The worst recovery time was for patients who made any number of visits to a family doctor, combined with more than six visits to a chiropractor, who had a median time to recovery of 689 days.

• 而最差的恢复时间是那些访问家庭医生次数很多加上访问脊椎指压治疗师六次以上，这些病人的恢复时间为689天。