Table 2.

Lymph Node Yield with Increasing Age

Age Group, y	N	Mean LNY	95% Confidence Interval		% Meeting 12 LNY
<=40	2,266	18.7	18.2	19.3	61.9%
41–45	2,284	15.6	15.2	16.1	52.4%
46–50	4,038	14.3	14.0	14.6	48.0%
51–55	6,439	13.7	13.5	14.0	45.6%
56–60	8,072	13.0	12.8	13.2	41.9%
61–65	10,578	12.5	12.4	12.7	40.0%
66–70	13,631	12.2	12.1	12.4	38.6%
71–75	16,247	12.0	11.9	12.2	37.5%
76–80	16,335	12.1	12.0	12.2	38.0%
81–85	12,599	11.9	11.8	12.1	37.5%
86+	9,278	11.4	11.2	11.6	35.2%
Total	101,767	12.6	12.5	12.6	39.9%

LNY – Lymph Node Yield