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Table 2 Parameter values (deterministic, in ranges) for modelling: Yearly probabilities for developing health conditions, and cohort starting ages

From: Access to health care for older people with intellectual disability: a modelling study to explore the cost-effectiveness of health checks

 

Data

Source and details

Yearly probabilities for developing health conditions

Hypertension, diabetes excluded

 40 to 49 years

0·35 to 1·14%

Derived from 3 years incidence data from IDS-TILDA by McCarron and colleagues [17]

 50 to 64 years

1·56 to 2·28%

As above

 65 years+

2·39 to 4·76%

As above

Stroke

 40 to 49 years

0 to 1·11%

As above

 50 to 64 years

0·23 to 1·13%

As above

 65 years+

0·44 to 2·85%

As above

Coronary heart disease (CHD)

 40 to 49 years

0

As above

 50 to 64 years

0·07 to 0·91%

As above

 65 years+

0·44 to 2·82%

As above

Diabetes

 40 to 49 years

0 to 1·11%

As above

 50 to 64 years

0·03 to 1·32%

As above

 65 years +

0·07 to 1·83%

As above

Obesity

 Proportion with obesity (all ages)

33·5%

As above

Bowel cancer

 50 to 64 years

0·24 to 1.28%

Derived from 3 years incidence data for all types of cancer from IDS-TILDA by McCarron and colleagues [17] applied to proportion of bowel cancer among all types of cancer from Cancer Research UK [30]

 65 years+

0·3 to 2·49%

As above

Breast cancer

 50 to 64 years

0 to 0·16%

Derived from 3 years incidence data for all types of cancer from IDS-TILDA by McCarron and colleagues [17] applied to proportion of breast cancer among all types of cancer from Cancer Research UK [30]

 65 years +

0·04 to 0·19%

As above

Osteoporosis

 50 to 64 years

2·8 to 5·9%

Derived from 3 years incidence data from IDS-TILDA by McCarron and colleagues [17]

 65 years +

4·8 to 11·2%

As above

HIP fracture

 50 to 64 years

0·07 to 0.55%

As above

 65 years +

0·08 to 1·11%

As above

Cataract

 40 to 49 years

0·9 to 3%

As above

 50 to 64 years

1·32 to 3·2%

As above

 65 years +

1·04 to 4·09%

As above

Glaucoma

 40 to 49 years

0 to 1.2%

As above

 50 to 64 years

0·14 to 1·1%

As above

 65 years +

0 to 0·15%

As above

Hearing problems

 All ages

2 to 13·4%

Carvill [28] and Kerr and colleagues [29]

Cohort starting ages (if different from 40 years), years

 Bowel cancer

60

Starting age of national screening programme

 Breast cancer

50

As above

 Osteoporosis

50

Age when prevalence strongly increases according to data from IDS-TILDA by McCarron and colleagues [17]