Standardized incidence rates of total hip replacement for primary hip osteoarthritis in the 5 Nordic countries: similarities and differences

Figures & data

Table 1. Crude incidence rate per year per 100,000 (overall population) of primary THR for primary OA

	Denmark	Finland	Iceland	Norway	Sweden
1996	68	71	80	76	86
1997	70	72	88	84	83
1998	74	71	76	85	92
1999	78	72	82	87	92
2000	80	77	70	93	99

Figure 1. Average incidence rate of primary THR for primary hip OA per 100,000 per year (1996–2000), for different age groups in Denmark, Finland, Iceland, Norway and Sweden. A: average for men and women; B: women; C: men.

Table 2.  Average incidence rate per year per 100,000, for 5-year period 1996–2000, of primary THR for primary OA; all implant types. Values within parentheses represent 95% confidence intervals

	Denmark	Finland	Iceland	Norway	Sweden
Women and men
Age 50–89	219 (208–229)	217 (213–222)	309 (286–331)	275 (261–289)	252 (240–265)
Age 65–79	370 (346–394)	367 (352–382)	513 (474–552)	472 (441–503)	407 (386–428)
Age 75–79	415 (405–426)	369 (344–393)	559 (517–601)	552 (525–580)	467 (451–483)
All ages	74 (69–78)	73 (71–75)	79 (73–85)	85 (80–91)	90 (85–96)
Standardized^a (all ages)	61 (57–65)	61 (59–62)	84 (77–91)	69 (65–74)	68 (64–72)
Women
Age 50–89	230 (218–242)	231 (227–236)	346 (320–371)	360 (341–379)	271 (255–287)
Age 65–79	386 (358–413)	392 (373–411)	557 (526–588)	610 (568–653)	429 (400–459)
Age 75–79	432 (411–453)	396 (356–436)	563 (499–626)	685 (644–725)	505 (482–527)
All ages	82 (77–87)	83 (82–85)	93 (86–100)	118 (111–125)	102 (95–109)
Standardized^a(all ages)	62 (57–66)	60 (60–61)	92 (84–100)	88 (82–94)	71 (66–75)
Men
Age 50–89	205 (194–216)	200 (192–208)	269 (239–299)	177 (167–187)	231 (222–241)
Age 65–79	350 (326–375)	331 (319–344)	463 (405–520)	303 (281–324)	380 (367–394)
Age 75–79	391 (3801–402)	318 (294–343)	555 (478–631)	364 (342–387)	416 (404–427)
All ages	65 (61–70)	62 (59–65)	66 (59–73)	52 (48–55)	79 (74–83)
Standardized^a (all ages)	60 (56–64)	60 (58–63)	75 (66–83)	48 (44–51)	65 (62–69)

^a Age-standardized annual incidence per 100,000 WHO European standard population.

Table 3.  Ratios between women and men in average incidence of primary THR for primary OA per 100,000 per year (all implants); 1996–2000 and age group 50–89

	Women/men THR ratio	95% CI
Denmark	1.12	1.07–1.18
Finland	1.15	1.11–1.20
Iceland	1.29	1.18–1.42
Norway	2.03	1.98–2.09
Sweden	1.17	1.14–1.20

Table 4. Average incidence rate per year per 100,000, for the 5-year period 1996–2000, of primary THR for primary OA using cemented, uncemented and hybrid implants

	Age group	Cemented	Un-cemented	Hybrid
Women and men
Denmark	50–89	131	25.6	61.7
	65–79	254	19.7	95.6
	all ages	43.2	9.6	20.9
Finland	50–89	110	71.2	35.9
	65–79	224	76.3	67.1
	all ages	35.9	24.9	11.9
Iceland	50–89	309	0	0
	65–79	513	0	0
	all ages	79.1	0	0
Norway	50–89	239	19.7	16.4
	65–79	438	11.5	22.5
	all ages	73.0	6.9	5.2
Sweden	50–89	234	4.9	13.1
	65–79	397	1.1	7.5
	all ages	82.4	2.5	5.5
Women
Denmark	50 –89	141	23.0	65.8
	65–79	264	16.9	105
	all ages	49.3	9.1	23.5
Finland	50–89	130	62.9	38.3
	65–79	250	72.4	69.9
	all ages	45.9	23.7	13.7
Iceland	50–89	346	0	0
	65–79	557	0	0
	all ages	79.1	0	0
Norway	50–89	318	21.9	19.8
	65–79	569	12.8	26.0
	all ages	104	7.9	6.6
Sweden	50–89	254	4.1	11.9
	65–79	422	0.7	6.6
	all ages	94.0	2.2	5.4
Men
Denmark	50–89	120	28.4	56.9
	65–79
	243	23.1	84.4
	all ages	37.0	10.1	18.3
Finland	50–89	85.5	81.5	33.3
	65–79	186	82.3	62.8
	all ages	25.5	26.3	10.0
Iceland	50–89	269	0	0
	65–79	463	0	0
	all ages	65.8	0	0
Norway	50–89	147	17.5	12.8
	65–79	275	9.6	17.7
	all ages	41.8	5.8	3.9
Sweden	50–89	211	5.7	14.6
	65–79	368	1.4	8.5
	all ages	70.3	2.6	5.8