Table 1 Patient characteristics

Gender (male/female)

52/38

18/12

.83

Age at surgery (years)

38.7 ± 14.7^a

36.4 ± 14.6^a

.48

Disease duration at surgery (years)

10.3 ± 7.8^a

5.5 ± 4.3^a

.0017

Indication for surgery

Cancer/dysplasia

27

1

.0022

Refractory

63

29

Follow-up time (years)

10.0 (0.2–22.9)^b

18.0 (2.3–44.1)^b

<.0001

Total disease duration (years)

20.3 ± 9.0^a

23.4 ± 9.7^a

.21