Effects of Monthly Intramuscular High-Dose Vitamin D2 on Serum 25-Hydroxyvitamin D and Immune Parameters in Very Elderly Chinese Patients with Vitamin D Deficiency

Table 3

Changes in serum immune function parameters after intervention.

Parameters	Baseline	End of intervention	t
Total T cells (CD3+)	68.27 ± 13.00	68.13 ± 11.41	0.115	0.910
B cells (CD19+)	5.42 ± 3.34	7.91 ± 5.27	−3.556	0.002
CD4	39.57 ± 9.24	42.07 ± 9.07	−2.295	0.030
CD8	25.83 ± 13.11	23.33 ± 12.50	4.521	≤0.001