If you were to use
E-Mail Merge Add-in or
Merge and Split to merge your document to separate documents and the field was inserted in the merge document as
{ MERGEFIELD IMMUNIZATIONS } Immunizations
then you could run a macro on the fly to replace the value with a check box content control, either checked or not according to the value. e.g.
Code:
Sub FixCheck(oDoc)
Dim oChk As Range
Dim oWord As Range
Dim oCtrl As ContentControl
Dim bVal As Boolean
Set oChk = oDoc.Range
With oChk.Find
Do While .Execute(findText:="Immunizations")
Set oWord = oChk.Previous.Words.Last
Select Case LCase(Trim(oWord.Text))
Case "yes": bVal = True
Case "no": bVal = False
End Select
Set oChk = oWord
Set oCtrl = oChk.ContentControls.Add
oCtrl.Range.Text = ""
With oCtrl
.Type = wdContentControlCheckBox
.Title = "Immunizations": .Tag = .Title
.Checked = bVal
.LockContentControl = True
End With
Exit Do
Loop
End With
lbl_Exit:
Set oChk = Nothing
Set oWord = Nothing
Set oCtrl = Nothing
Exit Sub
End Sub