Population Qualitative Data

Population age groups

Paediatric Population (< 18 years)
Adolescents (12 to < 18 years)
Adults (18 to < 46 years)
Adults (46 to < 65 years)
Elderly (≥ 65 years)
Adults (65 to < 75 years)
Adults (75 to < 85 years)
Adults (85 years and over)

Estimated percentage of the population covered by the data source in the catchment area

In CPRD GOLD July 2024 there were 2,894,922 current acceptable patients (i.e. registered at currently contributing practices that use Vision software, excluding transferred out, deceased patients and those flagged by CPRD as not acceptable for clinical research for data quality issues) equal to 4.32% based on the UK population estimates of 67,026,300 from the Office of National Statistics (July 2024). Our Oxford OMOP CDM data include 2,894,714 after excluding 208 patients as described for the full population below: the percentage remains the same.

Description of the population covered by the data source in the catchment area whose data are not collected (e.g., people who are registered only for private care)

CPRD GOLD July 2024 included 24,380,228 patients of which 2,896,079 were flagged as not acceptable for clinical research. Our CDM data include 17,521,504 by excluding those and also patients with gender not equal to Male or Female (1,143), year of birth before 1875 (785), practice up-to-standard after the patient died (3) or left the practice or after the last collection date or patients with no observations (227,221). The numbers below refer to this CDM population.
Population

Population size

17521504

Active population size

2894714

Population by age group

Age groupPopulation sizeActive population size
Paediatric Population (< 18 years)
3147229
519902
Children (2 to < 12 years)
1856658
287819
Adolescents (12 to < 18 years)
963131
200949
Adults (18 to < 46 years)
7516645
1061418
Adults (46 to < 65 years)
3377115
725924
Elderly (≥ 65 years)
3480514
587470
Adults (65 to < 75 years)
1377791
303212
Adults (75 to < 85 years)
1187660
205960
Adults (85 years and over)
915064
78298
Median observation time

Median time (years) between first and last available records for unique individuals

5.87

Median time (years) between first and last available records for unique active individuals (alive and currently registered)

13.36