Table 1.

Subgroup analysis: The factors length of hospital stay, age, weight, ASA-score and pain were analyzed for the subgroups of age (≤ 65 years and > 65 years) (p < 0.05)

	Age
	≤ 65 years (n = 25)	> 65 years (n = 25)
Length of hospital stay (d)	5.5 ± 1.4	6.2 ± 1.0 #
Age (y)	58.9 ± 5.2	73.9 ± 6.0 #
Weight (kg)	82.6 ± 14.0	77.3 ± 15.6
ASA-score	2 (2–2)	2 (2–2)
Pain scale (1–10)
First. p.o. day—straight walk	4 (3–5)	4 (3–5)
Day before discharge—straight walk	3 (2–3)	3 (2–3)
Day before discharge—stairs up	3 (1–3)	3 (1–4)
Day before discharge—stairs down	3 (1–3)	3 (1–4)