A prospective study on cancer risk after total hip replacements for 41,402 patients linked to the Cancer registry of Norway

Table 1 Number of hips, cases of cancer, males and follow-up time

	Number of hips	Number of cancers	Percent males	Person years	Median follow-up	Hips after 10 years	Cancer after 10 years
Total
Cemented	32,534	5060	32	361,924	12.2	16,653	1417
Uncemented	6679	743	41	65,634	9.8	2907	262
Hybrid	2189	364	36	26,392	13.3	1391	110
All fixations	41,402	6167	34	453,950	11.9	20,951	1789
< 55 years
Cemented	1138	89	41	11,602	9.3	478	34
Uncemented	1967	139	46	22,174	11.9	1106	69
Hybrid	269	18	45	2705	10.6	144	6
All fixations	3374	246	44	36,481	10.8	1728	109
55–64 years
Cemented	8480	1119	34	92,572	11.2	4167	391
Uncemented	3219	418	40	31,528	9.9	1398	151
Hybrid	801	172	36	9260	12.4	490	38
All fixations	12,500	1664	36	133,360	11.1	6055	580
65–74 years
Cemented	22,916	3852	31	257,750	12.8	12,008	992
Uncemented	1493	186	38	11,932	7.2	403	42
Hybrid	1119	219	34	14,427	15.0	757	66
All fixations	25,528	4257	31	284,109	12.6	13,168	1100
Men
Cemented	10,423	2037	100	112,322	12.2	5058	537
Uncemented	2748	343	100	26,690	9.8	1201	129
Hybrid	783	162	100	8993	12.8	472	44
All fixations	13,954	2542	100	148,005	11.9	6731	710
Women
Cemented	22,111	3023	0	249,601	12.2	11,595	880
Uncemented	3931	400	0	38,944	9.8	1706	133
Hybrid	1406	202	0	17,399	13.7	919	65
All fixations	27,448	3625	0	305,945	12.0	14,220	1079

ISSN: 1471-2474