Table 3. Vitamin D Treatment Changes Among the Patients Who Had a Deficient Last Vitamin D Level and an Increase in Treatment After That Level (N = 48).

Treatment after vitamin D level	None	1-1000 IU D3/multivitamin	D2	2000 IU D3/Calcitriol
Treatment before vitamin D level
None	0	8	20	10
1-1000 IU D3/multivitamin	0	0	<5^a	<5^a
D2	0	0	0	<5^a
2000 IU D3/calcitriol	0	0	0	0

^{^a}

Frequency counts of 5 or less have been masked in this table to preserve confidentiality.