Table 1 Linear regression analyses of serum 25(OH) D and patient and disease features stratified by sex
Women | Men | |||||
|---|---|---|---|---|---|---|
n | RC (95% CI) | p | n | RC (95% CI) | p | |
Age | 46 | −0.2 (−1.0, 0.6) | 0.56 | 83 | 0.2 (−0.3, 0.7) | 0.46 |
Season of inclusion | ||||||
Winter | 10 | Reference | 19 | Reference | ||
Spring | 11 | −2.2 (− 25.7, 21.3) | 0.85 | 21 | 5.8 (−9.1, 20.8) | 0.44 |
Summer | 8 | −1.9 (−27.4, 23.6) | 0.88 | 21 | 18.4 (3.4, 33.3) | 0.017 |
Fall | 17 | 5.5 (−16.0, 26.9) | 0.61 | 22 | 12.5 (−2.3, 27.3) | 0.097 |
T stage | ||||||
2 | 11 | Reference | 14 | Reference | ||
3 | 23 | −8.6 (−27.8, 10.6) | 0.37 | 40 | −6.8 (−20.9, 7.3) | 0.34 |
4 | 12 | −14.9 (−36.8, 6.9) | 0.18 | 29 | −23.1 (−37.9, −8.3) | 0.003 |
N stage | ||||||
0 | 21 | Reference | 37 | Reference | ||
1 | 17 | −23.5 (−39.2, 7.9) | 0.004 | 27 | 3.2 (−9.1, 15.5) | 0.61 |
2 | 8 | −22.4 (−42.3, 2.5) | 0.028 | 19 | −4.6 (−18.3, 9.1) | 0.50 |
M stage | ||||||
0 | 34 | Reference | 68 | Reference | ||
1 | 12 | −12.7 (−30.1, 4.6) | 0.15 | 15 | −6.9 (−20.6, 6.9) | 0.32 |
ACR stage | ||||||
I | 11 | Reference | 12 | Reference | ||
II | 11 | −4.5 (−26.1, 17.0) | 0.67 | 27 | −14.3 (−30.9, 2.4) | 0.091 |
III | 12 | −20.0 (−41.1, 1.1) | 0.063 | 29 | −13.5 (−30.0, 2.9) | 0.11 |
IV | 12 | −21.2 (−42.3, −0.1) | 0.049 | 15 | −18.3 (−36.9, 0.3) | 0.053 |