Name Steward Organization Suggested Domain Suggested Domain Description Cde Group Classification
1e. If the participant quit smoking, specify the age at which they last smoked (i.e., quit) NACC Disease characterization
Including Alzheimer's Disease (AD)/AD-Related Dementias (ADRD) diagnosis and multiple chronic conditions (MCCs)
Other NIA-funded studies
  • NACC
    • Uniform Data Set
      • Form name- A5/D2: Participant Health History/Clinician-assessed Medical Conditions
        • Packet- Initial Visit Packet
          • Variable name- quitsmok

# Datatype
Value List

# Permissible value Value meaning name
8 8
9 9
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
71 71
72 72
73 73
74 74
75 75
76 76
77 77
78 78
79 79
80 80
81 81
82 82
83 83
84 84
85 85
86 86
87 87
88 88
89 89
90 90
91 91
92 92
93 93
94 94
95 95
96 96
97 97
98 98
99 99
100 100
101 101
102 102
103 103
104 104
105 105
106 106
107 107
108 108
109 109
110 110
888 888 = NA
999 999 = Unknown

# Identifier Origin Version
UDS_a5d2_Initial Visit Packet_quitsmok NACC-source_dataset+form_name+packet+var_name NACC_uds-v4-ivp-ded-11122025