Table 5.

The evaluations of prognostic factors other than the presence of pneumothorax by the log-rank test

		Progression-free survival (PFS)		Overall survival (OS)
Variants	n	Hazard ratio (95 % CI)	p-value	Hazard ratio (95 % CI)	p-value
Age ≥ 60 yo	19	0.64 (0.33–1.25)	0.19	0.88 (0.40–1.92)	0.74
Male gender	30	1.01 (0.55–1.85)	0.99	1.43 (0.69–2.96)	0.34
Synovial sarcoma	9	0.57 (0.24–1.35)	0.17	0.58 (0.20–1.66)	0.31
Hypertension+	10	0.44 (0.17–1.13)	0.09	1.15 (0.43–3.03)	0.79
Smoking history+	20	0.96 (0.51–1.80)	0.89	1.41 (0.67–2.94)	0.36
lung lesion+	41	1.18 (0.59–2.35)	0.64	2.02 (0.77–5.30)	0.15
Number of lung lesions ≥2	35	0.96 (0.52–1.78)	0.90	1.06 (0.497–2.279)	0.87
Maximum diameter of lung lesions ≥ 30 mm	21	1.37 (0.75–2.51)	0.30	1.40 (0.685–2.878)	0.36