Unique individual serial number
Final status after Wave 4 interview
Age from dates of birth and of nurse visit, used for eligibility for measures
Actual age at nurse visit - collapsed at 90 plus
Year of birth, collapsed for those aged 90 or over
Respondent sex from household grid
Month of nurse visit
Year of nurse visit
Nurse questionnaire version
BP: Consent to BP measurement
BP: Whether respondent has eaten in the last 30 minutes
BP: Whether respondent has smoked in the last 30 minutes
BP: Whether respondent has drunk alcohol in the last 30 minutes
BP: Whether respondent has done any vigorous exercise in the last 30 minutes
BP: If respondent has done nothing that may affect their BP in the last 30 mins
BP: Cuff size used
BP: Air temperature (centigrade)
BP: 1st systolic reading (mmHg)
BP: 1st diastolic reading (mmHg)
BP: 1st pulse reading (bpm)
BP: 1st Mean Arterial Pressure (MAP) reading (mmHg)
BP: 1st set of BP readings are complete
BP: 2nd systolic reading (mmHg)
BP: 2nd diastolic reading (mmHg)
BP: 2nd pulse reading (bpm)
BP: 2nd Mean Arterial Pressure (MAP) reading (mmHg)
BP: 2nd set of BP readings are complete
BP: 3rd systolic reading (mmHg)
BP: 3rd diastolic reading (mmHg)
BP: 3rd pulse reading (bpm)
BP: 3rd Mean Arterial Pressure (MAP) reading (mmHg)
BP: 3rd set of BP readings are complete
BP: Whether BP measurements attempted and not obtained or not attempted
(D) Whether BP readings are valid
(D) Valid Mean Systolic BP
(D) Valid Mean Diastolic BP
(D) Valid Pulse Pressure
(D) Valid Mean Arterial Pressure
BP: Response to BP measurements
BP: Full set of BP measurements not collected due to problems with computer
BP: Full set of BP measurements not collected due to resp being upset/anxious
BP: Full set of BP measurements not collected due to error reading on equipment
BP: Full set of BP measurements not collected due to problems with cuff fitting
BP: Full set of BP measurements not collected due to problems with equipment
BP: Full set of BP measurements not collected due to other reason
BP: No problems in taking BP measurements
BP: Difficulty with taking BP measurements - reading taken on left arm
BP: Difficulty with taking BP measurements - resp upset/anxious/nervous
BP: Difficulty with taking BP measurements - problems with cuff fitting
BP: Difficulty with taking BP measurements - problems with equipment
BP: Difficulty with taking BP measurements - error reading on equipment
BP: Difficulty with taking BP measurements - other problem
Grip strength: Whether respondent is willing to have grip strength measured
Grip strength: Dominant hand to be used for grip strength measurements
Grip strength: Whether respondent is able to use both, one or neither hands
Grip strength: 1st measurement dominant hand (kg)
Grip strength: 1st measurement non-dominant hand (kg)
Grip strength: 2nd measurement dominant hand (kg)
Grip strength: 2nd measurement non-dominant hand (kg)
Grip strength: 3rd measurement dominant hand (kg)
Grip strength: 3rd measurement non-dominant hand (kg)
Grip strength: Position of respondent during measurements
Grip strength: Number of grip strength measurements obtained
Grip strength: Why none or only some measurements were obtained - resp refused
Grip strength: Why none or only some measurements were obtained - resp in pain
Grip strength: Why none or only some measurements were obtained - equipment fail
Grip strength: Why none or only some measurements were obtained - other reason
Blood sample: Whether has clotting disorder
Blood sample: Whether ever had a fit
Blood sample: Consent to take blood sample
Blood sample: Whether respondent was asked to fast
Blood sample: Whether eiligible for fasting sample (based on when/what last ate)
Blood sample: What did repondent have to eat
Blood sample: Other thing that respondent had to eat (not specified in previous
Blood sample: Why taking of blood sample was refused - previous difficulties
Blood sample: Why taking of blood sample was refused - dislike/fear of needles
Blood sample: Why taking of blood sample was refused - recently had blood test
Blood sample: Why taking of blood sample was refused - current illness
Blood sample: Why taking of blood sample was refused - worried about HIV or AIDS
Blood sample: Why taking of blood sample was refused - other reason
Blood Sample: Whether any blood samples taken (incl DNA samples)
Blood Sample: No problem in taking blood sample
Blood Sample: Problem in taking blood sample - incomplete sample
Blood Sample: Problem in taking blood sample - collapsing or poor veins
Blood Sample: Problem in taking blood sample - second attempt necessary
Blood Sample: Problem in taking blood sample - resp felt faint or fainted
Blood Sample: Problem in taking blood sample - unable to use tourniquet
Blood Sample: Problem in taking blood sample - other problem
Blood Sample: Reason for not obtaining blood sample - no suitable vein
Blood Sample: Reason for not obtaining blood sample - resp anxious/nervous
Blood Sample: Reason for not obtaining blood sample - resp felt faint or fainted
Blood Sample: Reason for not obtaining blood sample - other reason
(D) Outcome of blood sample (excludes DNA sample)
Blood fibrinogen level (g/l)
Total blood cholesterol level (mmol/l)
Blood HDL level (mmol/l)
Blood triglyceride level (mmol/l)
Blood LDL level (mmol/l)
Blood ferritin level (ng/ml)
Blood CRP level (mg/l)
Blood dehydroepiandrosterone (DHEAS) level (umol/l)
Blood insulin-like growth factor (IGF-1) level (nmol/l)
Blood glucose level (mmol/L) - fasting samples only
Blood haemoglobin level (g/dl)
Blood glycated haemoglobin level (%)
White blood cell count ( x 10^9 cells/litre)
Blood mean corpuscular haemoglobin level (pg/cell)
(D) Whether blood sample was taken and received by the lab
Standing height: Whether standing height measurement was attempted or obtained
Standing height: Standing height (cm) including unreliable measurements
Standing height: Reason for refusal of height measurement
Standing height: Whether estimated height will be in metric or imperial measures
Standing height: Estimated height (metres)
Standing height: Estimated height (feet)
Standing height: Estimated height (inches)
Standing height: Final measured/estimated height (cm) incl unreliable measures
(D) Valid height (cm)
(D) Whether height measure is valid
Standing height: Reason for not obtaining measurement - respondent is unsteady
Standing height:Reason for not obtaining measurement - resp cannot stand upright
Standing height: Reason for not obtaining measurement - resp is chairbound
Standing height: Reason for not obtaining measurement - resp is confined to bed
Standing height:Reason for not obtaining measurement-resp unable to remove shoes
Standing height: Reason for not obtaining measurement - resp is ill or in pain
Standing height: Reason for not obtaining measurement - equipment unavailable
Standing height: Reason for not obtaining measurement - other reason
Standing height: Reliability of standing height measurement according to nurse
Standing height: Reason for standing height measurement to be unreliable
Sitting height: Whether sitting height measurement was attempted or obtained
Sitting height measurement (cm)
Weight: Whether weight measurement was attempted or obtained
Weight (kg) including unreliable measures
Weight: Reason for refusal of weight measurement
Weight: Whether estimated weight will be in metric or imperial measures
Weight: Estimated weight (kg)
Weight: Estimated weight (stone)
Weight: Estimated weight (lb)
Weight: Final measured or estimated weight (kg) including unreliable measures
(D) Valid weight (Kg) inc. estimated>130kg
(D) Whether weight measure is valid
Weight: Reason for not obtaining measurement - respondent is unsteady
Weight: Reason for not obtaining measurement - respondent cannot stand upright
Weight: Reason for not obtaining measurement - respondent is chairbound
Weight: Reason for not obtaining measurement - respondent is confined to bed
Weight: Reason for not obtaining measurement - resp is unable to remove shoes
Weight: Reason for not obtaining measurement - resp weighs more than 130kg
Weight: Reason for not obtaining measurement - respondent is ill or in pain
Weight: Reason for not obtaining measurement - scales not working
Weight: Reason for not obtaining measurement - other reason
Weight: Surface scales places on
Weight: Reliability of weight measurement
(D) BMI - inc unreliable measurements (kg/m2)
(D) Valid BMI - inc estimated>130kg
(D) Whether BMI measure is valid
(D) Valid BMI grouped according to WHO definitions
Waist/Hip: Consent to waist/hip measurements
Waist: 1st waist measurement (cm)
Hip: 1st hip measurement (cm)
Waist: 2nd waist measurement (cm)
Hip: 2nd hip measurement (cm)
Waist: 3rd waist measurement (cm)
Hip: 3rd hip measurement (cm)
(D) Valid Mean Waist (cm)
(D) Valid Mean Hip (cm)
(D) Valid Mean Waist/Hip ratio
(D) Whether waist measurements are valid
(D) Whether hip measurements are valid
(D) Whether waist/hip measure is valid
Waist/Hip: Reason why none or only some measurements were obtained
Waist/Hip: Response to waist/hip measurements
Waist/Hip: Reason for not obtaining waist and hip measurements - resp chairbound
Waist/Hip:Reason for not obtaining waist/hip measurements - resp confined to bed
Waist/Hip: Reason for not obtaining waist and hip measurements - resp is stooped
Waist/Hip:Reason for not obtaining waist/hip mmnts - resp did not understand
Waist/Hip:Reason for not obtaining waist/hip mmnts - resp sensitive about size
Waist/Hip: Reason for not obtaining waist and hip measurements - no time
Waist/Hip: Reason for not obtaining waist and hip measurements - other reason
Waist: Whether problems with waist measurement
Waist: Whether problems likely to increase/decrease waist measurement
Hip: Whether problems with hip measurement
Hip: Whether problems likely to increase/decrease hip measurement
Lung function: Whether respondent had abdominal or chest surgery in last three w
Lung function: Whether respondent has had eye surgery in the last four weeks
Lung function: Whether admitted to hospital for heart complaint in last 6 weeks
Lung function:Whether respondent had a respiratory infection in last three weeks
Lung function: Whether used an inhaler/puffer in last 24 hours
Lung function: How many hours ago inhaler/puffer used
Lung function: Willing to have lung function measured
Lung function: Air temperature (centigrade)
Lung function: 1st FVC reading (litres)
Lung function: 1st FEV reading (litres)
Lung function: 1st PF reading (litres per minute)
Lung function: Whether respondent's technique was satisfactory for 1st reading
Lung function: 2nd FVC reading (litres)
Lung function: 2nd FEV reading (litres)
Lung function: 2nd PF reading (litres per minute)
Lung function: Whether respondent's technique was satisfactory for 2nd reading
Lung function: 3rd FVC reading (litres)
Lung function: 3rd FEV reading (litres)
Lung function: 3rd PF reading (litres per minute)
Lung function: Whether respondent's technique was satisfactory for 3rd reading
Lung function: Whether technique was satisfactory on any measurements
Lung function: Highest technically satisfactory FVC reading (litres)
Lung function: Highest technically satisfactory FEV reading (litres)
Lung function: Highest technically satisfactory PF reading (litres per minute)
Lung function: No readings obtained
Lung function: Reason why no measurements were obtained
Lung function: Measurements taken while standing or sitting?
Lung function: How many technically correct blows were obtained
Lung function:Reason why not all measurements were obtained-refused to continue
Lung function: Reason why not all measurements were obtained - breathlessness
Lung function: Reason why not all measurements were obtained - coughing fit
Lung function: Reason why not all measurements were obtained - equipment failed
Lung function: Reason why not all measurements were obtained - other reason
Lung function: Reason why refused or no measurments obtained
(D) Reason why lung function not measured
May be prevented from balancing or standing up from chair due to health reasons
Side-by-side stand: Whether respondent feels it is safe to attempt stand
Side-by-side stand: Outcome
Side-by-side stand: Time position held (seconds)
Side-by-side stand: Reason not attempted
Semi-tandem stand: Whether respondent feels it is safe to attempt stand
Semi-tandem stand: Outcome
Semi-tandem stand: Time position held (seconds)
Semi-tandem stand: Reason not attempted
Full tandem stand: Whether respondent feels it is safe to attempt stand
Full tandem stand: Time position held (seconds)
Full tandem stand: Outcome
Full tandem stand: Reason not attempted
Leg raise (eyes open): Whether respondent feels it is safe to attempt it
Leg raise (eyes open): Outcome
Leg raise (eyes open): Time leg raise held (seconds)
Leg raise (eyes open): Reason not attempted
Leg raise (eyes shut): Whether respondent feels it is safe to attempt it
Leg raise (eyes shut): Outcome
Leg raise (eyes shut): Time leg raise held (seconds)
Leg raise (eyes shut): Reason not attempted
Chair rise: Whether suitable chair available
Chair rise: Whether repsondent feels it is safe to attempt single chair rise
Chair rise: Single chair rise outcome
Chair rise: Reason single chair rise not attempted
Chair rise: Whether respondent feels it is safe to attempt multiple chair rises
Chair rise: Outcome of multiple chair rises (number of rises completed)
Chair rise: Time to complete 5 rises (seconds)
Chair rise: Time to complete ten rises (seconds) - only eligible if under 70 yrs
(D) Chair rise: Outcome of multiple chair rises, split by age
Chair rise: Reason multiple chair rises not attempted
Wave 4 weight for nurse data (excluding blood sample analyses)
Wave 4 weight for blood sample analyses