Table 4.

Comparison of adjusted acute length of stay after total hip arthroplasty

Comparison	Adjusted acute length of stay, d, difference (95% CI)	p value*
Overweight v. normal weight	0.07 (−0.09 to 0.23)	0.38
Obese I v. normal weight	0.03 (−0.14 to 0.20)	0.72
Obese II v. normal weight	0.42 (0.22 to 0.62)	< 0.001
Obese III v. normal weight	0.50 (0.26 to 0.73)	< 0.001

CI = confidence interval.

^*Adjusted for age, sex and presurgical risk factors using multiple linear regression.