Table 1.

Patient demographics

Number of patients	26,401
Women	56.7%
Age at surgery, mean (range)	65.8 (11–96) yrs
Weight at surgery, mean (range)	75.9 (30–178) kg
BMI at surgery
Underweight (< 19 kg/m2)	1.1%
Normal (19–24.9 kg/m2)	31.2%
Overweight (25–29.9 kg/m2)	45.2%
Obese (≥ 30 kg/m2)	22.5%
Indication for hip replacement	Primary osteoarthritis 72.8%
	Femoral neck fracture sequelae 12.7%
	Sequelae of development dysplasia 7.5%
	Idiopathic femoral head necrosis 5.4%
	Rheumatic Arthritis 0.7%
	Other 0.9%
Follow-up, mean (range)	5.2 (0.1–15.6) yrs