Table 3

Reclassification of hip fracture cases and non-cases with RA (CPRD-HES) with addition of duration of RA disease, high-dose glucocorticoids and secondary osteoporosis to the recalibrated UK FRAX model, using age-specific NOGG intervention thresholds*

Extended UK FRAX
Recalibrated UK FRAXAbove thresholdNo changeBelow thresholdTotal
Total, n40765083067221
Hip fracture cases, n1821613247
Hip fracture non-cases, n38962922936974
  • *The intervention threshold is set at the probability of hip fracture equal to that of a woman, with BMI 24 kg/m2, and prior fracture, for a specific year of age and is applied to both men and women.

  • BMI, body mass index; CPRD, Clinical Practice Research Datalink; HES, Hospital Episode Statistics; NOGG, National Osteoporosis Guideline Group; RA, rheumatoid arthritis.