Body mass indices in patients with disabling hip osteoarthritis

Table 1 Characteristics of the sample of 1021 patients with osteoarthritis of the hip joint who were hospitalized for total hip replacement surgery or related procedures between January 1 and October 31, 2000

Characteristic	Subgroup	Value
Age (years)	Whole group	66.09 ± 12.70
	Males	62.83 ± 12.55^**
	Females	67.38 ± 13.00
Gender (no.)	Males	435
	Females	586
Side affected (no.)	Left	451
	Right	507
Procedure (no.)	Unilateral hip replacement	781
	Bilateral hip replacement	55
	Reimplantation of prosthesis	16
	Removal of prosthesis	27
	Revision of prior prosthetic surgery	134
	Debridement	3
	Relocation of prosthesis	4
	Second removal	1
BMI (kg/m²)	Whole group	27.63 ± 5.78
	Left side affected	28.02 ± 6.25^*
	Right side affected	27.28 ± 5.28
	Males	28.77 ± 5.16^**
	Females	26.70 ± 5.93
	Healthy group	26.98 ± 4.48^***
	Comorbid group	27.75 ± 5.92
	Those having reimplantations	31.21 ± 5.65
Health status (%)	Free of other disease	10
	With comorbid disease(s)	90

Values are shown as mean ± 1 SD unless otherwise indicated. BMI = body mass index. ^*P = 0.049, ^**P = 0.000, ^***P = 0.007.

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