Sample characteristics, n=704
| Sex | N (%) |
| Female | 523 (74.4) |
| Male | 180 (25.6) |
| Age, mean (SD)† | 41.8 (11.4) |
| Highest level of education‡ | n (%) |
| Elementary school | 67 (9.6) |
| Upper secondary school | 367 (52.6) |
| Other education (ie, higher vocational training) | 92 (13.2) |
| Higher education (ie, first, second or third cycle) | 172 (24.6) |
| Preoperative weight, mean (SD)‡ | 120.3 (22.0) |
| Preoperative BMI, mean (SD)‡ | 41.8 (5.7) |
*Missing n=1.
†Missing n=8.
‡Missing n=6.
BMI, Body Mass Index.