Univariate analysis | ||||||
---|---|---|---|---|---|---|
Variants | Thymoma | Thymic carcinoma | ||||
 | n | MST [95% CI] | p-value | n | MST [95% CI] | p-value |
Age (y) | Â | Â | 0.0018* | Â | Â | 0.36 |
 <70 | 91 | 71.3 [54.4-88.1] | 50 | 24.1 [13.5-43.6] | ||
 ≥70 | 28 | 30.1 [13.8-59.9] | 18 | 24.6 [11.9-36.4] | ||
Gender | Â | Â | 0.29 | Â | Â | 0.076 |
 Male | 52 | 235.2 [136.8-NR] | 38 | 29.7 [13.5-40.2] | ||
 Female | 67 | 171.8 [110.1- NR] | 30 | 56.4 [23.7-73.0] | ||
Masaoka-Koga Stage | Â | Â | 0.0012* | Â | Â | 0.18 |
 I | 52 | NR [136.8- NR] | 0 | - | ||
 II | 31 | NR [NR - NR] | 6 | 78.9 [65.8-92.0] | ||
 III | 12 | 171.8 [4.7- NR] | 10 | 56.4 [8.8-99.6] | ||
 IVa | 18 | 110.1 [33.8-235.2] | 16 | 27.3 [17.2-43.9] | ||
 IVb | 6 | 83.8 [0.6- NR] | 36 | 21.6 [11.3-36.4] | ||
Immunological abnormalities | Â | Â | 0.26 | Â | Â | 0.59 |
 Yes | 26 | NR [171.8- NR] | 2 | 71.2 [69.5-73.0] | ||
 No | 93 | 156.6 [126.3- NR] | 66 | 30.4 [23.6-43.9] | ||
Secondary Malignancies | Â | Â | 0.42 | Â | Â | 0.54 |
 Yes | 12 | 235.2 [74.4-235.2] | 13 | 36.8 [5.8-65.8] | ||
 No | 107 | 171.8 [136.8- NR] | 55 | 30.4 [21.6-56.4] | ||
WHO classification [thymoma] | Â | Â | 0.68 | Â | Â | Â |
 A | 5 | 79.2 [-] | ||||
 AB | 33 | - [91.6- NR] | ||||
 B1 | 19 | - [126.3- NR] | ||||
 B2 | 39 | 171.8 [110.1- NR] | ||||
 B3 | 15 | - [37.2- NR] | ||||
 Other | 8 | 235.2 [4.4-235.2] | ||||
 [thymic carcinoma] |  |  |  |  |  | 0.95 |
 High grade | 52 | 36.8 [23.7-65.8] | ||||
 Low grade | 16 | 24.7 [8.5-66.6] | ||||
Multivariate analysis | ||||||
Variants | Thymoma | Thymic carcinoma | ||||
 | HR | 95% CI | P-value | HR | 95% CI | p-value |
Staging | IVa/ I: 4.62 | [1.78-13.37] | 0.016* | II/IVa: 0.27 | [0.43-0.99] | 0.048* |
 | IVa/II: 6.40 | [2.03-28.17] | 0.001* | |||
 | IVb/II: 5.56 | [1.02-30.20] | 0.047* | |||
Immunological abnormalities | 2.0 | [0.73-6.35] | 0.18 | Â | Â | Â |
Secondary Malignancies | 4.4 | [0.63-51.9] | 0.26 | 1.36 | [0.57-3.28] | 0.44 |
WHO Classification | Â | Â | Â | Â | Â | Â |
(A/B1/B2/B3/AB/other) | none | none | none | - | - | - |
(high grade vs. low grade) | - | - | - | 0.88 | [0.46-1.57] | 0.70 |
(thymic ca. vs. thymoma) | 6.7 | 4.1-11.1 | < .0001* | - | - | - |