Within-Group Differences
NDI
Within-group differences and the proportion of responders in self-rated recovery are shown in There were no between-group differences in the proportion of responders to treatment (Proportion of responders to treatment at 3- and 15-month follow-up. Data labels above the bar show the absolute number and the total number of participants (absolute/total) for each measurement. The proportion of responders achieving a clinically important difference in the NDI (≥7%), Visual Analog Scale (≥50% neck pain reduction), and PSFS (≥2 points improvement in PSFS work, leisure time, and physical activity). NDI: Neck Disability Index; NSE: neck-specific exercise at a physiotherapy clinic; NSEIT: neck-specific exercise with internet support; PSFS: Patient Specific Functional Scale.