Figure 1. Consort Diagram
In the QG the likelihood that the clinician would make a diagnosis was
77%, higher than in the NQG, 57% but this did not reach statistical
significance, p=0.0555 (Table 1). The two most common diagnoses were
Benign Paroxysmal Positional Vertigo (BPPV) 18/85 (21%) and Vestibular
Migraine 16/85 (20%) (Figure 2). There was no significant difference in
the distribution of diagnoses made in the two groups . Clinicians
requested additional investigations, such as MRI scans, for 9/35 (26%)
of patients in the QG, compared to 34/47 (72%) patients in the NQG, and
this difference was statistically significant p = 0.0409. A bigger
proportion of QG patients were referred for vestibular physiotherapy
6/35 (17%), than in the NQG 6/47 (13%). After the initial telephone
consultation, 18/35 (51%) of QG patients were discharged compared to
19/47 (40%) in the NQG. There were significantly fewer telephone
follow-up consultations requested in the QG, 6/35 (17%), compared to
the NQG 20/47 (43%), p=0.0173.