osteoporosis: time until bisphosphonate benefit
A recent meta-analysis assessed the time to show benefit of bisphosphonate therapy in preventing fractures in postmenopausal women with osteoporosis, which is helpful in determining for which women these meds are not indicated (see o steoporosis bisphosph time to benefit jamaintmed2021 I n dr opbox, or doi:10.1001/jamainternmed.2021.6745 ) Details: --10 high quality RCTs were identified that involved postmenopausal women with osteoporosis based on existing vertebral fractures or bone mineral density (BMD) of -2.5 or lower; the studies each ranged from 994 to 7765 women involved --23,384 women identified and followed --age range 63-74, follow-up duration 12-48 months --doses of meds: alendronate 5-20 mg/d, risedronate 2.5-5 mg/d, zoledronic acid 5 mg/d --main outcomes: time to 3 different absolute risk reductions (ARRs) with differing thresholds (0.002, 0.005, and 0.010 ) for the first nonvertebral fracture (these ARRs reflects 1 event per 500, 1 per...