Patient’s demographic data
| Parameters | Total n=24 691 | Males n=10 853 | Females n=13 838 |
| Age at examination (years old) | 79.4±4.3 (75–103) | 79.2±4.0 (75–101)* | 79.6±4.5 (75–103) |
| Age categories, n (%) | |||
| 75–79 | 14 932 (60.5) | 6757 (62.3)* | 8175 (59.1) |
| 80–84 | 6554 (26.5) | 2892 (26.6)* | 3662 (26.5) |
| 85≤ | 3205 (13.0) | 1204 (11.1)* | 2001 (14.5) |
| BMI (kg/m2) | 22.2±3.1 (11.6–54.2) | 22.4±2.9 (13–54.2)* | 22.0±3.2 (11.6–43) |
| BMI categories | |||
| Underweight (BMI <18.5) | 2684 (10.9) | 910 (8.4)* | 1774 (12.8) |
| Normal weight (18.5≤BMI < 25) | 17 997 (71.6) | 7980 (73.5)* | 9687 (70.0) |
| Overweight and obese (25≤BMI) | 4340 (17.6) | 1963 (18.1)* | 2377 (17.1) |
| CCI | 1.7±1.7 (0–11) | 1.9±1.8 (0–11)* | 1.5±1.5 (0–10) |
| CCI categories, n (%) | |||
| Low (0) | 4710 (19.1) | 1907 (17.6)* | 2803 (20.3) |
| Medium (1–2) | 12 982 (52.6) | 5226 (48.2)* | 7756 (56.1) |
| High (3–4) | 5331 (21.6) | 2772 (25.1)* | 2609 (18.9) |
| Very high (≥5) | 1668 (6.8) | 998 (9.2)* | 670 (4.8) |
| Smoking (yes), n (%) | 1891 (7.7) | 1586 (14.6)* | 305 (2.2) |
| Use of alcohol (yes), n (%) | 9444 (38.2) | 6447 (59.4)* | 2997 (21.7) |
| Osteoporosis, n (%) | 3969 (16.1) | 374 (3.4)* | 3595 (26.0) |
| Follow-up duration (year) | 6.9±1.6 (0.1–8.0) | 6.6±1.8 (0.1–8.0)* | 7.0±1.4 (0.1–8.0) |
Continuous values are expressed as mean±standard deviation (range).
*Significantly different between males and females (p<0.05).
BMI, body mass index; CCI, Charlson Comorbidity Index.