Table 1.

Criteria for Identifying Women for Bone Mineral Density Testing Under Each Screening Strategy^*

Age group	USPSTF strategy	Canadian strategy
50–64 years	FRAX-predicted risk of major osteoporosis fracture ≥8.4% (using FRAX without bone density information)	Based on presence of one or more clinical risk factor: fragility fracture after age 40† Prolonged glucocorticoid use (≥3 months in prior year of prednisone equivalent dose ≥7.5 mg daily) Parental hip fracture Aromatase inhibitor use Vertebral fracture‡ High alcohol intake (≥3 units/day) Current smoking Low body weight (<60 kg) Major weight loss (>10% of weight at age 25)§ Other disorders strongly associated with osteoporosis**
≥65 years	Routine screening	Routine screening

^*USPSTF denotes United States Preventive Services Task Force; FRAX denotes Fracture Risk Assessment Tool. Strategies are applicable to women without prior fragility fracture.

^†Any self-reported fracture ≥55 years of age

^‡≥55 years of age

^§We did not have information regarding participant weight at age 25, so we substituted information regarding >10% weight loss of weight since age 35 years

^**Disorders include rheumatoid arthritis (self-reported), premature menopause (≤45 years-old), using a special diet for gastrointestinal disorders (malabsorption, celiac sprue, ulcerative colitis, or Crohn’s disease), liver disease, emphysema, or chronic bronchitis