Table 2.

Overall survival among patients with ≥1 LN removed (n = 1,143)

Clinical characteristic	No.	No. of variables	p	HR	95 % CI
Age at diagnosis (median)	1,143	0	<0.0001	2.96	2.18–4.01
≤59 years
>59 years
Sex		0	0.68	1.06	0.8–1.41
Female	561 (49 %)
Male	582 (51 %)
Race		4	0.97	1.01	0.64–1.59
Black	104 (9 %)
White	1,016 (89 %)
Other	19 (2 %)
Location		0	0.042	0.66	0.44–0.99
Jejunum	126 (11 %)
Ileum	1,017 (89 %)
Tumor size (cm)a		0	<0.0001	1.73	1.44–2.09
Mean	2.3
Median	2
Range	0.3–17.0
No. of LNs removed (median) (>8 vs. ≤8)	1,035	108	0.05	0.73	0.53–1.00
LN metastasis		15	0.05	1.5	1.00–2.24
No	206 (18 %)
Yes	922 (82 %)
Distant metastasis		0	<0.0001	2.98	2.25–3.96
No	788 (69 %)
Yes	355 (31 %)
LN ratio (median) (>0.29 vs. ≤0.29)	1,034	109	0.0019	1.65	1.20–2.27

LN lymph node, HR hazard ratio, CI confidence interval

^aContinuous variable