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Table 2 Patients’ and stones’ characteristics

From: A clinical observational study of effectiveness of a solid coupling medium in extracorporeal shock wave lithotripsy

Parameters Group C Group P1 Group P2 F value P value
Number of patients 103 100 97   
Age (years) 52.5 ± 12.4 51.4 ± 11.1 50.4 ± 10.9 0.845 0.431
Stone size (mm) 8.14 ± 3.46 7.94 ± 2.84 8.14 ± 3.12 0.134 0.875
Stone side (No./%)      
 Left 59 (57.3%) 60 (60.0%) 56 (57.7%)   
 Right 44 (42.7%) 40 (40.0%) 41 (42.3%)
Stone location(No./%)     
 Kidney 47 (45.6%) 50 (50.0%) 47 (48.5%)   
 Upper ureter 25 (24.3%) 28 (28.0%) 24 (24.7%)
 Middle ureter 4 (3.9%) 0 (0.0%) 3 (3.1%)
 Lower ureter 27 (26.2%) 22 (22.0%) 23 (23.7%)
  1. Comparison performed by ANOVA test