Data presented as n (%) or mean (range). aNonsteroidal anti-inflammatory drugs in a stable daily dosage: diclofenac, 100 or 150 mg daily; naproxen, 1,000 or 1,500 mg daily; ibuprofen, 800, 1,200 or 1,600 mg daily; celecoxib, 200 mg daily. bSulfasalzine in a dosage of 2 g daily. cEtanercept in a dosage of 50 mg weekly. dAlendronat in a weekly dosage of 70 mg.