Table 4. Multivariate analysis for overall survival.

	Total (n = 54)		Epithelioid (n = 34)		Non-epithelioid (n = 20)
	Hazard ratio (95% CI)	P	Hazard ratio (95% CI)	P	Hazard ratio (95% CI)	P
SUVmax* (> cutoff vs. ≤ cutoff#)	3.77 (1.58–9.01)	0.003	5.65 (1.45–21.98)	0.012	2.83 (0.79–10.1)	0.111
Histologic subtype (Epithelioid vs. non-epithelioid#)	0.25 (0.10–0.64)	0.003
Stage (I–II vs. III–IV#)	0.20 (0.08–0.52)	0.001	0.15 (0.03–0.68)	0.014	0.31 (0.06–1.61)	0.163
Chemotherapy (Pemetrexed/platinum vs. None#)	0.34 (0.14–0.81)	0.015	0.29 (0.06–1.47)	0.134	0.28 (0.08–0.97)	0.044

*SUVmax cutoff; Total = 10.1, Epithelioid = 8.5, Non-epithelioid = 10.3

^#Reference