. 2015 Oct 12;108(1):djv284. doi: 10.1093/jnci/djv284

Table 2.

Number of LN examined by age and stage

Age Group, y	T stage T1			T stage T2			T stage T3			T stage T4
Age Group, y	N	Median LNE	25^th, 75^th percentile	N	Median LNE	25^th, 75^th percentile	N	Median LNE	25^th, 75^th percentile	N	Median LNE	25^th, 75^th percentile
All	8694	7	4, 13	13 557	9	5, 14	31 615	11	7, 17	2210	12	7, 18
20–39	197	12	8, 21	252	13	8, 21	682	16	10, 23	63	16	11, 28
40–49	677	9	5, 15	943	11	7, 17	2385	13	9, 19	194	15	10, 21
50–59	1801	8	5, 14	2363	10	6, 16	5427	12	8, 18	373	14	9, 20
60–69	2490	7	4, 12	3563	9	5, 14	7909	11	6, 16	518	11	6, 17
70–79	2484	6	3, 12	4126	8	5, 13	9300	10	6, 15	586	10	6, 16
80+	1045	7	4, 11	2310	8	5, 14	5912	10	6, 15	476	11	6, 17
Qreg P*			<.0001			<.0001			<.0001			<.0001

* Qreg = Trend estimated using quantile regression model, within each stage. LNE = no. lymph nodes examined.