70 Chapter 4 Table 1: Demographic characteristics. T0 cohort (n=194) underwent hypothesis testing, Internal consistency and Inter-item correlation. T1 cohort (n=124) underwent Test Retest and Responsiveness (n=47). Characteristics validity Reliability [test-retest] responsiveness T0 (N=194) Percentage (%) T1 (N=124) Percentage (%) T2 (N=47) Percentage (%) Age, years Mean ± SD 53 ±16 - 55 ±15 - 52±15 - Range (min. - max.) 18-82 - 18-82 - 18-78 - Gender Female 94 48,5 57 46,0 26 55,3 Male 100 51,5 67 54,0 21 44,7 Hospital Amsterdam UMC 180 92,8 114 91,9 44 93,6 Amstelland Hospital 14 7,2 10 8,1 3 6,4 Type of surgery performed Stapedotomy N/A - N/A - 9 19,2 Cochlear implant N/A - N/A - 7 14,9 Ossicular chain reconstruction N/A - N/A - 9 19,2 Cholesteatoma surgery N/A - N/A - 12 25,5 Myringoplasty N/A - N/A - 5 10,6 Other N/A - N/A - 5 10,6 Diagnosis Diagnosis known by the patient 143 73,3 91 73,4 N/A - Diagnosis unknown for the patient 20 10,3 14 11,3 N/A - No diagnosis was made (yet) 31 16 19 15,3 N/A - Distribution of diagnosis* Cholesteatoma 14 9,8 10 11 N/A - Middle ear infection 20 13,9 14 15,4 N/A - Otosclerosis 16 11,2 10 11 N/A - Open cavity 19 13,2 12 13,2 N/A - Hearing impaired 69 48,2 46 50,5 N/A N/A Tinnitus 45 31,4 31 34 N/A N/A Ear canal infection 35 24,4 25 2,7 N/A N/A Impacted cerumen 15 10,4 11 12,1 N/A N/A Benign positional vertigo (BPPV) 9 6,3 7 7,6 N/A N/A Meniere’s disease 2 1,4 1 1,1 N/A N/A Neurinoma 4 2,8 3 3,2 N/A N/A Ear canal stenosis 6 4,2 4 4,4 N/A N/A Other 29 20,2 17 18,6 N/A N/A * = a patient can have multiple diagnosis
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