Physicians using spinal manipulative treatment in The Netherlands: a description of their characteristics and their patients

Table 1 Overview of physician and patient related data collection

Type of data	Source of data	Outcome measures
Physician characteristics	Survey	Demographics, training, treatment and referral patterns
Physician characteristics	Telephone call	Number of days per week spent in MSK practice
Patient characteristics (web-based registry)	Sample	Patient questionnaires	Treating physician
	Cohort 1 (09/12–03/13)	Numerical Rating Scale	Demographics, source of referral, type and duration of complaints, and treatment
	Cohort 2 (04/13–01/14)	RDQ, NDI, LEFS, DASH, HIT-6^a
	Cohort 3 (02/14–02/16)	Previous treatments

^aRDQ (Roland Disability Questionnaire); 24 items, range 0–24, higher scores indicate more disability
NDI (Neck Disability Index); 10 items, range 0–50, higher scores indicate more disability
LEFS (Lower Extremity Function Scale); 20 items, range 0–80, higher scores indicate less disability
DASH (Disabilities of the Arm, Shoulder, and Hand); 30 items, range 0–100, higher scores indicate higher disability
HIT-6 (Headache Impact Test); 6 items, range 36–78, higher scores indicate more disability

ISSN: 1471-2474