Table 4 Univariate and multivairate analysis for occult lymph node metastasis
Multivariate analysis | ||||||||
|---|---|---|---|---|---|---|---|---|
Univariate analysis | SUVmax model | MTV model | TLG model | |||||
Variable | OR (95 % CI) | P | OR (95 % CI) | P | OR (95 % CI) | P | OR (95 % CI) | P |
Tumor size (1 cm increase) | 2.433 (1.089-5.436) | 0.030 | 1.942 (0.817-4.617) | 0.133 | 1.416 (0.570-3.518) | 0.453 | 1.696 (0.705-4.080) | 0.238 |
Adenocarcinoma (vs. nonadenocarcinoma) | 1.611 (0.597-4.346) | 0.346 | ||||||
SUVmax (1 unit increase) | 1.159 (1.050-1.279) | 0.003 | 1.120 (1.003-1.250) | 0.044 | ||||
MTV (1 cm3 increase) | 1.131 (1.055-1.212) | <0.001 | 1.117 (1.031-1.211) | 0.007 | ||||
TLG (1 unit increase) | 1.022 (1.008-1.037) | 0.002 | 1.018 (1.002-1.035) | 0.031 | ||||
Poor differentiation (vs. others) | 2.215 (0.699-7.014) | 0.176 | 1.473 (0.404-5.370) | 0.557 | 0.985 (0.226 ~ 4.295) | 0.984 | 1.202 (0.290 ~ 4.978) | 0.799 |
Pleural dimpling (with vs. without) | 1.489 (0.615-3.607) | 0.378 | ||||||
No. of dissected LN (1 unit increase) | 1.021 (0.988-1.055) | 0.223 | ||||||
C-index | 0.718 (0.616-0.820) | 0.763 (0.660-0.856) | 0.726 (0.618-0.834) | |||||