Table 2.

Studies comparing associations with overall survival

Study	LNR	NPN	TNE
Pawlik et al.24	Yes	–	No
House et al.16	Yes	Yes	No
Riediger et al.25	Yes	Yes	No
Massucco et al.22	Yes	Yes	No
Showalter et al.28	Yes	Yes	Yes
Bhatti et al.14	Yes	–	No
Murakami et al.23	No	Yes	No
La Torre et al.18	Yes	–	No
Sanjay et al.27	Yes	–	–
Robinson et al.26	Yes	–	–
Ausborn et al.13	Yes	–	–
John et al.17	Yes	Yes	No
Yamamoto et al.30	Yes	Yes	No
Strobel et al.29	No	Yes	Yes
La Torre et al.19	Yes	No	Yes
Liu et al.20	Yes	Yes	No
Malleo et al.21	Yes	Yes	No
Zhan et al.31	Yes	–	No
Fischer et al.15	Yes	Yes	–

LNR, lymph node ratio; NPN, number of positive nodes; TNE, total nodes examined; Yes = associated with overall survival; No = not associated with overall survival