Table 1.

Patient demographics and background characteristics (n = 140)

Age	63.1 ± 5.2
ASA class
I	49 (35)
II	84 (60)
III	7 (5)
Civil status
single	13 (9)
married/cohabiting	127 (91)
Education
elementary school	47 (34)
junior high school	28 (20)
senior high school	30 (21)
university	31 (22)
unspecified	4 (3)
Employment
full-time	58 (41)
part-time	8 (6)
retired	70 (50)
on sick leave	4 (3)
Time on waiting list
< 1 month	15 (11)
1–2 months	42 (30)
2–3 months	26 (18)
> 3 months	57 (41)

Continuous data are presented as means ± SD and categorical data as n (%).