Table 4:

Tumour characteristics, surgical resection and recurrence-free survival stratified by the proposed scoring system

Variable, n (%)	Score ≥3 (n = 12)	Score <3 (n = 47)	P-value
Presence of symptoms	9 (75)	23 (49)	0.193
Pleural effusion	5 (42)	1 (2)	0.001
Sessile morphology	9 (75)	12 (26)	0.002
Visceral pleura/intrapulmonary origin	2 (17)	41 (87)	<0.001
Size ≥10 cm	9 (75)	6 (13)	<0.001
Presence of necrosis	4 (33)	2 (4)	0.013
Hypercellularity	8 (67)	6 (13)	<0.001
Mitosis ≥4/10 HPFs	3 (25)	1 (2)	0.024
Type of surgery			0.064
Local excision only	1 (8)	4 (9)
Sublobar resection	6 (50)	38 (81)
Lobectomy/bilobectomy	2 (17)	3 (6)
Chest wall resection	3 (25)	2 (4)
Recurrence			<0.0001
3 years	20%	0%
5 years	20%	0%
10 years	77%	0%