Participant_Feedback_Only (None) 17
Name
Label
Description
Unit
DataType
Units of alcohol consumed per week
Phase 2 data. Alcohol Units Per Week in Phase 2 data. Phase 2 unit definition: 1 unit is equivalent to 1/2 pint of beer ; 1/2 glass of wine; 1 single measure of spirits; 1 glass of sherry; This is different from phase 1 unit definition. Used for participant feedback only. Not for analysis. Used set of alcohol consumption variables derived from general questionnaire instead.
U/Week
Real
Diabetes Status
Phase 2 data. Diabetes status of participant. This was used for study coordiniation purposes and participant feedback. It should NOT be used for analysis. The definition of raised and normal was based on WHO guidlines at the time of the visit and would have changed part way through the study. Use Glucose and HBA1c results to derive diabetes staus for analysis. 1 = HbA1C and OGTT normal; 2 = HbA1C and OGTT Raised; 3 = HbA1C raised and OGTT normal; 4 = HbA1C normal and OGTT raised;
Categorical
Max obs HR during treadmill test
Phase 2 data. Maximum observed Heart rate during treadmill test. (Highest value observed during treadmill test).
Real
Avg daily PA Level AH free living
Phase 2 data. Average daily Physical Activity Level during AH free living (PAL). Average PAL score (TEE/REE) as calculated using Adult: Group Act/Group HR (Old) in commercial software for purpose of volunteer feedback ONLY. This should NOT be used for data analysis.
Real
Predict max HR based on on age
Phase 2 data. Prediction of volunteers maximal heart rate based on on age. Tanaka equation: 208-0.7*age in years
Real
REE during AH free living
Phase 2 data. Resting Energy Expenditure during AH free living (REE) - Average daily estimated resting energy expenditure calculated vigorous intensity activity Schofield equation in kcal/day. For participant feedback only. Not for analysis
Real
Resting heart rate feedback only
Phase 2 data. Resting heart rate For participant feedback only. Not for analysis
Integer
Sleep HR during AH free living
Phase 2 data. Sleeping Heart Rate during AH (Actiheart) free living. The SHR is set as the average ofthe highest value of the thirty lowest minute-by-minute HR readings during each 24 hr day when the monitor was worn.
Real
Smoking Status Code
Phase 2 data. Smoking status as deduced by study team based on Gen Q entry by participant. Used for feedback to GP along with blood test results. This should not be used for data analysis but could be used for cross-checking. Use main set of smoking variables derived from General quetionnaire for anlysis. 1 = ex smoker; 2 = current smoker; 0 = never smoked;
Categorical
Smoking Status
Phase 2 data. Whether volunteer smokes has previously quit smoking (and year) or never smoked. Free text data item which can provide additional information to SmokingStatusCode. Used for participant and GP feedback only. Not for analysis
Text
Avg Daily TEE during AH free living
Phase 2 data. Average Daily Total Energy Expenditure during AH free living (TEE). Calculated in commercial software (REE+AEE+DIT). Average kcal/day. For purpose of volunteer feedback only.
Real
Treadmill Test length in Minutes
Phase 2 data. Treadmill Test length in Minutes (Un-cleaned) For purpose of volunteer feedback only. The data is as it was used for feedback to the participant and will not have been changed if after feedback the data was found to contain an error.
Integer
Time of start of treadmill test
Phase 2 data. Time of start of treadmill test in Hrs:Mins:Secs
Time
Pt fasted prior taking urine sample
Phase 2 data. Data as entered on Study database. Did participant fast prior to taking of urine sample. Fasted - not fasted - unknown
Text
VO2max calculation
Phase 2 data. Data as entered on Study database. New variable to calculate VO2max using a different algorithm. Values used for participant feedback only. Not for analysis. Use fitness variables in main actiheart dataset instead
Real
Walk Test Standing HR
Phase 2 data. Walk Test Standing HR. Data as entered on Study database. For participant feedback only. Use cleaned Walk test variables from main Actiheart dataset instead.
beats/min
Integer