Table 1

Distribution of sex, age, type of surgery, anaesthesia and time of interview between the two samples

Sample set I n=18Sample set II n=20
 Female, n1011
 Male, n89
 Mean (min.–max.)49.5 (21–80)49 (18–76)
Type of surgery, n
 Ear, nose and throat surgery1
Type of anaesthesia, n
Postoperative day of interviews, mean (min.–max.)36 (22–57)14 (12–19)
Media of interview, n
 Face to face
  At the participant’s home75
  At the participant’s workplace3
  At the university71
  At the hospital1