CRP and Myalgia: Among 152 patients with polymyalgia rheumatica, the flare, methotrexate add-on, and C-reactive protein normalization rates were 15.9 (95% confidence interval, 8.8-23.1)/100 person-years, 9.3 (3.6-15.0) /100 person-years, and 70.3 (61.3-79.2) /100 person-months, respectively.