group, mild or moderate
0 = control
1 = Mild AD (21 - 24)
2 = Moderate AD (10 - 20)

0 = Male
1 = Female

0 = Unknown
1 = Single
2 = Married
3 = Widowed
4 = Divorced

Ethnic origin
0 = White British
1 = White South African

Years since stopping smoking
0 = >50 years
1 = 40 - 49 years
2 = 30 - 39 years
3 = 20 -29 years
4 = 10 - 19 years
5 = 5 - 9 years
6 = <5 years
7 = Not Applicable

Family history of dementia?
0 = No
1 = Yes
2 = unknown - adopted at birth

Left or Right handedness
0 = Left
1 = Right

are they taking acetylcholinesterase inhibitors?
0 = Not applicable
1 = No
2 = Yes
3 = Memantine

ECG overall interpretation
0 = Normal ECG
1 = Abnormal NCS
2 = Abnormal CS

ADAS naming score
0 = 0-2 named incorrectly
1 = 3-5 named incorrectly
2 = 6-8 named incorrectly
3 = 9-11 named incorrectly
4 = 12-14 named incorrectly
5 = 15 - 17 named incorrectly

ADAS Remembering test instructions
0 = no reminders given in word recognition
1 = Very mild
2 = Mild
3 = Moderate
4 = Moderately severe
5 = Severe

ADAS Comprehension instructions
0 = None: participant understands
1 = Very Mild
2 = Mild
3 = Moderate
4 = Moderately severe
5 = Severe

ADAS Word Finding Difficulty
0 = no evidence of word finding difficulty
1 = Very mild
2 = Mild
3 = Moderate
4 = Moderately severe
5 = Severe

ADAS Spoken Language ability
0 = Participant speaks clearly
1 = Very mild
2 = Mild
3 = Moderate
4 = Moderately severe
5 = Severe

ADAS Concentration score
0 = no evidence of poor concentration
1 = Very mild
2 = Mild
3 = Moderate
4 = Moderately severe
5 = Severe

ADAS Maze task score
0 = 0-30 seconds
1 = 31-60 seconds
2 = 61-90 seconds
3 = 91-120 seconds
4 = 121-239 seconds
5 = 240 seconds

ADAS Number Cancellation score No of correct targets
0 = >/= 30
1 = 24-29
2 = 18-23
3 = 12-17
4 = 6-11
5 = 0-5

cannot get to sleep within 30minutes
0 = not during the past month
1 = less than once a week
2 = once or twice a week
3 = three or more times a week

rate sleep quality overall
0 = very good
1 = fairly good
2 = fairly bad
3 = very bad

enough enthusiasm to get things done
0 = No problem at all
1 = Only a very slight problem
2 = Somewhat of a problem
3 = A very big problem

do you have a bed partner or room mate
0 = No bed partner or room mate
1 = partner/room mate in other room
2 = Partner in same room not same bed
3 = partner in same bed

group control or AD
0 = control
1 = AD

Delusions Frequency
0 = No
1 = Occasionally
2 = Often
3 = Frequently
4 = Very frequently

Delusions Severity
0 = no
1 = Mild
2 = Moderate
3 = Marked

Delusions Carer Distress
0 = Not at all
1 = Minimally
2 = Mildly
3 = Moderately
4 = Severely
5 = Very severely or extremely

Agitation / Agression Frequency
0 = no
1 = Occasionally
2 = Often
3 = Frequently
4 = Very Frequently

Agitation / Agression Severity
0 = No
1 = Mild
2 = Moderate
3 = Marked

Depression Frequency
0 = No
1 = Occasionally
2 = Often
3 = Frequently
4 = Very Frequently

Depression Severity
0 = No
1 = mild
2 = Moderate
3 = Marked

Irritability / Lability Frequency
0 = no
1 = Occasionally
2 = Often
3 = Frequently
4 = Very frequently

Had MRI before
0 = Yes
1 = No

Did anyone explain risks and benefits of the procedure
0 = Yes completely
1 = Yes to some extent
2 = No
3 = I didn't want an explanation

Did a member of staff answer your questions about the procedure
0 = Yes completely
1 = Yes to some extent
2 = No
3 = I didn't have any questions

I felt anxious about the scan beforehand
0 = Not at all
1 = Slightly
2 = Moderately
3 = Very
4 = Extremely

I found the scanner to be too noisy
0 = Strongly disagree
1 = Disagree
2 = Undecided
3 = Agree
4 = Strongly agree

I had to force myself to manage the situation
0 = Strongly Disagree
1 = Disagree
2 = Undecided
3 = Agree
4 = Strongly agree

0 = Not Selected
1 = Selected