Table 2.
Mean age (in years) of patients undergoing knee replacement for osteoarthritis by gender and body mass index category
| Gender | BMI category | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Underweight (< 18.50 kg/m2) | Normal weight (18.50–24.99 kg/m2) | Overweight (25.00–29.99 kg/m2) | Obese class 1 (30.00–34.99 kg/m2) | Obese class 2 (35.00–39.99 kg/m2) | Obese class 3 (≥ 40.00 kg/m2) | |||||||
| Mean | SD | Mean | SD | Mean | SD | Mean | SD | Mean | SD | Mean | SD | |
| Female | 72 | 11 | 71.3 | 9.3 | 70.2 | 8.9 | 68.5 | 8.8 | 66.5 | 8.5 | 64.1 | 8.3 |
| Male | 69.6 | 14 | 71 | 9.6 | 68.9 | 8.9 | 67 | 8.4 | 65.4 | 8.1 | 63.7 | 7.7 |
Abbreviations: BMI, body mass index; SD, standard deviation.