2.3.10. Outcome measures.
functional neck disability, NDI, pain
SECONDARY
The primary outcomes were:The intensity of pain was assessed using the NPRS, which is valid, reliable, and universally accepted scale.This study measured functional neck disability using NDI, which is widely used and well validated.The secondary outcome was:An assessment of smartphone addiction was performed using the SAS, which has been proven to be a reliable and valid instrument. Total score of SAS ranges between 33 to 198 and higher score indicates more disability.The study was single blinded as only the assessor was blinded during treatment, and patients and the clinical therapist were not blinded due to the nature of the treatment protocol.