Variable | Intratumoral lymphatic vessel invasion | Univariate | Multivariate | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
− | + | % | RR (95% CI) | Significance | RR (95% CI) | Significance | |||||
Age | |||||||||||
≤60 y | 15 | 9 | 37.5 | 0.69 (0.26–1.81) | NS | 0.32 (0.08–1.23) | NS | ||||
>60 y | 51 | 21 | 29.2 | ||||||||
Sex | |||||||||||
Male | 28 | 21 | 42.9 | 3.17 (1.26–7.95) | P = 0.014 | 2.40 (0.86–6.71) | NS | ||||
Female | 38 | 9 | 19.1 | ||||||||
Tumor size | |||||||||||
<3 cm | 42 | 13 | 26.3 | 2.29 (0.95–5.51) | NS | 1.39 (0.49–3.98) | NS | ||||
≥3 cm | 24 | 17 | 41.5 | ||||||||
Histology | |||||||||||
Adenocarcinoma | 52 | 24 | 31.6 | 1.08 (0.37–3.14) | NS | 1.79 (0.52–6.13) | NS | ||||
Nonadenocarcinoma | 14 | 6 | 30.0 | ||||||||
18F-FDG uptake | |||||||||||
Low-moderate | 25 | 3 | 10.7 | 5.49 (1.51–20.0) | P = 0.010 | 7.43 (1.51–36.5) | P = 0.014 | ||||
High | 41 | 27 | 39.7 |
− = negative; + = positive; RR = relative risk; CI = confidence interval; NS = not statistically significant.