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Table 4 Number of lymph nodes by year for entire study cohort (N = 2322).

From: The impact of audit and feedback on nodal harvest in colorectal cancer

Year Median Interquartile range Mean
2001 6 3-11 8
2002 8 4-12 8.9
2003 8 5-14 9.9
2004 9 5-15 11.0
2005 9 5-16 11.5
All 8 4-13 9.9