Cohort Descriptives

Variable Response
Cohort Name The Airwave Health Monitoring Study
Cohort Acronym Airwave
Study Overview The Airwave Health Monitoring Study was established to evaluate possible health risks associated with the use of TETRA, a digital communication system used by the police forces and other emergency services in Great Britain since 2001. It is a long-term observational study following up the health of the police force with respect to TETRA exposure, and ability to monitor both cancer and non-cancer health outcomes. Baseline screening consisted of an enrolment questionnaire and a health screening.
#Subjects at Baseline 55,000 completed the enrolment questionnaire, of which 46,000 have also completed the health screening.
Institution Name Imperial College London
Department Name Department of Epidemiology and Biostatistics School of Public Health
City London
Study/Database Website

http://www.police-health.org.uk/

Principal Investigator (PI)
PI Address Department of Epidemiology and Biostatistics School of Public Health, Imperial College Faculty of Medicine, Norfolk Place, London, W2 1PG
Key Study References

Open literature list

Population Based Study? Yes
Family Based Study? No
Clinical based sample? No
Is there follow-up data available? No
Were participants included prior to development of dementia (may refer to controls only)? Yes
Were participants included prior to development of MCI (may refer to controls only)? Yes
How is data collected? Combination: In the first phase, every employee receives the enrolment (paper) questionnaire via routine administration or the occupational health service. This questionnaire is scanned and data received at Imperial College.
Who carries out data collection? Interviewers Clinical staff: Nursing staff were involved although the questionnaires were carried out themselves.
Does this take place in participants' homes or at a central location? Home Central: Paper questionnaires were sent out by each force to the home or office of employees and clinics were performed regionally.
Do participants take part individually or are families/partners involved? Individually
Dementia cases ascertained as part of study: No
Diagnosis based on review of existing clinical data No
Was diagnosis/primary outcomes made blind to exposure variables? No
How many times followed up? 2
Study start date 1/1/2004 12:00:00 AM
Is study ongoing? Yes
Is study still recruiting? No
Inclusion criteria Baseline: people employed in the police force across the UK. Follow up: anyone who completed the health screening at Baseline and consents to long-term follow up from medical records.
Exclusion criteria Baseline: people unable to consent. Follow up: anyone who has filled in the enrolment questionnaire but not had the health screening, and/or who does not consent to long-term follow up from medical records.

Administration

Variable type
Participant number
Five digit barcode number
Questionnaire version
Source
Country (England, Wales, Scotland) at enrolment
Current rank in the force
Sex
When screened
Age at screen

Sociodemographic

Sub-category Variable type Screening Follow-Up Long-Term Follow-Up
Deprivation Total personal annual income received before tax Y    
Deprivation Total income (including self) household received in the last 12 months Y    
Deprivation Number of people (including self) contribute to total household income Y    
Deprivation Number of people (excluding self) living in household Y    
Deprivation Number of children under 18 in household Y    
Education Highest level of education completed to date Y    
Employment Years in current role Y    
Employment Year of joining the police force Y    
Ethnicity Ethnic origin Y    
Maritalstatus Marital Status Y    
Maritalstatus Marital Status - other Y    

Family History

Sub-category Variable type Screening Follow-Up Long-Term Follow-Up
Father Is your biological father still alive Y    
Father Age of father when he died Y    
Father Father: Cause of death Y    
Mother Is your biological mother still alive Y    
Mother Age of mother when she died Y    
Mother Mother: Cause of death Y    

Early Life History

Sub-category Variable type Screening Follow-Up Long-Term Follow-Up
Childhood Environment Spouse or partner was a regular smoker when commencing attempts to get pregnant Y    
Childhood Environment Spouse/partner was a regular smoker before commencing first pregnancy Y    
Handedness Handedness Y    
Mother Smoked Regular smoker when commencing attempts to get pregnant Y    
Mother Smoked A regular smoker before commencing first pregnancy Y    

Physical Health Status

Sub-category Variable type Screening Follow-Up Long-Term Follow-Up
Cancer Diagnosed conditions - Cancer Y    
Cancer Year of diagnosis - Cancer Y    
Cancer Typ of diagnosed cancer Y    
Cardiothoracic Diagnosed conditions - High cholesterol Y    
Cardiothoracic Diagnosed conditions - Hypertension Y    
Cardiothoracic Diagnosed conditions - Stroke Y    
Cardiothoracic Diagnosed conditions - Angina Y    
Cardiothoracic Diagnosed conditions - Heart attack Y    
Cardiothoracic Diagnosed conditions - High blood pressure Y    
Cardiothoracic Diagnosed conditions - Other heart conditions Y    
ENT Diagnosed conditions - deafness/partial hearing loss Y    
ENT Year of diagnosis - deafness/partial hearing loss Y    
Eyes Diagnosed conditions - Cataract Y    
Eyes Diagnosed conditions - Glaucoma Y    
General Health Other conditions diagnosis; Y    
General Health Age at diagnosis of other conditions; Y    
Immunological Diagnosed conditions - Thyroid Y    
Neurological Year of diagnosis - Epilepsy Y    
Neurological Diagnosed conditions - Epilepsy Y    
Pain A severe pain across the front of your chest lasting half an hour or more in the past year Y    
Pain Any pain or discomfort in your chest in the past year Y    
Pain Bothersome headaches experienced following use of phone: Moderate or Severe Headache Y    
Pain Frequency of bothersome headaches Y    
Pain Frequency of the 'Moderate or Severe' headache Y    
Pain Number of attacks (sever pain and discomfort in chest) in the past year Y    
Pain Other symptoms experience with bothersome headaches described - feel sick or vomit Y    
Pain Pain or discomfort goes away when standing still Y    
Pain Pain or discomfort in chest when walking at an ordinary pace on the level Y    
Pain The diagnosis for chest pain Y    
Reproductive Birth control types Y    
Reproductive Ever taken contraceptive pill Y    
Reproductive Number of years trying to get pregnant before giving up or becoming pregnant Y    
Reproductive Participant or spouse/partner has had any disease - condition - medical or surgical treatment that makes it difficult or impossible to have children Y    
Reproductive Reason for giving up attempts to become pregnant Y    
Reproductive Still trying to get pregnant Y    
Reproductive Year of diagnosis for condition which makes it difficult or impossible to have children Y    
Reproductive Year of first experience of difficulties becoming pregnant Y    
Respiratory Diagnosed conditions - COPD Y    
Respiratory Diagnosed conditions - Asthma Y    
Rheumatology Diagnosed conditions - Arthritis Y    
Rheumatology Year of diagnosis - Arthritis Y    

Reproductive History

Sub-category Variable type Screening Follow-Up Long-Term Follow-Up
Female Age when had HRT Y    
Female Age when periods started Y    
Female Age when periods stopped Y    
Female Date of birth of spouse or partner Y    
Female Delivery Y    
Female Ever had HRT Y    
Female Menopause or periods stopped Y    
Female Menopause. Don't know - specified: Y    
Female Never been pregnant/never fathered a child Y    
Female Number of babies Y    
Female Number of times pregnant/pregnancies fathered Y    
Female Reason for end of pregnancy Y    
Female Sex of baby Y    
Female Treatment received for infertility Y    
Female Weight of baby Y    
Female Year when the pregnancy ended or - if currently pregnant - when delivery due Y    

Psychological Status

Sub-category Variable type Screening Follow-Up Long-Term Follow-Up
Sleep Over past 2 weeks has been bothered by Trouble falling or staying asleep - too much sleep Y    
Sleep Amount of sleep usually enjoyed over a 24 hour period Y    
Wellbeing Over past 2 weeks has been bothered by Little interest or pleasure in doing things Y    
Wellbeing Over past 2 weeks has been bothered by Feeling down - depressed or hopeless Y    

Mental Health Status

Sub-category Variable type Screening Follow-Up Long-Term Follow-Up
Consultation Medical or other professional help sought to cope with disturbing incident Y    
Mood Diagnosed conditions - Depression Y    
Mood Over past 2 weeks has been bothered by Feeling tired or having little energy Y    
Mood Over past 2 weeks has been bothered by Feeling bad about themselves; has a feeling of letting down self or family Y    
Mood Over past 2 weeks has been bothered by Moving or speaking slowly; fidgety or restless Y    
Mood Anxiety in the past 2 weeks. Feeling tense or 'wound up' Y    
Mood Anxiety in the past 2 weeks. Feeling frightened as if something awful is about to happen Y    
Mood Anxiety in the past 2 weeks. Worrying thoughts Y    
Mood Bothered by a disturbing incident which has occurred over the past 6 months. Y    
Trauma Following traumatic event has been bothered by recurrence of upsetting thoughts or memories Y    
Trauma Following traumatic event has been bothered by being upset by reminders of the event Y    
Trauma Following traumatic event has been bothered by difficulty falling or staying asleep Y    
Trauma Following traumatic event has been bothered by difficulty concentrating Y    
Trauma Following traumatic event has been jumpy or startled at the unexpected Y    

Cognitive Status

Sub-category Variable type Screening Follow-Up Long-Term Follow-Up
PD Diagnosed conditions - Parkinson's Y    
PD Year of diagnosis - Parkinson's Y    

Lifestyle

Sub-category Variable type Screening Follow-Up Long-Term Follow-Up
Alcohol Currently drinking alcohol Y    
Alcohol Past drinking habits Y    
Alcohol Reasons for stopping or reducing drinking alcohol. Specified: Y    
Alcohol Six or more drinks on one occasion Y    
Alcohol Type of drink(s) consumed in the past seven days Y    
Alcohol Year stopped drinking alcohol Y    
Diet Are you following any special kind of diet right now Y    
Diet Cans of fizzy drinks per day Y    
Diet Consumption of nuts Y    
Diet Cups of coffee per day Y    
Diet Cups of tea per day Y    
Diet Days per week eating fruit Y    
Diet Days per week eating vegetables Y    
Diet Amount and type of fruit and vegetables consumed; Y    
Digital Technology Currently using a mobile phone Y    
Digital Technology Currently using hands-free equipment or a headset with mobile phone(s) Y    
Digital Technology Estimate of the proportion of time usually spent using hands-free equipment or a handset while talking on mobile phone(s) Y    
Digital Technology Frequency of moving the mobile phone from ear to ear during calls Y    
Digital Technology Not counting SMS text messaging - estimate of total duration of phone calls made and received on mobile phone(s) in the last 24 hours: HH Y    
Digital Technology Symptoms experienced while using or shortly after using mobile phone(s) Y    
Leisure Hours spent watching television during the last 7 days Y    
Physical During the last 7 days - on how many days did you walk for at least 10 minutes at a time Y    
Physical Moderate physical activities. Minutes spent doing vigorous physical activities on one day in the past 7 Y    
Physical Vigorous physical activities. Minutes spent doing vigorous physical activities on one day in the past 7 Y    
Smoking Hours per week exposed to other peoples tobacco smoke at home Y    
Smoking Number of cigarettes a day usually smoked before giving up Y    
Smoking Number of cigarettes per day Y    
Smoking Number of people who smoke in the same household (including self) Y    
Smoking Year quit smoking Y    
Smoking Year started smoking Y    

Physical Environment

Sub-category Variable type Screening Follow-Up Long-Term Follow-Up
Work Are you a shift worker Y    
Work Estimated number of calls on Airwave radios; Y    
Work Extensive transit radio questions; Y    
Work Have you ever used Airwave in the past Y    
Work Have you ever worked in an operations or control room since joining the Police Force. Y    
Work Hours per week of overtime Y    
Work How many night shifts worked in a row Y    
Work How much control do you have over shift patterns Y    
Work Job satisfaction Y    
Work Other specified location of Airwave radio when are using it in Press-to-talk or mobile phone mode Y    
Work Proportion of total working time spent in an operations or control room since joining the police force Y    
Work Symptoms experienced while using or shortly after using Airwave radios; Y    
Work What year did you start using Airwave radios Y    
Work What year did you stop using airwave radios Y    
Work When having difficulties at work gets colleagues willing to listen to work related problems Y    

Physical Examination

Sub-category Variable type Screening Follow-Up Long-Term Follow-Up
Anthropometry BMI Y    
Anthropometry Body type Y    
Anthropometry Fat percentage Y    
Anthropometry Height Y    
Anthropometry Hip girth Y    
Anthropometry Impedance Y    
Anthropometry Pulse wave Y    
Anthropometry Sitting height Y    
Anthropometry Weight Y    
Heart Blood preassure sitting and standing Y    
Heart Pulse sitting and standing Y    
Heart ECG Y    

Biosample Assays

Sub-category Variable type Screening Follow-Up Long-Term Follow-Up
Biochemistry Urine Y    
Haematology Albumin Y    
Haematology Apolipoprotein A Y    
Haematology Apolipoprotein B Y    
Haematology Bilirubin Y    
Haematology Calcium Y    
Haematology Cholesterol Y    
Haematology Creatinine Y    
Haematology Fibrinogen Y    
Haematology Glucose Y    
Haematology Haematocrit Y    
Haematology Haemoglobin Y    
Haematology HDL Y    
Haematology Platelets Y    
Haematology Potassium Y    
Haematology Red and white blood cells count Y    
Haematology Sodium Y    

Digital Phenotyping

Sub-category Variable type Screening Follow-Up Long-Term Follow-Up
Cognitive Performance Two choice teaction time Y    
Cognitive Performance Paired associate learning Y    
Cognitive Performance Fluid intelligence Y    
Cognitive Performance Stroop test Y    
Cognitive Performance Working memory test - forward digit span Y