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Demographics

Demographics

Hip » Hip hemiarthroplasty » Demographics

TABLE Patient characteristics of all patients with a primary hip hemiarthroplasty by specialism in the Netherlands in 2021

	Orthopaedic surgeon	Trauma surgeon	Total
N	4,096 (71.1%)	1,668 (28.9%)	5,764
Mean age (years) (SD)	82.7 (8.9)	81.6 (7.9)	81.6 (8.7)
Age (years) (%)
<50	1	0	0
50-59	2	1	2
60-69	6	6	6
70-79	24	27	25
≥80	67	66	66
Gender (%)
Men	36	35	36
Women	64	65	64
ASA score (%)
I	2	2	2
II	26	27	27
III-IV	72	71	71
Type of hospital (%)
General	97	95	96
Private	1	0	0
UMC	3	5	3
Diagnosis (%)
Fracture (acute)	93	99	95
Osteoarthritis	4	0	3
Late post-traumatic	1	0	1
Tumour	1	0	0
Osteonecrosis	0	0	0
Dysplasia	0	0	0
Rheumatoid arthritis	0	0	0
Post-Perthes’ disease	0	0	0
Inflammatory arthritis	0	0	0
Other	1	0	1
Charnley-score (%)
A One hip joint affected	52	35	49
B1 Both hip joints affected	16	37	20
B2 Contralateral hip joint with a total hip prosthesis	24	15	22
C Multiple joints affected or chronic disease that affects quality of life	8	12	9
Mean Body Mass Index (kg/m²) (SD)	24.7 (4.3)	24.7 (4.0)	24.7 (4.2)
Body Mass Index (kg/m²) (%)
Underweight (≤18,5)	5	5	5
Normal weight (>18,5-25)	55	57	56
Overweight (>25-30)	30	29	30
Obesity (>30-40)	9	10	9
Morbid obesity (>40)	1	0	0
Smoking (%)
No	93	91	92
Yes	7	9	8

Please note: in 2021, 71 general hospitals, 7 UMCs and 6 private hospital performed primary hip hemiarthroplasties.
General: general hospital; UMC: university medical centre; Private: private hospital; SD: standard deviation.