Table 2. Patient characteristics for sex, age, ASA grade, and fixation type by BMI category.
| <18.5 kg/m2 | 18.5–24.99 kg/m2 | 25–29.99 kg/m2 | 30–34.99 kg/m2 | 35–39.99 kg/m2 | ≥40 kg/m2 | ||
|---|---|---|---|---|---|---|---|
| n (%) | 1,338 (0.27) | 49,860 (10.10) | 168,947 (34.22) | 159,056 (32.22) | 80,166 (16.24) | 34,343 (6.96) | |
| Sex n (%) | Female | 1,025 (76.61) | 30,666 (61.50) | 85,150 (50.40) | 87,863 (55.24) | 52,759 (65.81) | 25,698 (74.83) |
| Male | 313 (23.39) | 19,194 (38.50) | 83,797 (49.60) | 71,193 (44.76) | 27,407 (34.19) | 8,645 (25.17) | |
| Age median (IQR) | Female | 74 (66, 80) | 74 (67, 80) | 73 (66, 78) | 70 (64, 76) | 67 (61, 73) | 64 (58, 70) |
| Male | 70 (63, 78) | 74 (67, 80) | 71 (65, 77) | 69 (63, 74) | 66 (61, 72) | 64 (59, 69) | |
| ASA grade n (%) | P1 | 109 (8.15) | 6,734 (13.51) | 21,105 (12.49) | 14,719 (9.25) | 4,443 (5.54) | 1,024 (2.98) |
| P2 | 904 (67.56) | 35,812 (71.83) | 125,847 (74.49) | 120,151 (75.54) | 59,200 (73.85) | 20,831 (60.66) | |
| P3 | 317 (23.69) | 7,145 (14.33) | 21,618 (12.80) | 23,806 (14.97) | 16,265 (20.29) | 12,191 (35.50) | |
| P4–P5 | 8 (0.60) | 169 (0.34) | 377 (0.22) | 380 (0.24) | 258 (0.32) | 297 (0.86) | |
| Fixation type n (%) | Cemented | 1,306 (97.61) | 47,889 (96.05) | 161,854 (95.80) | 152,224 (95.70) | 76,958 (96.00) | 33,072 (96.30) |
| Uncemented | 22 (1.64) | 1,640 (3.29) | 6,115 (3.62) | 5,806 (3.65) | 2,752 (3.43) | 1,045 (3.04) | |
| Hybrid | 10 (0.75) | 331 (0.66) | 978 (0.58) | 1,026 (0.65) | 456 (0.57) | 226 (0.66) | |
ASA, American Society of Anaesthesiologists; BMI, body mass index.