Table 3 Characteristics of the participants among participants who maintained sufficient vitamin D levels and participants who did not maintain sufficient vitamin D levels at 60-month follow-up
Vitamin D non-maintainer (n = 61) | Vitamin D maintainer (n = 79) | |
|---|---|---|
Age, years | 68.3 (6.5) | 68.2 (6.6) |
Female, n (%) | 29 (48%) | 35 (44%) |
BMI, kg/m2 | 29.6 (6.7) | 27.8 (13.4) |
Serum 25(OH)D levels, nmol/l | 51.1 (18.8) | 69.4 (14.4) |
Serum hs-CRP, mg/ml | 1.9 (1.6) | 2.0 (2.7) |
Serum IL6, pg/mL | 1.5 (3.3) | 1.3 (1.2) |
Knee surgerya, n (%) | 11 (18%) | 11 (14%) |
Total knee replacement, n (%) | 10 (16%) | 8 (10%) |
Vitamin D supplementation from 2014 to 2016 | ||
No regular use, n (%) | 44 (72%) | 48 (61%) |
Regular use for 1 or 2 years, n (%) | 8 (13%) | 14 (18%) |
Regular use for 3 years, n (%) | 9 (15%) | 17 (22%) |
WOMAC | ||
Pain (0–500) | 106.0 (96.5) | 84.0 (79.2) |
Function (0–1700) | 353.6 (322.1) | 300.1 (293.6) |
Stiffness (0–200) | 45.8 (43.6) | 37.9 (36.7) |
Study knee VAS pain (0–100) | 33.4 (27.2) | 30.4 (26.6) |
AQoL utility (0–1) | 0.7 (0.2) | 0.7 (0.2) |
PHQ-9 (0–27) | 3.1 (3.1) | 2.9 (3.0) |
No depression, n (%) | 46 (75%) | 58 (73%) |
Mild depression, n (%) | 12 (20%) | 17 (22%) |
Moderate to severe depression, n (%) | 3 (5%) | 4 (5%) |
MET-min/week | 3383.1 (3662.7) | 3810.3 (3741.4) |
Physical activity categories | ||
Low | 20 (32.8%) | 14 (17.7%) |
Moderate | 17 (27.9%) | 25 (31.6%) |
High | 24 (39.3%) | 40 (50.6%) |