Table 4 Mortality within 30 days of surgery by age and sex.

Resection type	Side	<70 years			⩾70 years
		N	Died	%	N	Died	%
Women
Lobectomy or sublobar resection	Right	415	3	0.7	214	5	2.3
	Left	366	2	0.5	199	2	1.0
Bilobectomy		98	4	4.1	48	3	6.3
Pneumonectomy	Right	95	10	10.5	23	4	17.4
	Left	158	6	3.8	31	2	6.5
Total		1132	25	2.2	515	16	3.1
Men
Lobectomy or sublobar resection	Right	524	11	2.1	381	26	6.8
	Left	461	6	1.3	381	18	4.7
Bilobectomy		145	10	6.9	92	11	12.0
Pneumonectomy	Right	251	18	7.2	118	25	21.2
	Left	278	12	4.3	117	15	12.8
Total		1659	57	3.4	1089	95	8.7