The Effect of Chiropractor-informed Triage on Low Back Pain Patient Outcomes and Trajectories

11-point numerical rating scale (NRS) :global measure of pain intensity anchored by two extremes of pain intensity ranging from 0 ('no pain') to 10 ('pain as bad as it could be').

The diagnosis and clinical management (i.e. self-management; including advice or brief intervention/medication), referral to other first line care practitioner (chiropractor, physiotherapist, etc.) or medical specialist, injection, leave of absence, etc.) decided by the specialist will be retrieved immediately after the initial encounter and compared to the chiropractor's working diagnosis, risk stratification or referral need according to current evidenced-bases practice guidelines

Will be monitored through the patient's electronic clinical record (ECR), which is used in all health and social services across the Centre intégré universitaire de santé et de services sociaux de la Mauricie-et-du-Centre-du-Québec (CIUSSS-MCQ) institutions.

Will be monitored through the patient's electronic clinical record (ECR), which is used in all health and social services across the CIUSSS-MCQ institutions.

Will be monitored through the patient's electronic clinical record (ECR), which is used in all health and social services across the CIUSSS-MCQ institutions.

Will be monitored (including date of visit, type of professional, number of visit, prescribe medication, referrals) through the patient's electronic clinical record (ECR), which is used in all health and social services across the CIUSSS-MCQ institutions.

Non-publicity funded care include any care that was fully paid out of pocket or reimbursed by a personal insurance coverage. This will be tracked by asking patients at follow-up if they sought first line care for their current LBP episode since the last assessment time point.

Oswestry Disability Index (ODI): regroups ten questions related to different domains including pain intensity, personal care, lifting, walking, sitting, standing, sleeping, sexual life, social life, and traveling. Each question is rated on a scale of 0 to 5 points with a maximum score of 50. Higher scores indicate greater disability

Defined as LBP episode lasting more than 24 h, preceded and separated by a period of at least 1 month without LBP; will be tracked with a personal diary.

WHO Quality of Life-BREF questionnaire: assesses the individual's perceptions in the context of their culture and value systems, and their personal goals, standards and concerns. The instrument comprises 26 items, which measure the following four domains: physical health, psychological health, social relationships, and environment. Higher scores denote higher quality of life

11-point NRS for which the patients will be asked the following question: How likely do you think it is that you will have a complete recovery? Possible answers ranging from -5= "very unlikely" to +5="very likely", with 0 being "I don't know''

Will be measured using the following question: With respect to your low back pain, how would you describe yourself now compared to the initial onset of symptoms? Participants will select between one of the seven following choices: 1) completely better; 2) much improved; 3) slightly improved; 4) no change; 5) slightly worse; 6) much worse and 7) worse than ever

Patients will be asked to rate their experience with the chiropractor on a 5-point Likert scale (0=poor to 5=excellent) for each of the following items: 5-Time spent with the healthcare professional you saw; 6-Explanation of what was done for you; 7-Technical skills (thoroughness, carefulness, competence) of the healthcare professional you saw; 8-The personal (courtesy, respect, sensitivity, friendliness) of the person you saw; 9-The visit overall.