From: Association between serum 25-hydroxyvitamin D levels and carotid atherosclerosis in chronic kidney disease patients
Stages of CKD
n
Mean (SE)
Mean difference (SE)
P-value (t-test)
3A
29
42.69 (3.83)
Ref
3B
40
40.35 (3.86)
2.34 (5.49)
0.905
4
31
36.48 (3.88)
6.21 (5.82)
0.537
P-value for Wald F
0.558