Mean (95% CI), at Each Study Visit, of Principal Outcomes Difference Between Groups Adjusted for Baseline Score, According to Best-Case and Worst-Case Scenariosa
↵a GPR=global postural re-education group, MT=manual therapy group, T1=time 1 (immediately postintervention), T2=time 2 (6 months postintervention), CI=confidence interval, VAS=visual analog scale, NDI-I=Neck Disability Index (Italian version), *Significantly different between groups (adjusting for baseline score): P<.05 (95% CI).