Study designs of evaluations included in the review
Randomised controlled trials (RCTs) were included.
Specific interventions included in the review
Treatment for osteoporosis using calcitonin and etidronate medication, placebo (with or without calcium and/or vitamin D) or calcium.
Participants included in the review
Post-menopausal women were included.
Outcomes assessed in the review
Changes in bone mineral density (BMD) and new fractures were assessed.
How were decisions on the relevance of primary studies made?
The authors do not state how the papers were selected for the review, or how many of the authors performed the selection.