Uniform Data Set version 4
UDSv4 - Template
United States
Reference ID
USDv4
Producer(s)
National Alzheimer’s Coordinating Center (NACC) and the NIA-funded ADRC network
Collections
Created on
Jul 02, 2026
Last modified
Jul 07, 2026
Page views
12950
8b. Part B: Total number of seconds to complete (if not finished by 300 seconds, enter 300) (trailb)
Data file: UDSv4TemplateForXMLD_2026-04-14_0731.REDCap.xml
Overview
Valid:
58
Range:
-
Format:
Questions and instructions
Question pretext
[loc_c2_or_c2t]='C2'
Categories
| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0 | 0 |
0%
|
| 1 | 1 | 0 |
0%
|
| 2 | 2 | 0 |
0%
|
| 3 | 3 | 0 |
0%
|
| 4 | 4 | 0 |
0%
|
| 5 | 5 | 0 |
0%
|
| 6 | 6 | 0 |
0%
|
| 7 | 7 | 0 |
0%
|
| 8 | 8 | 0 |
0%
|
| 9 | 9 | 0 |
0%
|
| 10 | 10 | 0 |
0%
|
| 11 | 11 | 0 |
0%
|
| 12 | 12 | 0 |
0%
|
| 13 | 13 | 0 |
0%
|
| 14 | 14 | 0 |
0%
|
| 15 | 15 | 0 |
0%
|
| 16 | 16 | 0 |
0%
|
| 17 | 17 | 0 |
0%
|
| 18 | 18 | 0 |
0%
|
| 19 | 19 | 0 |
0%
|
| 20 | 20 | 0 |
0%
|
| 21 | 21 | 0 |
0%
|
| 22 | 22 | 0 |
0%
|
| 23 | 23 | 0 |
0%
|
| 24 | 24 | 0 |
0%
|
| 25 | 25 | 0 |
0%
|
| 26 | 26 | 0 |
0%
|
| 27 | 27 | 0 |
0%
|
| 28 | 28 | 0 |
0%
|
| 29 | 29 | 0 |
0%
|
| 30 | 30 | 0 |
0%
|
| 31 | 31 | 0 |
0%
|
| 32 | 32 | 0 |
0%
|
| 33 | 33 | 0 |
0%
|
| 34 | 34 | 0 |
0%
|
| 35 | 35 | 0 |
0%
|
| 36 | 36 | 0 |
0%
|
| 37 | 37 | 0 |
0%
|
| 38 | 38 | 0 |
0%
|
| 39 | 39 | 0 |
0%
|
| 40 | 40 | 0 |
0%
|
| 41 | 41 | 0 |
0%
|
| 42 | 42 | 0 |
0%
|
| 43 | 43 | 0 |
0%
|
| 44 | 44 | 0 |
0%
|
| 45 | 45 | 0 |
0%
|
| 46 | 46 | 0 |
0%
|
| 47 | 47 | 0 |
0%
|
| 48 | 48 | 0 |
0%
|
| 49 | 49 | 0 |
0%
|
| 50 | 50 | 0 |
0%
|
| 51 | 51 | 0 |
0%
|
| 52 | 52 | 0 |
0%
|
| 53 | 53 | 0 |
0%
|
| 54 | 54 | 0 |
0%
|
| 55 | 55 | 0 |
0%
|
| 56 | 56 | 0 |
0%
|
| 57 | 57 | 0 |
0%
|
| 58 | 58 | 0 |
0%
|
| 59 | 59 | 0 |
0%
|
| 60 | 60 | 0 |
0%
|
| 61 | 61 | 0 |
0%
|
| 62 | 62 | 0 |
0%
|
| 63 | 63 | 0 |
0%
|
| 64 | 64 | 0 |
0%
|
| 65 | 65 | 0 |
0%
|
| 66 | 66 | 0 |
0%
|
| 67 | 67 | 0 |
0%
|
| 68 | 68 | 0 |
0%
|
| 69 | 69 | 0 |
0%
|
| 70 | 70 | 0 |
0%
|
| 71 | 71 | 0 |
0%
|
| 72 | 72 | 0 |
0%
|
| 73 | 73 | 0 |
0%
|
| 74 | 74 | 0 |
0%
|
| 75 | 75 | 0 |
0%
|
| 76 | 76 | 0 |
0%
|
| 77 | 77 | 0 |
0%
|
| 78 | 78 | 0 |
0%
|
| 79 | 79 | 0 |
0%
|
| 80 | 80 | 0 |
0%
|
| 81 | 81 | 0 |
0%
|
| 82 | 82 | 0 |
0%
|
| 83 | 83 | 0 |
0%
|
| 84 | 84 | 0 |
0%
|
| 85 | 85 | 0 |
0%
|
| 86 | 86 | 0 |
0%
|
| 87 | 87 | 25 |
43.1%
|
| 88 | 88 | 0 |
0%
|
| 89 | 89 | 0 |
0%
|
| 90 | 90 | 0 |
0%
|
| 91 | 91 | 0 |
0%
|
| 92 | 92 | 0 |
0%
|
| 93 | 93 | 0 |
0%
|
| 94 | 94 | 0 |
0%
|
| 95 | 95 | 0 |
0%
|
| 96 | 96 | 0 |
0%
|
| 97 | 97 | 0 |
0%
|
| 98 | 98 | 0 |
0%
|
| 99 | 99 | 0 |
0%
|
| 100 | 100 | 0 |
0%
|
| 101 | 101 | 0 |
0%
|
| 102 | 102 | 0 |
0%
|
| 103 | 103 | 0 |
0%
|
| 104 | 104 | 0 |
0%
|
| 105 | 105 | 0 |
0%
|
| 106 | 106 | 0 |
0%
|
| 107 | 107 | 0 |
0%
|
| 108 | 108 | 0 |
0%
|
| 109 | 109 | 0 |
0%
|
| 110 | 110 | 0 |
0%
|
| 111 | 111 | 0 |
0%
|
| 112 | 112 | 0 |
0%
|
| 113 | 113 | 0 |
0%
|
| 114 | 114 | 0 |
0%
|
| 115 | 115 | 0 |
0%
|
| 116 | 116 | 0 |
0%
|
| 117 | 117 | 0 |
0%
|
| 118 | 118 | 0 |
0%
|
| 119 | 119 | 0 |
0%
|
| 120 | 120 | 0 |
0%
|
| 121 | 121 | 0 |
0%
|
| 122 | 122 | 0 |
0%
|
| 123 | 123 | 0 |
0%
|
| 124 | 124 | 0 |
0%
|
| 125 | 125 | 0 |
0%
|
| 126 | 126 | 0 |
0%
|
| 127 | 127 | 0 |
0%
|
| 128 | 128 | 0 |
0%
|
| 129 | 129 | 0 |
0%
|
| 130 | 130 | 0 |
0%
|
| 131 | 131 | 0 |
0%
|
| 132 | 132 | 0 |
0%
|
| 133 | 133 | 0 |
0%
|
| 134 | 134 | 0 |
0%
|
| 135 | 135 | 0 |
0%
|
| 136 | 136 | 0 |
0%
|
| 137 | 137 | 0 |
0%
|
| 138 | 138 | 0 |
0%
|
| 139 | 139 | 0 |
0%
|
| 140 | 140 | 0 |
0%
|
| 141 | 141 | 0 |
0%
|
| 142 | 142 | 0 |
0%
|
| 143 | 143 | 0 |
0%
|
| 144 | 144 | 0 |
0%
|
| 145 | 145 | 0 |
0%
|
| 146 | 146 | 0 |
0%
|
| 147 | 147 | 0 |
0%
|
| 148 | 148 | 0 |
0%
|
| 149 | 149 | 0 |
0%
|
| 150 | 150 | 0 |
0%
|
| 151 | 151 | 0 |
0%
|
| 152 | 152 | 0 |
0%
|
| 153 | 153 | 0 |
0%
|
| 154 | 154 | 0 |
0%
|
| 155 | 155 | 0 |
0%
|
| 156 | 156 | 0 |
0%
|
| 157 | 157 | 0 |
0%
|
| 158 | 158 | 0 |
0%
|
| 159 | 159 | 0 |
0%
|
| 160 | 160 | 0 |
0%
|
| 161 | 161 | 0 |
0%
|
| 162 | 162 | 0 |
0%
|
| 163 | 163 | 0 |
0%
|
| 164 | 164 | 0 |
0%
|
| 165 | 165 | 0 |
0%
|
| 166 | 166 | 0 |
0%
|
| 167 | 167 | 10 |
17.2%
|
| 168 | 168 | 0 |
0%
|
| 169 | 169 | 0 |
0%
|
| 170 | 170 | 0 |
0%
|
| 171 | 171 | 0 |
0%
|
| 172 | 172 | 0 |
0%
|
| 173 | 173 | 0 |
0%
|
| 174 | 174 | 0 |
0%
|
| 175 | 175 | 0 |
0%
|
| 176 | 176 | 0 |
0%
|
| 177 | 177 | 0 |
0%
|
| 178 | 178 | 0 |
0%
|
| 179 | 179 | 0 |
0%
|
| 180 | 180 | 0 |
0%
|
| 181 | 181 | 0 |
0%
|
| 182 | 182 | 0 |
0%
|
| 183 | 183 | 0 |
0%
|
| 184 | 184 | 0 |
0%
|
| 185 | 185 | 0 |
0%
|
| 186 | 186 | 0 |
0%
|
| 187 | 187 | 0 |
0%
|
| 188 | 188 | 0 |
0%
|
| 189 | 189 | 0 |
0%
|
| 190 | 190 | 0 |
0%
|
| 191 | 191 | 0 |
0%
|
| 192 | 192 | 0 |
0%
|
| 193 | 193 | 0 |
0%
|
| 194 | 194 | 0 |
0%
|
| 195 | 195 | 0 |
0%
|
| 196 | 196 | 0 |
0%
|
| 197 | 197 | 0 |
0%
|
| 198 | 198 | 0 |
0%
|
| 199 | 199 | 0 |
0%
|
| 200 | 200 | 0 |
0%
|
| 201 | 201 | 0 |
0%
|
| 202 | 202 | 0 |
0%
|
| 203 | 203 | 0 |
0%
|
| 204 | 204 | 0 |
0%
|
| 205 | 205 | 0 |
0%
|
| 206 | 206 | 0 |
0%
|
| 207 | 207 | 0 |
0%
|
| 208 | 208 | 0 |
0%
|
| 209 | 209 | 0 |
0%
|
| 210 | 210 | 23 |
39.7%
|
| 211 | 211 | 0 |
0%
|
| 212 | 212 | 0 |
0%
|
| 213 | 213 | 0 |
0%
|
| 214 | 214 | 0 |
0%
|
| 215 | 215 | 0 |
0%
|
| 216 | 216 | 0 |
0%
|
| 217 | 217 | 0 |
0%
|
| 218 | 218 | 0 |
0%
|
| 219 | 219 | 0 |
0%
|
| 220 | 220 | 0 |
0%
|
| 221 | 221 | 0 |
0%
|
| 222 | 222 | 0 |
0%
|
| 223 | 223 | 0 |
0%
|
| 224 | 224 | 0 |
0%
|
| 225 | 225 | 0 |
0%
|
| 226 | 226 | 0 |
0%
|
| 227 | 227 | 0 |
0%
|
| 228 | 228 | 0 |
0%
|
| 229 | 229 | 0 |
0%
|
| 230 | 230 | 0 |
0%
|
| 231 | 231 | 0 |
0%
|
| 232 | 232 | 0 |
0%
|
| 233 | 233 | 0 |
0%
|
| 234 | 234 | 0 |
0%
|
| 235 | 235 | 0 |
0%
|
| 236 | 236 | 0 |
0%
|
| 237 | 237 | 0 |
0%
|
| 238 | 238 | 0 |
0%
|
| 239 | 239 | 0 |
0%
|
| 240 | 240 | 0 |
0%
|
| 241 | 241 | 0 |
0%
|
| 242 | 242 | 0 |
0%
|
| 243 | 243 | 0 |
0%
|
| 244 | 244 | 0 |
0%
|
| 245 | 245 | 0 |
0%
|
| 246 | 246 | 0 |
0%
|
| 247 | 247 | 0 |
0%
|
| 248 | 248 | 0 |
0%
|
| 249 | 249 | 0 |
0%
|
| 250 | 250 | 0 |
0%
|
| 251 | 251 | 0 |
0%
|
| 252 | 252 | 0 |
0%
|
| 253 | 253 | 0 |
0%
|
| 254 | 254 | 0 |
0%
|
| 255 | 255 | 0 |
0%
|
| 256 | 256 | 0 |
0%
|
| 257 | 257 | 0 |
0%
|
| 258 | 258 | 0 |
0%
|
| 259 | 259 | 0 |
0%
|
| 260 | 260 | 0 |
0%
|
| 261 | 261 | 0 |
0%
|
| 262 | 262 | 0 |
0%
|
| 263 | 263 | 0 |
0%
|
| 264 | 264 | 0 |
0%
|
| 265 | 265 | 0 |
0%
|
| 266 | 266 | 0 |
0%
|
| 267 | 267 | 0 |
0%
|
| 268 | 268 | 0 |
0%
|
| 269 | 269 | 0 |
0%
|
| 270 | 270 | 0 |
0%
|
| 271 | 271 | 0 |
0%
|
| 272 | 272 | 0 |
0%
|
| 273 | 273 | 0 |
0%
|
| 274 | 274 | 0 |
0%
|
| 275 | 275 | 0 |
0%
|
| 276 | 276 | 0 |
0%
|
| 277 | 277 | 0 |
0%
|
| 278 | 278 | 0 |
0%
|
| 279 | 279 | 0 |
0%
|
| 280 | 280 | 0 |
0%
|
| 281 | 281 | 0 |
0%
|
| 282 | 282 | 0 |
0%
|
| 283 | 283 | 0 |
0%
|
| 284 | 284 | 0 |
0%
|
| 285 | 285 | 0 |
0%
|
| 286 | 286 | 0 |
0%
|
| 287 | 287 | 0 |
0%
|
| 288 | 288 | 0 |
0%
|
| 289 | 289 | 0 |
0%
|
| 290 | 290 | 0 |
0%
|
| 291 | 291 | 0 |
0%
|
| 292 | 292 | 0 |
0%
|
| 293 | 293 | 0 |
0%
|
| 294 | 294 | 0 |
0%
|
| 295 | 295 | 0 |
0%
|
| 296 | 296 | 0 |
0%
|
| 297 | 297 | 0 |
0%
|
| 298 | 298 | 0 |
0%
|
| 299 | 299 | 0 |
0%
|
| 300 | 300 | 0 |
0%
|
| 995 | 995 = Physical problem | 0 |
0%
|
| 996 | 996 = Cognitive/behavior problem | 0 |
0%
|
| 997 | 997 = Other problem | 0 |
0%
|
| 998 | 998 = Verbal refusal | 0 |
0%
|
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.
Others
Notes
Field Note : (0-300, 995-998)