Name Steward Organization Suggested Domain Suggested Domain Description Cde Group Classification
7d3. Age at last use of birth control pills NACC Demographic information
Patient and caregiver demographic information
Other NIA-funded studies
  • NACC
    • Uniform Data Set
      • Form name- A5/D2: Participant Health History/Clinician-assessed Medical Conditions
        • Packet- Final Visit Packet
          • Variable name- bcendage

# Datatype
Value List

# Permissible value Value meaning name
10 10
11 11
12 12
13 13
14 14
15 15
16 16
17 17
18 18
19 19
20 20
21 21
22 22
23 23
24 24
25 25
26 26
27 27
28 28
29 29
30 30
31 31
32 32
33 33
34 34
35 35
36 36
37 37
38 38
39 39
40 40
41 41
42 42
43 43
44 44
45 45
46 46
47 47
48 48
49 49
50 50
51 51
52 52
53 53
54 54
55 55
56 56
57 57
58 58
59 59
60 60
61 61
62 62
63 63
64 64
65 65
66 66
67 67
68 68
69 69
70 70
777 777 = Age provided at previous UDS visit
888 888 = Still presently using
999 999 = Unknown

# Identifier Origin Version
UDS_a5d2_Final Visit Packet_bcendage NACC-source_dataset+form_name+packet+var_name NACC_uds-v4-fvp-ded-12112025