Table A4. Findings in relation to variation in lung cancer diagnosis at stage I vs stages II–IV.

	Complete case analysis			Multiple imputation				Missing stage=stage III/IV
	OR	95% LCI	95% UCI	OR	95% LCI	95% UCI	FMI	OR	95% LCI	95% UCI
Women	Ref.	–	–	Ref.	–	–	–	Ref.	–	–
Men	1.14	1.03	1.25	1.13	1.03	1.25	0.170	1.15	1.05	1.27
15–49	1.33	0.93	1.90	1.23	0.86	1.75	0.197	1.31
50–54	1.00	0.74	1.35	0.96	0.71	1.30	0.157	0.95	0.93	1.84
55–59	1.26	0.99	1.61	1.22	0.96	1.55	0.119	1.23	0.71	1.27
60–64	0.96	0.79	1.18	0.95	0.78	1.16	0.150	0.95	0.97	1.56
65–69	Ref.	–	–	Ref.	–	–	–	–	0.78	1.15
70–74	0.82	0.68	0.97	0.80	0.68	0.96	0.109	0.82	0.69	0.98
75–79	0.74	0.62	0.88	0.72	0.60	0.86	0.171	0.75	0.64	0.89
80–84	0.73	0.61	0.88	0.73	0.61	0.87	0.16	0.78	0.65	0.93
⩾85	0.66	0.54	0.81	0.68	0.55	0.83	0.23	0.76	0.62	0.92
Most affluent	Ref.	–	–	Ref.	–	–	–	Ref.	–	–
2	0.94	0.81	1.09	0.97	0.84	1.12	0.138	0.95	0.82	1.10
3	0.97	0.83	1.12	1.01	0.87	1.17	0.184	0.97	0.84	1.12
4	0.98	0.84	1.14	1.04	0.89	1.21	0.209	0.99	0.86	1.15
Deprived	0.81	0.66	0.99	0.91	0.75	1.10	0.186	0.82	0.67	0.99
Adenocarcinoma	Ref.	–	–	Ref.	–	–	–	Ref.	–	–
Squamous cell carcinoma	0.91	0.79	1.05	0.89	0.77	1.02	0.116	0.83	0.72	0.95
Other non-small cell types	2.07	1.77	2.42	1.97	1.70	2.29	0.099	1.87	1.61	2.18
Small cell carcinoma	4.06	3.23	5.12	3.90	3.10	4.92	0.207	3.94	3.14	4.94
Large cell carcinoma	1.51	0.97	2.36	1.44	0.93	2.22	0.065	1.29	0.83	1.99
Carcinoid	0.02	0.00	0.18	0.02	0.00	0.15	0.764	1.53	0.87	2.70
Specified other	0.41	0.03	6.63	0.74	0.06	9.27	0.627	2.30	0.29	18.35
Unspecified other	1.94	1.67	2.24	1.85	1.59	2.15	0.289	2.07	1.80	2.37

Abbreviations: OR=odds ratio; Ref=reference; LCI=lower confidence interval;

UCI=upper confidence interval; FMI=fraction of missing information (for each respective variable category, it denotes the proportion of the estimation that used imputed missing information).