Forty participants started the study: 20 for the control group and 20 for the treatment group. The mean of the time span between the traumatic event and the first visit in the rehabilitation group was longer than 22 months, time enough to wait any kind of spontaneous recovery.~In order to establish correct comparisons, the investigators analyzed whether both groups of participants (control group and treatment group) were homogeneous or not regarding the age, gender, time span between the traumatic event and the first visit to the office, brain damage and loss of conscience. Investigators administered visual analogic scale (VAS), CCCRC olfactory test and quality of life questionnaire (RSDI) to both groups at the beginning of the study and 12 months late
The aim of our study was to compare the recovery of smell in people suffering posttraumatic olfactory impairment following a systematic olfactory rehabilitation performed by occupational therapists to natural recovery in a control posttraumatic group of patients.