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. 2015 Mar 2;2015:590148. doi: 10.1155/2015/590148

Table 3.

Overall survival by performance status, histology, and stage.

Patients (n) Median OS (months) 95% confidence interval
Lower Upper
All patients 245 9.4 7.8 12.0

Eastern Cooperative Oncology Group (ECOG) performance status 0, 1 154 13.7 12.1 15.1
2 51 4.0 2.3 6.7
3, 4 21 2.0 0.8 3.6

Histology Epithelial 154 12.5 9.3 14.4
Sarcomatoid 34 4.5 2.0 6.9
Mixed 27 8.1 4.5 12.1

Stage I 84 13.6 9.0 16.0
II 20 6.7 2.0 20.8
III 69 9.3 7.0 14.2
IV 63 7.4 4.0 9.9