Comparison of baseline innate and psychological characteristics between those who had LBP and those who had no LBP.

Responders = those responding to online survey, Non-responders = those not responding to survey, LBP = low back pain, * = p-values for comparison of those with LBP and those without LBP (responders only), # = p-values for comparison of those responding to survey and those not responding to survey, BMI = Body Mass Index, BDI = Beck Depression Inventory, FPQ = Fear of Pain Questionnaire (9 items), BBQ = Back Beliefs Questionnaire, STAI = State Trait Anxiety Inventory (state portion only). Bold font indicates p-value less than 0.05.