Table 2. Obs, SIRsa, and 95% CI, by calendar period of hip operation.

	Calendar period of hip operation
	1990–1994				1995–1999				2000–2004				2005–2009				1990–2009
			95% CI				95% CI				95% CI				95% CI				95% CI
Cancer	Obs	SIR	LCI	UCI	Obs	SIR	LCI	UCI	Obs	SIR	LCI	UCI	Obs	SIR	LCI	UCI	Obs	SIR	LCI	UCI
Mouth, pharynx	37	0.82	0.58	1.14	44	0.86	0.63	1.16	36	0.93	0.65	1.29	21	0.84	0.52	1.29	138	0.86	0.73	1.02
Oesophagus	90	0.89	0.71	1.09	89	0.84	0.68	1.04	56	0.78	0.59	1.01	42	1.00	0.72	1.35	277	0.86	0.76	0.97
Stomach	107	0.86	0.71	1.04	108	0.92	0.76	1.11	58	0.80	0.61	1.03	31	0.78	0.53	1.10	304	0.86	0.77	0.96
Lung	475	0.80	0.73	0.88	506	0.82	0.75	0.89	298	0.69	0.62	0.78	218	0.85	0.74	0.97	1497	0.79	0.75	0.83
Bone	3	1.45	0.27	4.30	3	1.50	0.28	4.45	1	0.71	0.00	4.08	0	0.00	—	—	7	1.09	0.43	2.26
Connective tissue	14	1.34	0.73	2.26	12	1.08	0.55	1.89	7	0.90	0.36	1.86	4	0.87	0.23	2.24	37	1.09	0.77	1.50
Melanoma of skin	70	1.15	0.90	1.46	64	0.89	0.69	1.14	62	1.09	0.84	1.40	54	1.42	1.07	1.86	250	1.10	0.97	1.25
Basal cell carcinoma of skin	637	1.02	0.94	1.10	734	1.03	0.95	1.10	551	1.03	0.95	1.12	380	1.12	1.01	1.24	2302	1.04	1.00	1.08
Corpus uteri	48	0.98	0.73	1.31	55	0.97	0.73	1.26	47	1.06	0.78	1.41	30	1.02	0.68	1.45	180	1.00	0.86	1.16
Prostate	317	1.11	0.99	1.23	331	1.05	0.94	1.16	240	1.07	0.94	1.22	145	1.06	0.90	1.25	1033	1.07	1.01	1.14
Bladderb	181	0.89	0.77	1.03	184	0.85	0.73	0.99	124	0.84	0.70	1.00	78	0.89	0.70	1.11	567	0.87	0.80	0.94
Kidney	78	1.10	0.87	1.37	82	1.05	0.83	1.30	65	1.12	0.86	1.42	31	0.84	0.57	1.19	256	1.05	0.92	1.18
Hodgkin's disease	7	1.28	0.51	2.66	11	1.91	0.95	3.43	6	1.32	0.47	2.88	2	0.62	0.06	2.29	26	1.37	0.89	2.01
NHL and other lymphohaematopoietic	103	1.11	0.91	1.35	102	1.02	0.83	1.24	72	1.01	0.79	1.27	52	1.18	0.88	1.55	329	1.07	0.96	1.19
Multiple myeloma and other immunoproliferative	61	1.24	0.95	1.60	75	1.43	1.13	1.80	38	1.04	0.73	1.42	22	1.00	0.63	1.52	196	1.22	1.06	1.41
Leukaemia	84	1.09	0.87	1.35	78	0.98	0.78	1.23	42	0.81	0.59	1.10	22	0.77	0.48	1.17	226	0.96	0.83	1.09
All cancers combined	4090	1.01	0.98	1.04	4613	1.07	1.04	1.10	3158	1.04	1.00	1.08	2085	1.13	1.09	1.18	13946	1.05	1.04	1.07

Abbreviations: CI=confidence interval; LCI=lower CI; NHL=non-Hodgkin's lymphoma; Obs=observed numbers of cancers; SIMD=Scottish Index of Multiple Deprivation; SIR=standardised incidence ratio; UCI=upper CI.

^aIndirectly standardised for age, sex, calendar period of follow-up, and deprivation (SIMD 2004).

^bBecause of changes in classification and coding of bladder tumours over time, all bladder tumours (invasive, in situ, and uncertain behaviour) were included. Significant findings are shown in bold.