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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 2020

	Orthopaedic surgeon	Trauma surgeon	Total
N	4,174 (67.4%)	2,017 (32.6%)	6,191
Mean age (years) (SD)	82.1 (8.2)	82.6 (7.9)	82.2 (8.1)
Age (years) (%)
<50	0	0	0
50-59	1	1	1
60-69	5	5	5
70-79	26	24	25
≥80	68	70	69
Gender (%)
Men	36	34	36
Women	64	66	64
ASA score (%)
I	1	1	1
II	27	27	27
III-IV	72	72	72
Type of hospital (%)
General	97	97	97
UMC	3	3	3
Diagnosis (%)
Fracture (acute)	96	99	97
Osteoarthritis	1	0	1
Late post-traumatic	1	1	1
Tumour	2	0	1
Osteonecrosis	0	0	0
Dysplasia	0	0	0
Rheumatoid arthritis	0	0	0
Post-Perthes’ disease	0	0	0
Inflammatory arthritis	0	0	0
Charnley-score (%)
A One hip joint affected	55	39	52
B1 Both hip joints affected	14	34	18
B2 Contralateral hip joint with a total hip prosthesis	21	12	19
C Multiple joints affected or chronic disease that affects quality of life	10	15	11
Mean Body Mass Index (kg/m²) (SD)	24.6 (4.1)	24.4 (4.0)	24.5 (4.1)
Body Mass Index (kg/m²) (%)
Underweight (≤18,5)	5	5	5
Normal weight (>18,5-25)	54	57	55
Overweight (>25-30)	32	31	32
Obesity (>30-40)	9	7	8
Morbid obesity (>40)	0	0	0
Smoking (%)
No	94	95	94
Yes	6	5	6

Please note: In 2020, 73 general hospitals, 7 UMCs and 1 private hospital performed primary hip hemiarthroplasties.
General: general hospital; UMC: university medical centre; Private: private hospital; SD: standard deviation.