Table 3. Data available from the Hertfordshire Ageing Study baseline and follow-ups.
| Baseline | Follow-up 1 | Follow-up 2 | |
|---|---|---|---|
| Year | 1920-30 | 1994-95 | 2003-05 |
| Age | 0-5 | 63-73 | 72-83 |
| n | 2621 | 824/717m | 359/294n |
| Early life measures | |||
| Weight at birth |
|
||
| Method of infant feeding |
|
||
| Weight at one year of age |
|
||
| Illnesses and development to age 5 |
|
||
| Ageing markers | |||
| Grip strength (kg) |
a
|
b
|
|
| Cognitive function | |||
| AH4 IQ and Mill Hill vocabulary tests |
|
|
|
| Abbreviated mental test and mini mental state exam |
|
||
| Skin thicknessc |
|
||
| Eye examination | |||
| Visual acuity |
|
|
|
| Intraocular pressure, Macular degeneration, Lens opacity |
|
||
| Audiometryd |
|
|
|
| Falls in the past year |
|
||
| Frailtye |
|
||
| Medical characteristics | |||
| Anthropometry | |||
| Height, weight, waist and hip circumferences |
|
|
|
| Skinfolds (triceps, biceps, subscapular, suprailiac) |
|
||
| Prescribed medication |
|
|
|
| Blood pressuref |
|
|
|
| Blood samples |
g
|
h
|
|
| Stored for posterity |
|
|
|
| Extracted DNA |
|
|
|
| Cardiovascular symptomsi |
|
|
|
| Lung function: FEV1 and FVCj |
|
||
| Respiratory symptoms |
|
|
|
| Urine samples |
|
||
| Hand examination for osteoarthritis |
|
||
| Reproductive history |
|
|
|
| SF36 self assessed health |
|
||
| Lifestyle, socio-economic characteristics and physical performance | |||
| Social Classk |
|
|
|
| Diet assessed by food frequency questionnaire |
|
||
| Physical performance | |||
| Questionnaire assessment |
|
|
|
| Battery of testsl |
|
||
| Smoking and alcohol habit |
|
|
|
| Occupational history |
|
|
|
Harpenden hand grip dynamometer.
Jamar hand grip dynamometer.
Dermotronics DM70 A-scan ultrasound system.
Hughson Westlake method.
Fried, Townsend and Strawbridge scores.
dinamap recorder.
random.
fasted.
including Rose questionnaire.
Micro spirometer, MicroMedical.
OPCS SOC90 classification of social class, coded from most recent full time occupation for men and never married women, and husband’s most recent full time occupation for ever married women.
comprising quadriceps strength, timed 6m up-and-go test, timed 3m walk, chair rises, timed one-legged stand and functional reach test.
824 men and women participated in the follow-up 1 home interview and 717 participated in the clinic.
359 men and women participated in the follow-up 2 home interview and 294 participated in the clinic.