7.14 5.86 7.71 24.86
Chi-square 27.325 30.650 29.011 20.431
P-valve 0.0001 0.0001 0.0001 0.001
  1. According to Table 4, the Spearman’s rank correlation coefficient (rs) showed that there was a positive linear relationship between number of patients and quantities of HCW generation rates (p < 0.05). A positive linear relationship was also observed between total amount of HCW generated and number of hospital beds with (rs=0.943, p < 0.05).