Table 4. Association between muscle strength improvement, clinical variables and surgery duration.

Muscle strength 2**	B	SE	p*	Exp(B)	95%CI
(improved muscle strength)
Constant	5,07	2,73	0,004
Age	-0,74	0,044	0,094	0,928	0.851-1.013
Sex	0,565	0,892	0,526	1,759	0.306-10.103
Time from initation of symptoms to admission	-0,24	0,010	0,019	0,977	0.957-0.996
Time from initation to surgery	0,231	0,142	0,104	1,260	0.953-1.666
B: Regression coefficient; SE: Standard error; Exp (B): Odds ratio; Cl: Confidence interval.