Positive predictive value (PPV) of a non-normal dual-energy X-ray absorptiometry outcome, based on various patient demographics, including a prior non-normal quantitative X-ray (QXR) scan for the Newcastle population
| Patient demographic | PPV |
| Referred by current CRC | 0.88 |
| CRC+female | 0.91 |
| CRC+over 65 | 0.94 |
| CRC+patient has non-normal QXR result | 0.98 |
CRC, clinical referral criteria.