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About Twenty-07: What is measured?

At the end of the Study each participant had been surveyed five times. A nurse conducted the interview with each participant and recorded the following information.

Self-reported health

  • General well-being
  • Symptoms of illness (if any)
  • Chronic (long term) conditions
  • Disabilities
  • Vision
  • Hearing
  • Mental health
  • Use of health care services
  • Use of medication


Physical health

Height (standing and sitting)


Waist and hips

Blood pressure reaction to stress test

Blood pressure and pulse rate

Grip strength*

Respiratory (lung function) test

Bio-impedance (a measure of internal body fat)*


Reaction time

Reasoning test


Life circumstances

  • Family structure
  • Household composition
  • Home owner or tenant, condition of the house/flat
  • Ownership of household goods
  • Level of housework and caring responsibilities
  • Family health
  • Employment
  • Occupation and work environment
  • Income
  • Family networks
  • Social support
  • Life events e.g. recent marriages, deaths, new babies, etc.



  • Diet
  • Exercise
  • Smoking
  • Alcohol and illegal drug use
  • Sexual behaviour and contraceptive use
  • Preventative health care use e.g. breast cancer screening
  • Illness behaviour
  • Social participation
  • Leisure activities
  • Criminal activities


Beliefs, attitudes and values

  • Concepts of health
  • Beliefs about illness
  • Health knowledge
  • Self esteem
  • Beliefs about control over life and health
  • Religious beliefs
  • Worries
  • Beliefs about gender, age and marital roles
  • Life satisfaction
  • Opinions


Biological Samples

  • General measure of immune system (sIgA from saliva)**
  • Risk factors for cardiovascular disease, diabetes and obesity (cholesterol, fibrinogen, C-reactive protein, HbA1c, ADMA, leptin)*
  • General health (measures of liver and kidney function, full blood count, blood cell ageing from telomere length)*
  • DNA*

*      Measured in 2007/08 only
**    Measured in 1995 only