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Table 3 Comparison of top 4 sonographers to all others

From: Factors affecting perception of the normal pediatric appendix on sonography

 

Top 4 sonographers, N = 50

All others, N = 77

p value

US result appendix normal, n (%)

44 (88.0)

16 (20.8)

< 0.001

Appendix not visualized, n (%)

6 (12.0)

61 (79.2)

 

Years of experience, median (25th, 75th percentile)

15 (9, 15)

8 (3, 14)

< 0.001

  1. The p value is based on the Pearson Chi-square test and the Mann–Whitney U