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Table 1 Patient characteristics (n = 58)

From: Mastoidectomy and mastoid obliteration with autologous bone graft: a quality of life study

  Total (n = 58) Primary (n = 46) Secondary (n = 12)
Average age (std dev) in years 40 (16) 43 (16) 30 (14)
Male 31 24 7
Female 27 22 5
Right ears 28 24 4
Left ears 30 22 8