An interaction between electrodiagnostic status and time revealed faster weekly improvements in RMDQ scores in patients with radiculopathy at the 6-week ( -0.72 , 95 % CI -1.4 to -0.04 ; P = 0.040 ) through the 16-week ( -0.30 , 95 % CI , -0.57 to -0.04 ; P = 0.028 ) follow-up occasions compared to patients without radiculopathy .