Table 1 Characteristics of study participants
Variables | (N) Mean (SD) Median (Q1–Q3)a |
|---|---|
25(OH)D level continuous, ng/mL | (2063) 21.13 (8.83) 20.00 (15.00–25.83) |
TC, mmol/L | (1566) 4.56 (1.00) 4.53 (3.89–5.16) |
TG, mmol/L | (1566) 1.36 (0.88) 1.13 (0.82–1.65) |
LDL, mmol/L | (1566) 2.71 (0.79) 2.66 (2.16–3.21) |
HDL, mmol/L | (1566) 1.47 (0.33) 1.43 (1.23–1.66) |
APO-A, g/L | (1566) 1.37 (0.27) 1.34 (1.18–1.53) |
APO-B, g/L | (1566) 0.89 (0.23) 0.88 (0.73–1.04) |
LPa, mg/L | (1566) 186.17 (166.01) 131.00 (73.25–243.00) |
HCY, umol/L | (1567) 12.97 (6.37) 11.36 (9.27–15.04) |
Ca, mmol/L | (2029) 2.26 (0.17) 2.26 (2.17–2.35) |
β-CTX, ng/mL | (2045) 0.42 (0.30) 0.34 (0.19–0.59) |
P1NP, ug/L | (2044) 50.44 (34.64) 43.00 (29.00–64.00) |
Sex, N (%) | |
 Male | 333 (16.14%) |
 Female | 1730 (83.86%) |
Age (years) | (2063) 68.51 (8.66) 68.00 (63.00–74.00) |
Age (years), N (%) | |
 > 50, ≤ 70 | 1256 (60.88%) |
 > 70 | 807 (39.12%) |
BMI (kg/m2), N (%) | |
 ≤ 18.5 | 99 (4.80%) |
 > 18.5, ≤ 23.9 | 1255 (60.83%) |
 > 23.9, ≤ 28 | 556 (26.95%) |
 > 28, ≤ 35 | 147 (7.13%) |
 > 35 | 6 (0.29%) |
Season of blood collection, N (%) | |
 Spring (March, April and May) | 503 (24.38%) |
 Summer (June, July and August) | 509 (24.67%) |
 Autumn (September, October and November) | 608 (29.47%) |
 Winter (December, January and February) | 443 (21.47%) |
Year of blood collection, N (%) | |
 2015 | 21 (1.02%) |
 2016 | 32 (1.55%) |
 2017 | 48 (2.33%) |
 2018 | 128 (6.20%) |
 2019 | 458 (22.20%) |
 2020 | 578 (28.02%) |
 2021 | 705 (34.17%) |
 2022 | 93 (4.51%) |
Hypertension, N (%) | |
 No | 1420 (68.83%) |
 Yes | 643 (31.17%) |
Diabetes, N (%) | |
 No | 1772 (85.89%) |
 Yes | 291 (14.11%) |
Main diagnosis, N (%) | |
 OP without fractures | 1391 (67.43%) |
 OPF | 672 (32.57%) |